2. LCU Inspection

1. Replace with the previously installed BCM.
2. Replace the LCU with a known-good one, and perform the communication diagnosis.

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

OK or NG 

1. OK: Replace LCU.
2. NG: Repair or replace harness.