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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can System (DTC/Circuit Diagnosis) >> Circuit Diagnosis >> MAIN LINE BETWEEN M AND 6ch CGW CIRCUIT >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) 
    1. Turn the ignition switch OFF.
    2. Disconnect the battery cable from the negative terminal.
    3. Disconnect the following harness connectors.
      • ECM
      • Combination meter
      • 6CH CAN gateway
    4. Check the continuity between the combination meter harness connector and the 6CH CAN gateway harness connector.
      Combination meter harness connector 6CH CAN gateway harness connector Continuity
      Connector No. Terminal No. Connector No. Terminal No.
      M76 40 M462 1 Existed
      39 13 Existed

    Is the inspection result normal?

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    Check CAN system type decision again.

    >>

    Error was detected in the main line between the combination meter and the 6CH CAN gateway.

    >>

    Repair the main line between the combination meter and the 6CH CAN gateway.