Pinpoint Test J : The Analog Temperature Gauge Is Inoperative
- J1 RETRIEVE THE RECORDED DTCS FROM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
- Ignition ON.
- Using a diagnostic scan tool, perform the PCM self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes Refer to ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID) . Refer to the appropriate Engine article for the procedure. No GO to J2 - J2 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- 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: Instrument Panel Cluster (IPC) . No GO to J3 - J3 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 J4 - J4 PERFORM THE TACHOMETER ACTIVE COMMAND USING THE SCAN TOOL
- Using a diagnostic scan tool, view the IPC Parameter Identifications (PIDs).
- Select the IPC temperature gauge (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.
Does the temperature gauge start at cold (C), move to full hot (H) and return to cold (C)?
Yes INSTALL a new GWM. REFER to: Gateway Module A (GWM) . CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test. If the temperature gauge is still inoperative, INSTALL a new PCM. Refer to the appropriate Engine article for the procedure. No Refer to IPC Hardware Testing .