Initial Inspection and Diagnostic Overview

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.

HS-CAN
- PCM
- TCM
- DSC HU/CM
- AWD control module
- BCM
- SAS control module
- Keyless control module
- Instrument cluster

MS-CAN
- Instrument cluster
- Audio amplifier
- Climate control unit
- Audio unit (base unit)
- Information display
- HF/TEL unit
- SIRIUS satellite radio unit

Flowchart

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

Step 1-Step 2:

Step 3-Step 6:

Step 7:

Step 8-Step 12:

Step 13-Step 14:

MS-CAN

Step 1-Step 4:

Step 5-Step 6:

Step 7:

Step 8-Step 12:

Step 13-Step 14: