Information Bus: Testing and Inspection

MULTIPLEX COMMUNICATION SYSTEM [MULTIPLEX COMMUNICATION SYSTEM]

Outline

- If the controller area network (CAN) system is malfunctioning, read the DTCs of the following modules, using the M-MDS to determine the malfunctioning system.

- PCM
- TCM (ATX)
- EHPAS control module
- ABS HU/CM (with ABS)
- DSC HU/CM (with DSC)
- Instrument cluster
- Information display
- HF/TEL unit (with HF/TEL system)
- Climate control unit (with full-auto air conditioner)
- Audio unit (base unit) (with audio unit)
- Car-navigation unit (with car-navigation unit)
- BCM

Flowchart

- Use the following flowchart to verify the cause of the trouble.

Step 1-Step 6:

Step 7:

Step 8-Step 13:

Step 14:

Step 15: