Ford Explorer: Instrumentation, Message Center and Warning Chimes / Diagnosis and Testing - Instrumentation, Message Center and Warning Chimes

• Fuse
• Wiring, terminals or connectors
• Communication concern
• Module

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the hill descent switch. GO to Pinpoint Test U

• CHECK the operation of the fuel gauge, the speedometer and the odometer.
  • If the fuel gauge does not operate correctly, GO to Pinpoint Test D
  • If the speedometer does not operate correctly, GO to Pinpoint Test E
  • If the odometer does not operate correctly, GO to Pinpoint Test G
  • If the speedometer, the fuel gauge and the odometer operate correctly, INSTALL a new IPC.
    REFER to: Instrument Panel Cluster (IPC) (413-01 Instrumentation, Message Center and Warning Chimes, Removal and Installation).
    

• Verify the message center is set to display the TPMS tire pressures. REFER to the Owner's Literature for message center navigation.
  • If the message center is set to display tire pressures, DIAGNOSE the TPMS. GO to Pinpoint Test AM
  • If the message center is not set to display the tire pressures, EXPLAIN to the customer how to navigate the message center menu to display the TPMS tire pressures.

• Message center concern
• Brake warning indication concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly and the brake warning indicator is never on, GO to Pinpoint Test O
• If the driver door ajar message functions correctly and the brake warning indicator is always on, GO to Pinpoint Test P

• Message center concern
• Door ajar RTT indication concern

• Message center concern
• Electric parking brake concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the electric parking brake.
  REFER to: Anti-Lock Brake System (ABS) and Stability Control (206-09 Anti-Lock Brake System (ABS) and Stability Control, Diagnosis and Testing).
  .

• Message center concern
• EPAS system concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the EPAS.
  REFER to: Power Steering (211-02 Power Steering, Diagnosis and Testing).
  

• Message center concern
• The PCM has not reached the programmed mileage/time based on the criteria required to display the message.

NOTE: Using the system check in the message center, verify the oil life is between 1 and 5% for the CHANGE ENGINE OIL SOON message or at 0% for the OIL CHANGE REQUIRED message.

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message functions correctly.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly with the oil life between 0-5%, INSTALL a new IPC.
  REFER to: Instrument Panel Cluster (IPC) (413-01 Instrumentation, Message Center and Warning Chimes, Removal and Installation).
  
• If the driver door ajar message functions correctly with the oil life not at the specified value, INFORM the customer how the message center functions and how the oil life messages are set.

• Message center concern
• Engine over-temperature indication concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the engine over-temperature warning indicator. GO to Pinpoint Test T

• Message center concern
• Lane keeping alert warning chime concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the lane keeping alert warning chime. GO to Pinpoint Test CC

• Message center concern
• Charging system indication concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the charging system warning indicator or charging system RTT. GO to Pinpoint Test Q

• Message center concern
• Low engine oil pressure indication concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the low engine oil pressure indicator or RTT indicator. GO to Pinpoint Test Y

• MyKey® programmed key in use
• Number of keys set to unlimited mode
• Non-Ford approved remote start system installed

NOTE: MyKey® may not be compatible with non-Ford approved remote start systems.

• REFER to the Owner's Literature.

• Message center concern
• AWD system concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the AWD system.

• Message center concern
• AWD system concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the AWD system.

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the parking aid system. REFER to the appropriate 413-13 section.

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the police idle RTT indicator. GO to Pinpoint Test AD

• Message center concern
• Pre-collision assist system concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the collision assist system.
  REFER to: Collision Warning and Collision Avoidance System (419-03C Collision Warning and Collision Avoidance System, Diagnosis and Testing).
  

• Message center concern
• Stability-traction control indication concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the stability-traction control warning indicator. GO to Pinpoint Test AK

• Message center concern
• Push button start concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the ignition/starting system concern.
  REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).
  

• Message center concern
• TPMS warning indication concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the TPMS warning indicator. GO to Pinpoint Test AM

NOTE: This message only appears during the TPMS sensor training procedure.

• CARRY OUT the TPMS sensor training.
  REFER to: Tire Pressure Monitoring System (TPMS) Sensor Location Calibration (204-04B Tire Pressure Monitoring System (TPMS), General Procedures).
  

• TPMS warning indicator concern
• TPMS sensor training concern

NOTE: These messages only appear during the TPMS sensor training procedure.

• VERIFY the TPMS warning indicator functions.
• If the TPMS warning indicator does not operate, GO to Pinpoint Test AM
• If the TPMS warning indicator operates, CARRY OUT the TPMS sensor training.
  REFER to: Tire Pressure Monitoring System (TPMS) Sensor Location Calibration (204-04B Tire Pressure Monitoring System (TPMS), General Procedures).
  

• This message only appears during the TPMS sensor training procedure.
• CARRY OUT the TPMS sensor training.
  REFER to: Tire Pressure Monitoring System (TPMS) Sensor Location Calibration (204-04B Tire Pressure Monitoring System (TPMS), General Procedures).
  

• Message center concern
• Transmission not in park warning chime concern

• OPEN then CLOSE the driver door and VERIFY the driver door ajar message displays correctly with the door open and closed.
• If the driver door ajar message does not function correctly, GO to Pinpoint Test R
• If the driver door ajar message functions correctly, DIAGNOSE the PRNDL/PRNDM. GO to Pinpoint Test AH

• Using a diagnostic scan tool, perform the IPC self-test.
• If any Diagnostic Trouble Codes (DTCs) are present, REFER to the IPC DTC DTC Chart.
• If no Diagnostic Trouble Codes (DTCs), DIAGNOSE the audio system. Without SYNC,
  REFER to: Information and Entertainment System - Vehicles Without: SYNC 3 (415-00A Information and Entertainment System - General Information - Vehicles Without: SYNC 3, Diagnosis and Testing).
  With SYNC, REFER to: Information and Entertainment System - Vehicles With: SYNC 3 (415-00B Information and Entertainment System - General Information - Vehicles With: SYNC 3, Diagnosis and Testing).
  

• Normal condition
• IPC

• Using a diagnostic scan tool, PERFORM the IPC self-test.
• If DTC P1534:01 is present, INSTALL a new IPC.
  REFER to: Instrument Panel Cluster (IPC) (413-01 Instrumentation, Message Center and Warning Chimes, Removal and Installation).
  
• If DTC P1534:01 is not present, the system is operating correctly. The airbag secondary warning chime sounds only when a fault in the airbag warning indicator is present and DTC P1534:01 is recorded.

• Door ajar indication concern
• IPC

• With the ignition OFF, the headlamps in the PARKING LAMPS position and the doors closed, OPEN the driver door and VERIFY the headlamps on warning chime sounds.
• If the headlamps on chime sounds, GO to Pinpoint Test R
• If the headlamps on chime does not sound, GO to Pinpoint Test BZ

NOTE: The lane keeping aid warning chime only sounds to alert the driver they have their hands off the steering wheel. Normal alerting is done through steering wheel vibrations, which cannot be felt when the driver's hands are not on the steering wheel.

• No warnings present
• IPC

• With all the doors closed and the ignition OFF, PLACE the ignition ON. Once the IPC has completed the prove-out, OPEN the driver door and VERIFY the IPC displays the door ajar indicator or RTT indicator and the chime sounds once.
• If the chime sounds, the system is operating correctly. The message center warning chime only sounds when a new warning is displayed in the message center.
• If the door ajar message does not display, GO to Pinpoint Test R
• If the door ajar message displays and the chime does not sound, INSTALL a new IPC.
  REFER to: Instrument Panel Cluster (IPC) (413-01 Instrumentation, Message Center and Warning Chimes, Removal and Installation).
  

• PRNDL/PRNDM indication concern
• IPC

• With the ignition OFF, the headlamps in the PARKING LAMPS position and the doors closed, OPEN the driver door and VERIFY the headlamps on warning chime sounds.
• If the headlamps on chime sounds, DIAGNOSE the PRNDL indicator. GO to Pinpoint Test AH
• If the headlamps on chime does not sound, GO to Pinpoint Test BZ

• Stability-traction control concern
• IPC

• With the ignition OFF, the headlamps in the PARKING LAMPS position and the doors closed, OPEN the driver door and VERIFY the headlamps on warning chime sounds.
• If the headlamps on chime sounds, DIAGNOSE the stability-traction control indicator or stability-traction control RTT indicator. GO to Pinpoint Test AK
• If the headlamps on chime does not sound, GO to Pinpoint Test BZ

Normal Operation and Fault Conditions

REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

The IPC receives hot at all times voltage from the BCM. The IPC receives the ignition status message for the RUN/START or ACC input from the BCM through the GWM over the CAN.

Possible Sources

• Fuse
• Communication concern
• GWM
• IPC

Visual Inspection and Pre-checks

• Inspect the BCM fuse 13 (7.5A).

• Ignition ON.

• Using a diagnostic scan tool, perform a network test.

• Using a diagnostic scan tool, perform the IPC self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs) from the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect and inspect the GWM connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the GWM connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Virtual Gauges. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

AWD Gauge

• If the AWD wheel lock display message is missing for less than 5 seconds or if the IPC receives invalid torque data for less than 5 seconds, the IPC defaults the display fill area in front of the front wheels and behind the rear wheels to the last setting based on the the last message received.
• If the IPC does not receive the AWD wheel lock display message for 5 seconds or longer, the IPC defaults the display fill area in front of the front wheels and behind the rear wheels off.

Speedometer

• If the vehicle speed message is missing or invalid for less than 5 seconds, the IPC defaults the speedometer to the last indication state, based upon the last message received.
• If the vehicle speed message is missing or invalid for 5 seconds or longer, the IPC defaults the speedometer to 0 km/h (0 mph).

Tachometer

• If the engine rpm message is missing for less than 5 seconds, the IPC defaults the tachometer to the last indication state, based upon the last message received.
• If the engine rpm message is missing for 5 seconds or longer, the IPC defaults the tachometer to 0 rpm.

Fuel Gauge

• If the IPC does not receive the fuel level input for less than 33 seconds, the IPC defaults the fuel gauge to the last indication state based on the last input received.

Temperature Gauge

• If the engine coolant temperature data or engine overheat indication request messages are missing for less than 5 seconds, the IPC defaults the temperature gauge to the last indication state, based upon the last message received.
• If the engine coolant temperature data or engine overheat indication request messages are missing for 5 seconds or longer, the IPC defaults the temperature gauge to the full hot position.

Possible Sources

• Communication concern
• GWM
• AWD module
• PCM
• IPC

• Ignition ON.

• NOTE: The IPC and message center navigation can be found in the Owner's Literature. Using the message center controls, make sure the IPC is set to display the gauge in question.

• Using a diagnostic scan tool, perform the IPC self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, perform the PCM self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, perform the AWD module self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Virtual Gauges. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

High Voltage Battery Gauge

• If the battery state of charge data message is missing or invalid for less than 5 seconds, the IPC defaults the high voltage battery gauge to the last indication state, based upon the last message received.
• If the battery state of charge data message is missing or invalid for 5 seconds or longer, the IPC defaults the high voltage battery gauge off.

Possible Sources

• Communication concern
• GWM
• BECM
• IPC

• Ignition ON.

• NOTE: The IPC and message center navigation can be found in the Owner's Literature. Using the message center controls, make sure the IPC is set to display the gauge in question.

• Using a diagnostic scan tool, perform the IPC self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, perform the BECM self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Fuel Gauge. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

DTC Fault Trigger Conditions

Possible Sources

• Wiring, terminals or connectors
• Fuel pump and sender unit
• Fuel level sender (float and card)
• Fuel level sensor
• Fuel tank
• IPC

Visual Inspection and Pre-checks

• Inspect the fuel tank for signs of damage that can affect the float operation inside the tank. For the analog fuel gauge, inspect the gauge needle for signs of binding or damage.

• Ignition ON.

• Using a diagnostic scan tool, perform the IPC self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect Fuel Pump and Sender Unit C4331 .

• Ignition ON.

• Wait one minute.

• NOTE: DTC P0460:11 can be present when carrying out this step and should be disregarded at this time. Using a diagnostic scan tool, repeat the IPC on-demand self-test.

• Ignition OFF.

• Disconnect IPC C220 .

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C220-10		Ground

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C220-10		C220-2

• Ignition OFF.

• Disconnect Fuel Pump and Sender Unit C4331 .

• Connect a fused jumper wire:

  Lead 1	Measurement / Action	Lead 2
  C4331-3		C4331-4

• Ignition ON.

• Wait one minute.

• NOTE: DTC P0460:13 can be present when carrying out this step and should be disregarded at this time. Using a diagnostic scan tool, repeat the IPC self-test.

• Ignition OFF.

• Disconnect IPC C220 .

• Ignition ON.

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C220-10		Ground

• Ignition OFF.

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C220-10		C4331-3

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C220-2		C4331-4

• Ignition ON.

• Access the  IPC  and control the  FUELLEVEL (%)  PID

• Command the fuel gauge from 0% to 25%, 50%, 75% and 100% while observing the fuel gauge.

• Visually inspect the fuel tank for any damage or deformation.

• Disconnect and inspect the fuel pump and sender unit connector.

• Repair:
  • corrosion (install new connector or terminals-clean module pins)
  • damaged pins-install new terminals/pins
  • pushed-out pins-install new pins as necessary

• Reconnect the fuel pump and sender unit connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

NOTE: The fuel pump module (excluding Flex Fuel) resistance measures between 10 ohms ± 2 ohms at the upper stop position and 180 ohms ± 4 ohms at the lower stop position.

• Remove the fuel pump module.

• While moving the float arm from the lower stop position to the upper stop position measure the component side of the connector:

  Positive Lead	Measurement / Action	Negative Lead
  C4331-3 (Component side)		C4331-4 (Component side)

• Disconnect the fuel level sender (float and card) input wire from the fuel pump and sender unit.

• Measure the resistance between the fuel level sender (float and card) input wire and the fuel level sender (float and card) ground while slowly moving the float arm between the lower and upper stop position.
  Click to display connectors
  

  Positive Lead	Measurement / Action	Negative Lead
  Fuel Level Sensor (Component Side) - Pin 1		Fuel Level Sensor (Component Side) - Pin 2

• Ignition OFF.

• Disconnect IPC C220 .

• Connect a fused jumper wire:

  Lead 1	Measurement / Action	Lead 2
  C4331-3		C4331-4

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C220-10		C220-2

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Speedometer. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the vehicle speed message is missing or invalid for 5 seconds or longer, the IPC defaults the speedometer to 0 km/h (0 mph).

Possible Sources

• Communication concern
• GWM
• PCM
• IPC

• Ignition ON.

• Using a diagnostic scan tool, perform the IPC self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs) from the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Access the  IPC  and control the  SPDOMETER (%)  PID

• Command the speedometer on and off while monitoring the speedometer.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Speedometer. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the vehicle speed message is missing or invalid for less than 5 seconds, the IPC defaults the speedometer to the last indication state, based upon the last message received.

Possible Sources

• Axle ratio configuration
• Tire size configuration
• ABS concern
• GWM concern
• IPC

Visual Inspection and Pre-checks

• Verify the tire size on the vehicle matches the tire size listed on the vehicle certification label.

• Ignition ON.

• Using a diagnostic scan tool, view Module Programming for the programmed axle ratio.

• NOTE: The vehicle build axle ratio can be found in PTS under the OASIS tab. Locate and determine the vehicle build axle ratio.

• Ignition ON.

• Using a diagnostic scan tool, view Module Programming for the programmed tire size.

• NOTE: The correct tire size can be found on the vehicle certification label. Verify the size of the tires installed on the vehicle matches the vehicle configuration and the vehicle certification label.
  REFER to: Identification Codes (100-01 Identification Codes, Description and Operation).
  

• Using a diagnostic scan tool, perform the IPC self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs) from the IPC self-test.

• Using a diagnostic scan tool, perform the ABS module self-test.

• Access the  IPC  and control the  SPDOMETER (%)  PID

• Command the speedometer in 10% increments while monitoring the speedometer. The speed indicated should increase in increments of approximately 26 km/h (16 mph) for each 10% change.

  Command	Indication Range
  10% (20 km/h [12 mph])	20-26 km/h (12-16 mph)
  20% (40 km/h [25 mph])	40-48 km/h (25-30 mph)
  30% (60 km/h [37 mph])	60-70 km/h (37-43 mph)
  40% (80 km/h [50 mph])	80-92 km/h (50-57 mph)
  50% (100 km/h [62 mph])	100-114 km/h (62-71 mph)
  60% (120 km/h [75 mph])	120-136 km/h (75-85 mph)
  70% (140 km/h [87 mph])	140-158 km/h (87-98 mph)
  80% (160 km/h [99 mph])	160-180 km/h (99-112 mph)
  90% (180 km/h [112 mph])	180-202 km/h (112-126 mph)
  100% (200 km/h [124 mph])	200-224 km/h (124-139 mph)

• Access the  PCM  and control the  VSS (Kph)  PID

• NOTE: Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws. Monitor the PCM VSS PID while driving the vehicle at 32 km/h (20 mph), 64 km/h (40 mph) and 97 km/h (60 mph).

• Observe the speedometer while operating at various speeds and stopping frequently.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Odometer. REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the odometer count message is missing from the PCM through the GWM for 5 seconds or longer, the IPC defaults the odometer display to all dashes (------).

If the odometer count message is deemed invalid by the IPC, the IPC defaults the odometer display to all dashes (------). If the NVM becomes corrupted or if any NVM failure occurs, odometer displays ERROR.

Possible Sources

• Communication concern
• GWM
• PCM
• IPC

• Ignition ON.

• Observe the message center display area.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Tachometer. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the IPC does not receive the engine rpm data from the PCM for more than 5 seconds, the IPC defaults the tachometer to 0 rpm.

Possible Sources

• Communication concern
• PCM
• GWM
• IPC

• Using a diagnostic scan tool, perform the IPC self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs) from the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Access the  IPC  and control the  TACH_IND (%)  PID

• NOTE: Make sure to set the scan tool to 0 rpm before beginning this step. Command the tachometer in 10% increments while monitoring the tachometer.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Tachometer. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the engine rpm data is missing for 5 seconds or less or if the IPC receives invalid engine rpm data for 5 seconds or less, the IPC defaults the tachometer to the last setting, based upon the last good message received. If the engine rpm message is missing or invalid for 5 seconds or less, the gauge can appear to momentarily freeze or become erratic.

Possible Sources

• PCM
• GWM concern
• IPC

• Ignition ON.

• Using a diagnostic scan tool, perform the PCM self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, perform the IPC self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs) from the IPC self-test.

• Access the  IPC  and control the  TACH_IND (%)  PID

• NOTE: Make sure to set the scan tool to 0 rpm before beginning this step. Command the tachometer in 10% increments while monitoring the tachometer.

• Access the  PCM  and control the  RPM (Rpm)  PID

• Set the PID to run the engine at 1,000, 1,500, 2,000 and 2,500 rpm.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Temperature Gauge. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the IPC does not receive the engine coolant temperature data message or if the engine coolant temperature data message is deemed invalid from the PCM for more than 5 seconds, the IPC defaults the temperature gauge to cold (C).

Possible Sources

• Communication concern
• PCM
• GWM
• IPC

• Using a diagnostic scan tool, perform the IPC self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs) from the IPC self-test.

• Access the  IPC  and control the  ENGCOOLNT (%)  PID

• NOTE: Make sure to set the scan tool to 0 or full cold before beginning this step. Command the temperature gauge on and off while monitoring the temperature gauge.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Temperature Gauge. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the engine coolant temperature data message is missing for 5 seconds or less or if the IPC receives invalid engine coolant temperature data for 5 seconds or less, the IPC defaults the temperature gauge to the last setting, based upon the last known good temperature status message.

Possible Sources

• Engine cooling system concern
• PCM
• GWM concern
• IPC

• Ignition ON.

• Verify the engine cooling system and thermostat are functioning correctly.

• Ignition ON.

• Using a diagnostic scan tool, perform the PCM self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, perform the IPC self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs) from the IPC self-test.

• Access the  IPC  and control the  ENGCOOLNT (%)  PID

• NOTE: Make sure to set the scan tool to 0 or full cold before beginning this step. Command the temperature gauge as follows:

  Command	Indication Range
  0% (under 38° C [100° F])	Full cold (C)
  15% (60° C [140° F])	Beginning of the normal range
  45% (823° C [180° F]-110° C [230° F])	Center of the gauge
  85% (120° C [248° F])	End of the normal range
  95% (123° C [255° F])	Hot (H) (red line)

• Start the engine.

• Access the  PCM  and control the  CHT (Deg C)  PID

• With the engine running and temperature increasing, monitor the PCM temperature PID.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See ABS Warning and ABS/Brake/Stability-Traction Control System Indication. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the ABS warning indicator request message is missing for less than 5 seconds, the IPC defaults the ABS warning indicator or RTT warning indicator to its last indication state (on or off), based upon the last message received.

If the ABS warning indicator request message is missing for 5 seconds or longer, the IPC defaults the ABS warning indicator or RTT warning indicator on.

Possible Sources

• Communication concern
• ABS
• GWM
• IPC

• Determine if the vehicle is equipped with a base or mid-level IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and the hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Access the  IPC  and control the  ABS_LAMP  PID

• Command the ABS warning indicator on then off.

• Ignition ON.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Airbag Warning. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the airbag warning indicator request message is missing for less than 5 seconds, the IPC defaults the airbag warning indicator or RTT warning indicator to its last indication state (on or off), based upon the last message received.

If the airbag warning indicator request message is missing for 5 seconds or longer, the IPC defaults the airbag warning indicator or RTT warning indicator on.

Possible Sources

• Communication concern
• SRS
• GWM
• IPC

• Determine if the vehicle is equipped with a base or mid-level IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and the hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Access the  IPC  and control the  AIRBAG_LMP  PID

• Command the airbag warning indicator on then off.

• Ignition ON.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Auto Stop-Start. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the stop-start standby indicator message is missing for less than 5 seconds, the IPC defaults the auto stop-start warning indicator or auto stop-start RTT indicator to its last indication state (on or off), based upon the last message received.

If the stop-start standby indicator message is missing for 5 seconds or longer, the IPC defaults the auto stop-start warning indicator or auto stop-start RTT warning indicator off.

Possible Sources

• Communication concern
• Message center concern
• PCM concern
• GWM concern
• IPC

• Ignition ON.

• NOTE: Refer to the Owner's Literature for message center menu navigation. Using the message center controls, verify the auto stop-start feature is enabled.

• Determine if the vehicle is equipped with a base IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and the hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Access the  IPC  and control the  W_STRTSTP_ENG  PID

• Command the auto stop-start indicator on then off.

• Ignition ON.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, perform the PCM self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Brake Warning. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the brake (red) warning indicator request or brake lamp request messages are missing or invalid for less than 5 seconds, the IPC defaults the brake warning indicator to the last indication state (on or off), based upon the last message received.

Possible Sources

• Brake fluid level switch
• Parking brake system concern
• ABS concern
• GWM concern
• IPC

Visual Inspection and Pre-checks

• Inspect the brake fluid level switch for signs of any external damage.
• Inspect the wiring harness for signs of a pinched harness causing a shorted circuit.

• Determine if the vehicle is equipped with a base or mid-level IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and the hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Ignition ON.

• Access the  IPC  and control the  PBA_LMP  PID

• Command the brake warning indicator on then off. Observe the brake warning indicator.

• Apply the parking brake while monitoring the brake warning indicator.

• Apply the parking brake.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

No	DIAGNOSE the ABS.    Click here to access Guided Routine (ABS). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

• Ignition OFF.

• Disconnect Brake Fluid Level Switch C124 .

• Ignition ON.

• Wait one minute.

• Ignition OFF.

• Disconnect and inspect the ABS module connectors.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the ABS module connectors. Make sure they seat and latch correctly.

• Operate the system and determine if the concern is still present.

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM, or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,    Click here to access Guided Routine (ABS). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Brake Warning. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the brake (red) warning indicator request, brake warning indicator request or brake lamp request messages are missing for 5 seconds longer, the IPC defaults the brake warning indicator on.

DTC Fault Trigger Conditions

Possible Sources

• Wiring, terminals or connectors
• Brake fluid level switch
• Parking brake position switch
• Communication concern
• ABS
• GWM
• BCM
• IPC

Visual Inspection and Pre-checks

• Inspect the base brake system and the parking brake system for correct operation.
• Inspect the brake fluid level switch connection and check for signs of connector terminal damage, corrosion or pushed-out pins.
• Inspect the brake fluid level switch wiring for signs of a cut or opened circuit.
• Inspect the brake fluid level switch for signs of any external damage.

• Ignition ON.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, perform the ABS module self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Check the parking brake operation while applying and releasing the parking brakes using the switch.

• Disconnect ABS module C135A .

• Disconnect Brake Fluid Level Switch C124 .

• Measure:
  Click to display connectors
  

  Positive Lead	Measurement / Action	Negative Lead
  C135A-17		C135A-19

• Ignition OFF.

• Disconnect ABS module C135A .

• Ignition ON.

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C135A-19		Ground

• Ignition OFF.

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C135A-19		Ground

• Ignition OFF.

• Disconnect Brake Fluid Level Switch C124 .

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C135A-19		C124-2

• Ignition ON.

• Measure:
  Click to display connectors
  

  Positive Lead	Measurement / Action	Negative Lead
  C124-1		Ground

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C124-1		C135A-17

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C124-1		Ground

• Measure:

  Positive Lead	Measurement / Action	Negative Lead
  C135A-19		Ground

• Ignition OFF.

• Disconnect and inspect the ABS module connectors.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the ABS module connectors. Make sure they seat and latch correctly.

• Operate the system and determine if the concern is still present.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Charging Warning. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the battery low state of charge message is missing for less than 5 seconds, the IPC defaults the charging system warning indicator or RTT warning indicator to the last indication state (on or off), based upon on the last message received.

If the battery low state of charge message is missing for 5 seconds or longer, the IPC defaults the charging system warning indicator or RTT warning indicator on.

Possible Sources

• Charging system concern (12-volt)
• Communication concern
• BCM
• DCDC (hybrid only)
• BECM (hybrid only)
• GWM
• IPC

• Determine if the vehicle is equipped with a base IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Ignition ON.

• Access the  IPC  and control the  W_CHRG  PID

• Command the charging system warning indicator on then off while observing the charging system warning indicator.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, perform the DCDC self-test.

• Using a diagnostic scan tool, perform the BECM self-test.

• Check the charging system operation.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Door, Liftgate, Hood Ajar. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If a door ajar (driver door, passenger door, left rear door, right rear door, liftgate or hood) status message is missing for less than 5 seconds, the IPC defaults the door, liftgate or hood ajar indicator or RTT indicator to the last indication state (on or off), based upon the last message received.

If a door ajar (driver door, passenger door, left rear door, right rear door, liftgate or hood) status message is missing for 5 seconds or longer, the IPC defaults the door, liftgate or hood ajar indicator or RTT indicator off.

Possible Sources

• Interior lighting concern
• Communication concern
• GWM
• BCM
• IPC

• Determine if the vehicle is equipped with a base IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the charging system RTT warning indicator.

• Start the engine.

• Monitor the charging system RTT warning indicator.

• Ignition ON.

• Access the  IPC  and control the  ALL_LAMPS  PID

• Command all warning lamps on then off while observing the door ajar warning indicator.

• Open and close each door while monitoring the interior lamps.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, perform the BCM self-test.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

NOTE: The electric park brake indicator only illuminates or flashes when a parking brake system or ABS fault is detected. The indicator is off under all other conditions.

Normal Operation and Fault Conditions

See Electric Park Brake. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the parking brake (yellow) indicator request message is missing for less than 5 seconds, the IPC defaults the electric park brake indicator or RTT indicator to the last indication state (on or off), based upon the last message received.

If the parking brake (yellow) indicator request message is missing for 5 seconds or longer, the IPC defaults the electric park brake indicator or RTT indicator off.

Possible Sources

• Communication concern
• Electric park brake concern
• GWM
• ABS module
• IPC

• Determine if the vehicle is equipped with a base IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Ignition ON.

• Access the  IPC  and control the  ALL_LAMPS  PID

• Command all warning lamps on then off while observing the electric park brake indicator.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Engine Over-Temperature Warning. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the engine coolant temperature data or engine overheat indication request messages are missing or invalid for less than 5 seconds, the IPC defaults the engine over-temperature warning indicator or RTT warning indicator to the last indication state (on or off), based upon on the last message received.

If the engine coolant temperature data or engine overheat indication request messages are missing or invalid for 5 seconds or longer, the IPC defaults the engine over-temperature warning indicator or RTT warning indicator on.

Possible Sources

• Communication concern
• GWM
• PCM
• IPC

• Determine if the vehicle is equipped with a base IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Ignition ON.

• Access the  IPC  and control the  W_OVR_TMP  PID

• Command the engine over-temperature warning indicator on then off.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, perform the PCM self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Hill Descent Control. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the hill descent control indicator request message is missing for less than 5 seconds, the IPC defaults the hill descent RTT indicator to its last indication state (on or off), based upon the last message received.

If the hill descent control indicator request message is missing for 5 seconds or longer, the IPC defaults the hill descent RTT indicator off.

Possible Sources

• Communication concern
• Message center concern
• Hill descent control system concern
• ABS concern
• GWM concern
• IPC

• Ignition ON.

• Close all doors, liftgate and hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Using a diagnostic scan tool, perform the IPC self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs) from the IPC self-test.

• Using a diagnostic scan tool, perform the ABS module self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs) from the ABS module self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See LH/RH Turn Signal, Front Fog Lamp, Rear Fog Lamp or High Beam. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the left turn lamp on request, right turn lamp on request, front fog lamp indicator request, high beam status or rear fog lamp indicator request (if equipped) message is missing for less than 5 seconds, the IPC defaults the specific indicator to its last indication state (on or off), based upon the last message received.

If the left turn lamp on request, right turn lamp on request, front fog lamp indicator request, high beam status or rear fog lamp indicator request (if equipped) message is missing for 5 seconds or longer, the IPC defaults the specific indicator off.

Possible Sources

• Turn indicator concern
• Front fog lamp concern
• High beam concern
• Rear fog lamp concern (if equipped)
• Communication concern
• BCM
• GWM
• IPC

• Ignition ON.

• Check the operation of the turn signals, fog lamps or high beams.

• Determine if the vehicle is equipped with a base or mid-level IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, perform the IPC self-test.

• Access the  IPC  and control the  ALL_LAMPS  PID

• Command the ALL_LAMPS PID on and off while observing the indicator in question on and off.
  • LH turn signal indicator
  • RH turn signal indicator
  • Front fog lamp indicator
  • High beam indicator
  • Rear fog lamp indicator (if equipped)

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Lights On. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the park lamp status message is missing for less than 5 seconds, the IPC defaults the lights on indicator or RTT indicator to its last indication state (on or off), based upon the last message received.

If the park lamp status message is missing for 5 seconds or longer, the IPC defaults the lights on indicator or RTT indicator off.

Possible Sources

• Exterior lighting concern
• Communication concern
• GWM
• BCM
• IPC

• Place the headlamp switch in the PARKLAMP position.

• Ignition ON.

• Observe the parking lamps.

• Determine if the vehicle is equipped with a base IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Access the  IPC  and control the  SIDELIGHT_LMP  PID

• Command the lights on indicator on and off while observing the indicator.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See LED Low Beam Malfunction. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the headlamp low beam out message is missing for less than 5 seconds, the IPC defaults the LED low beam malfunction RTT indicator to its last indication state (on or off), based upon the last message received.

If the headlamp low beam out message is missing for 5 seconds or longer, the IPC defaults the LED low beam malfunction RTT indicator off.

Possible Sources

• Low beam lighting concern
• Communication concern
• GWM
• BCM
• IPC

• Ignition ON.

• Check the operation of the low beam headlamps.

• Ignition ON.

• Close all doors, liftgate and hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Using a diagnostic scan tool, perform the IPC self-test.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Low Engine Oil Pressure Warning. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the engine rpm data or engine oil pressure warning indicator request message is missing less than 5 seconds, the IPC defaults the low engine oil pressure warning indicator or RTT warning indicator to the last state (on or off), based upon the last message received.

If the engine rpm data or engine oil pressure warning indicator request message is missing for 5 seconds or longer, the IPC defaults the low engine oil pressure warning indicator or RTT warning indicator on.

Possible Sources

• Wiring, terminals or connectors
• Low engine oil pressure
• GWM
• PCM
• IPC

NOTE: Make sure the engine temperature is warm or hot when performing this step.

• Ignition ON.

• Using a diagnostic scan tool, view PCM Parameter Identifications (PIDs).

• Access the  PCM  and monitor the  EOP_UR  PID

• Using a diagnostic scan tool, perform the PCM self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs).

• Determine if the vehicle is equipped with a base IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Ignition ON.

• Access the  IPC  and control the  ALL_LAMPS  PID

• Command all warning lamps on then off while observing the low engine oil pressure warning indicator.

• Start the engine.

• Verify the tachometer operates.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See Low Fuel. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

Possible Sources

• Fuel gauge concern
• IPC

• Determine if the vehicle is equipped with a base IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Ignition ON.

• Access the  IPC  and control the  W_LOW_FUEL  PID

• Command the low fuel warning indicator on then off while observing the low fuel warning indicator.

• Ignition ON.

• Verify the fuel gauge operates correctly and there are no customer concerns with the fuel gauge operation.

• Verify the fuel gauge and DTE displays.

• Ignition OFF.

• Disconnect and inspect the IPC connector.

• Repair:
  • corrosion (install new connector or terminals – clean module pins)
  • damaged or bent pins – install new terminals/pins
  • pushed-out pins – install new pins as necessary

• Reconnect the IPC connector. Make sure it seats and latches correctly.

• Operate the system and determine if the concern is still present.

Normal Operation and Fault Conditions

See MIL. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the MIL request message is missing or invalid for less than 5 seconds, the IPC defaults the MIL to its last state (on or off) based upon the last known good message received.

If the MIL request message is missing for 5 seconds or longer, the IPC defaults the MIL on.

DTC Fault Trigger Conditions

Possible Sources

• Wiring, terminals or connectors
• Instantaneous invalid sensor signal
• Engine oil pressure (EOP) sensor
• Communication concern
• GWM
• PCM
• IPC

NOTE: Make sure the engine temperature is warm or hot when performing this step.

• Ignition ON.

• Using a diagnostic scan tool, view PCM Parameter Identifications (PIDs).

• Access the  PCM  and monitor the  EOP_UR  PID

• Using a diagnostic scan tool, perform the PCM self-test.

• Check for recorded Diagnostic Trouble Codes (DTCs).

• Determine if the vehicle is equipped with a base or mid-level IPC.
  REFER to: Instrument Panel Cluster (IPC) - Overview (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
  

• Ignition ON.

• Close all doors, liftgate and hood.

• Clear all message center warnings by pressing the OK button for each warning present.

• Monitor the door ajar RTT warning indicator.

• Open the driver door.

• Clear the message center popup warning.

• Monitor the door ajar RTT warning indicator.

• Access the  IPC  and control the  TRANSA_LMP  PID

• Command the MIL on and off.

• Ignition ON.

• Using a diagnostic scan tool, perform the IPC self-test.

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

• Ignition OFF.

• Disconnect Engine Oil Pressure Sensor C1652 (2.3L), C1636 (3.0L) or C1657 (3.3L) .

• Ignition ON.

• Measure:
  Click to display connectors

    2.3L

  
  

  Positive Lead	Measurement / Action	Negative Lead
  C1652-3		C1652-2

  
  Click to display connectors

    3.0L

  
  

  Positive Lead	Measurement / Action	Negative Lead
  C1636-3		C1636-2

  
  Click to display connectors

    3.3L

  
  

  Positive Lead	Measurement / Action	Negative Lead
  C1657-3		C1657-2

• Ignition OFF.

• Disconnect PCM C1381E (2.3L), C1551E (3.0L) or C175E (3.3L) .

• Ignition ON.

• Measure:
  Click to display connectors

    2.3L

  
  

  Positive Lead	Measurement / Action	Negative Lead
  C1381E-21		Ground

  
  Click to display connectors

    3.0L

  
  

  Positive Lead	Measurement / Action	Negative Lead
  C1551E-69		Ground

  
  Click to display connectors

    3.3L

  
  

  Positive Lead	Measurement / Action	Negative Lead
  C175E-69		Ground