Communication System A
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.
- CHECK BCM
Replace the BCM with a known-good one, and carry out the communication diagnosis. Refer to IVMS COMMUNICATION DIAGNOSIS .
OK or NG
- OK: The harness and connector is checked, and it is normal, replace BCM.
- NG: GO TO 2.
- CHECK LCU
- Replace with the previously installed BCM.
- Replace the LCU with a known-good one, and carry out the communication diagnosis. Refer to IVMS COMMUNICATION DIAGNOSIS .
OK or NG
- OK: The harness and connector is checked, and it is normal, replace LCU.
- NG: Repair or replace harness between the LCU and BCM.