Troubleshooting - B-CAN System Diagnosis Test Mode B

Troubleshooting-B-CAN System Diagnosis Test Mode B

Perform this diagnosis if any of the control units are not communicating (Not Available is displayed in the HDS) as found by the B-CAN System Diagnosis Test Mode A.

1. Using the HDS, select the system that has the symptom from the BODY ELECTRICAL SYSTEM SELECTION MENU.
2. Select DTCs, and then check for loss of communication DTCs.

Are any loss of communication DTCs indicated?

YES - Go to step 3.

NO-Replace the MICU.

3. Perform the input test for the unit not communicating with the HDS.

Unit not communicating
MICU
Door Multiplex Control Unit
Gauge Control Module
Relay Control Module
Combination Switch Control Unit
HVAC Control Unit
Climate control Unit