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 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.
   MICU SPECIFICATION
   
   

   Unit not communicating
   MICU
   Gauge control module (see GAUGE CONTROL MODULE (TACH) INPUT TEST )
   Immobilizer-keyless control unit (see IMMOBILIZER-KEYLESS CONTROL UNIT INPUT TEST )
   Climate control unit (see CLIMATE CONTROL UNIT INPUTS AND OUTPUTS )