Engine Control Module (ECM)

ENGINE CONTROL MODULE (ECM)

REMOVAL AND INSTALLATION

CAUTION:
- When the ECM is replaced, do not replace the immobilizer ECU (WCM) or KOS-ECU simultaneously. When multiple ECUs are to be replaced, always replace only one ECU at a time and complete necessary ID registration using scan tool (Refer to Diagnosis -ID Codes Registration Judgment Table) ID Codes Registration Judgment Table [Vehicle with KOS installed] or (Refer to Diagnosis -ID Codes Registration Judgment Table) ID Codes Registration Judgment Table [Vehicle with WCM installed.]
- After the 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 replacement of the ECM, register a key code using scan tool.
- When the ECM is replaced, save the vehicle identification number and perform the variant coding. Refer to the scan tool (M.U.T.-III) operation manual, and perform coding.
- When the 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" position and then to "LOCK" (OFF) position and hold it for at least 10 seconds.