How to Troubleshoot the B-CAN System
  1. After 5 to 10 seconds, the DTCs which have been detected and stored individually by various B-CAN unit, will be indicates one by one on the multi-information display (MID) if the communication line between the MICU and the gauge control module (tach) is OK.
The unit that has been stored the code can be identified by the number shown.
Unit Code
Unit
10
MICU
50
Gauge control module (tach)
51
Climate control unit

NOTE: Also you can check the F-CAN and B-CAN communication status by following methods:
  • The MICU self-diagnostic function Test Mode 1 and Test Mode 2 can check some communication status and some switch circuits.
  • The gauge control module (tach) self-diagnostic function can check the communication status.