Pinpoint Test L: The Analog Transmission Temperature Gauge Is Inoperative
- L1 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 in this article. Refer to DTC Chart: Instrument Panel Cluster (IPC) . No GO to L2 - L2 PERFORM THE TCM (TRANSMISSION CONTROL MODULE) SELF-TEST
- Using a diagnostic scan tool, perform the TCM self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes Refer to: DTC Chart and Pinpoint Tests - 3.5L EcoBoost (272kW/370PS) . No GO to L3 - L3 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: Communications Network . No GO to L4 - L4 PERFORM THE TRANSMISSION TEMPERATURE GAUGE ACTIVE COMMAND USING THE DIAGNOSTIC SCAN TOOL
- Using a diagnostic scan tool, view the IPC Parameter Identifications (PIDs).
- Access the IPC and control the TRANS_TEMP (Deg C) PID
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NOTE: Make sure to set the scan tool to 0 or full cold before beginning this step.
Command the transmission temperature gauge on and off while monitoring the transmission temperature gauge.
Does the transmission temperature gauge start at cold (C), move to full hot (H) and return to cold (C)?
Yes INSTALL a new TCM. No A guided routine is not applicable for this vehicle and market. Replace the component that was faulted through diagnosis.