The Speedometer Is Inoperative
- E1 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Ignition ON.
- Using a diagnostic scan tool, perform the IPC self-test.
- Check for recorded Diagnostic Trouble Codes (DTCs) from the IPC self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
- Yes : REFER to DTC Chart: IPC .
- No : GO to E2
- E2 PERFORM THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE SELF-TEST
- Using a diagnostic scan tool, perform the ABS module self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
- Yes : REFER to: ANTI-LOCK BRAKE SYSTEM (ABS) AND STABILITY CONTROL .
- No : GO to E3
- E3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).
Are any Diagnostic Trouble Codes (DTCs) recorded?
- Yes : REFER to: COMMUNICATIONS NETWORK .
- No : GO to E4
- E4 PERFORM THE SPEEDOMETER ACTIVE COMMAND USING A SCAN TOOL
- Using a diagnostic scan tool, view the IPC Parameter Identifications (PIDs).
- Select the IPC speedometer (SPDOMETER) PID.
- Command the speedometer on and off while monitoring the speedometer.
Does the speed begin at 0 km/h (0 mph) move to 193 km/h (120 mph) and return to 0 km/h (0 mph)?
- Yes : DIAGNOSE all PCM Diagnostic Trouble Codes (DTCs). Refer to ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID) (SECTION 0) . Refer to the appropriate Engine Mechanical article for the procedure.
- No
: INSTALL a new IPC
.
REFER to: INSTRUMENT PANEL CLUSTER (IPC) .