FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Initial Inspection and Diagnostic Overview

ON-BOARD DIAGNOSTICS

The CAN is a communication method which the ECUs use in order to communicate each other. The CAN-related diagnostic trouble codes will be stored in the following ECUs, which use the CAN communication.
- ETACS-ECU
- ECM
- TCM
- ABS-ECU or ASC-ECU
- AWD-ECU
- Steering wheel sensor
- A/C-ECU
- SRS-ECU
- Occupant classification-ECU
- Hands free module
- Radio and CD player or CD changer or CAN box unit
- Satellite radio tuner
- WCM or KOS-ECU
- Combination meter