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Communication System B

WARNING: This page is about a different car, the 2004 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 the malfunctioning LCU for disconnection, bend, and other malfunctions.

    OK or NG 

    1. OK: GO TO 2.
    2. NG: Repair terminals and connections.
  2. LCU INSPECTION

    Replace the LCU with a known-good one, and perform the communication diagnosis.

    Refer to IVMS COMMUNICATION INSPECTION  (with CONSULT-II) or COMMUNICATION DIAGNOSIS  (without CONSULT-II).

    OK or NG 

    1. OK: Replace LCU.
    2. NG: Repair communication harness between the indicated LCU and BCM.
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