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Communication System C

WARNING: This page is about a different car, the 2003 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.
  1. CONNECTOR INSPECTION 

    Check the terminals (at the control unit and harness) on BCM and LCU for disconnection, bend and other malfunctions.

    OK or NG 

    OK >> GO TO 2.

    NG >> Repair terminals and connectors.

  2. BCM INSPECTION 

    Replace the BCM with a known-good one, and perform the communication diagnosis. Refer to "IVMS COMMUNICATION INSPECTION  " (with CONSULT-II), "COMMUNICATION DIAGNOSIS  " (without CONSULT-II).

    OK or NG 

    OK >> Replace BCM

    NG >> Repair communication harness between LCU and BCM.