Communication System A

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

OK or NG? 

1. YES >> Replace BCM.
2. NO >> GO TO 2.

1. Replace with the BCM.
2. Replace the LCU with a known-good one, and perform the communication diagnosis. Refer to "IVMS COMMUNICATION INSPECTION  ".

OK or NG? 

1. YES >> Replace LCU.
2. NO >> Repair or replace harness.