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

Initial Inspection and Diagnostic Overview

DIAGNOSTIC TROUBLE CODE DIAGNOSIS

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 [CVT]
- Transaxle assembly (TC-SST-ECU) [RALLIART]
- Steering wheel sensor [vehicles with ASC-ECU]
- ABS-ECU [(vehicles with ABS (Except vehicles with ASC)]
- ASC-ECU [(vehicles with ASC)]
- AWC-ECU [RALLIART]
- Shift lever [RALLIART]
- A/C-ECU [vehicles with A/C]
- Heater control unit [vehicles without A/C]
- SRS-ECU
- Occupant classification-ECU
- Hands free module [vehicles with hands free system]
- Radio and CD player or CD changer [vehicles without Mitsubishi Multi-Communication System (MMCS)]
- CAN box unit [vehicles with Mitsubishi Multi-Communication System (MMCS)]
- Satellite radio tuner [vehicles with satellite radio]
- WCM [vehicles without KOS]
- KOS-ECU [vehicles with KOS]
- Combination meter