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The Analog Temperature Gauge Is Inoperative

  1. 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? 

    1. Yes  : Refer to ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID) (SECTION 0) . Refer to the appropriate Engine Mechanical article for the procedure.
    2. No  : GO to J2 
  2. 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? 

    1. Yes  : REFER to DTC Chart: IPC .
    2. No  : GO to J3 
  3. 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? 

    1. Yes  : REFER to: COMMUNICATIONS NETWORK .
    2. No  : GO to J4 
  4. 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)? 

    1. 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 Mechanical article for the procedure.

    2. No  : INSTALL a new IPC  .

      REFER to: INSTRUMENT PANEL CLUSTER (IPC)  .

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