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/RSC HU/CM
- BCM
- AWD control module
- PLG control module
- SAS control module
- Keyless control module
- Instrument cluster
- BSM control module (LH)
- BSM control module (RH)

MS-CAN
- Audio unit (Base module)
- Car-navigation unit
- Audio amplifier
- SIRIUS satellite radio unit
- RES unit
- Bluetooth unit
- Instrument cluster
- Information display

Flowchart (HS-CAN)

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