Pinpoint Test AP: The ECO Coach Display Is Inoperative
- Normal Operation and Fault Conditions
See Eco Coach Display. REFER to: Message Center - System Operation and Component Description .
Possible Sources
- Communication concern
- PCM concern
- IPC
- AP1 VERIFY THE SPEEDOMETER OPERATION
- Observe the speedometer while operating at various speeds and stopping frequently.
Does the speedometer begin at 0 km/h (0 mph) and fully return to the 0 km/h (0 mph) position when the vehicle is stopped?
Yes GO to AP2 No GO to Pinpoint Test D - AP2 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Using a diagnostic scan tool, perform the IPC self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to Diagnostic Trouble Code (DTC) Chart . No GO to AP3 - AP3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: Controller Area Network (CAN) Module Communications Network . No DIAGNOSE all PCM Diagnostic Trouble Codes (DTCs). REFER to the Master DTC Chart.