B-CAN System Diagnosis Test Mode B NOTE:

- Because several different Tester's can be used to troubleshoot, there might be differences in what is shown on the screen and what is shown in the DTC troubleshooting flow charts in the Service Manual.
- Perform this diagnosis if any of the control units are not communicating (N/A displayed in the scan tool.) as found by the B-CAN System Diagnosis Mode A.
- Always cycle the ignition switch within 3 seconds when prompted in the DTC troubleshooting procedures in this system.

1. Using the HDS, Select the system that has the symptom from the BODY ELECTRICAL MENU.

1. Select DTCs, and then check for loss of communication DTCs (use the DTC troubleshooting index to find the DTC type).

Are the loss of communication DTCs indicated?

YES | - | Go to Step 3 .
NO | - | Replace the MICU .■

1. 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
   Climate control unit
   Combination switch control unit
   Rain sensor (With auto wiper)
   Hands free telephone control unit