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Inspection and Verification

NOTE: The instrument cluster and FEM must be configured upon installation. Refer to MODULE CONFIGURATION .
  1. Verify the customer concern.
  2. Visually inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Instrument panel dimmer switch
    • Central junction box (CJB) fuse 33 (10A)
    • Bulb(s)
    • Connectors
    • CJB
    • Interior auxiliary junction box
    • Joint connector 3
    • Instrument cluster
    • Front electronic module (FEM)
    • Instrument panel dimmer switch
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  4. If the cause is not visually evident, connect the diagnostic tool to the data link connector and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
    • Check that the program card is correctly installed.
    • Check the connections to the vehicle.
    • Check the ignition switch position.
  5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
  6. Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
    • SCP circuit fault; all electronic control units no response/not equipped, refer to MODULE COMMUNICATIONS NETWORK .
    • No response/not equipped for the FEM, refer to MULTIFUNCTION ELECTRONIC MODULES .
    • No response/not equipped for the instrument cluster, refer to INSTRUMENT CLUSTER .
    • System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs, and carry out the self-test diagnostics for the instrument cluster.
  7. If the DTCs retrieved are related to the concern, refer to the INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
  8. If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .
    INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) INDEX

    DTC Description Source Action
    B1246 Dim Panel Potentiometer Switch Circuit Failure Instrument Cluster Go To PINPOINT TEST E .
    B1342 ECU is Defective Instrument Cluster DOCUMENT and CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is received again, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER .
    B2477 Module Configuration Failure Instrument Cluster REFER to MODULE CONFIGURATION .
    All Other DTCs - Instrument Cluster REFER to MULTIFUNCTION ELECTRONIC MODULES .
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