Communication System A

Replace the malfunctioning BCM with a known-good one, and perform the communication diagnosis. Refer to "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 perform the communication diagnosis. Refer to "COMMUNICATION DIAGNOSIS  ".

OK or NG? 

1. OK >> Replace the LCU.
2. NG >> Replace the BCM.