Engine Control Module (ECM)

ENGINE CONTROL MODULE (ECM)

REMOVAL AND INSTALLATION

CAUTION:
- When replacing the engine control module (ECM), do not replace the immobilizer-ECU (WCM) or KOS-ECU at the same time with ECM. When replacing multiple ECUs, always replace only one ECU at a time and complete necessary ID registration using the scan tool.
- After the engine control module (ECM) replacement, idling speed may be unstable because the MFI engine learning is not completed. To make it stable, let the system learn the idling.
- After the engine control module (ECM) replacement, register a key code using the scan tool.
- When the engine control module (ECM) is replaced, save the vehicle identification number and perform the variant coding.
- When the engine control module (ECM) is replaced, the initial learning value of timing chain elongation amount must be stored and written by using the scan tool.

Pre-removal And Post-installation Operation:

Removal Steps 1-8 (Part 1):

Removal Steps 1-8 (Part 2):

REMOVAL SERVICE POINT

[[A]] BREAK-OFF BOLTS REMOVAL [VEHICLES FOR CANADA]







1. Drill in the break-off bolt a hole deep enough for the tap to stand.
2. Remove the break-off bolt with a left-hand tap.

INSTALLATION SERVICE POINTS

]]A[[ BREAK-OFF BOLTS INSTALLATION [VEHICLES FOR CANADA]
Tighten until the head of break-off bolt is broken off.

]]B[[ INITIALIZATION OPERATION
Turn the ignition switch to the "ON" and then to "LOCK" (OFF) position and hold it for at least 10 seconds.