Communication System A

Replace the BCM with a known-good one, and carry out the communication diagnosis. Refer to "IVMS COMMUNICATION DIAGNOSIS  ".

OK or NG? 

1. OK >> Replace the BCM
2. NG >> GO TO 2.

1. Replace with the previously installed BCM.
2. Replace the LCU with a known-good one, and carry out the communication diagnosis. Refer to "IVMS COMMUNICATION DIAGNOSIS  ".

OK or NG? 

1. OK >> Replace the LCU
2. NG >> Repair or replace communication harness between the LCU and BCM.