Lancer Sportback L4-2.4L (4B12) (2010)
Engine Control Module: Removal and Replacement
ENGINE CONTROL MODULE (ECM)
REMOVAL AND INSTALLATION
CAUTION:
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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) See: Body and Frame/Body Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/ID
Codes Registration Judgment Table [Vehicle with KOS installed] or (Refer to Diagnosis - ID Codes Registration Judgment Table) See:
Body and Frame/Body Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/ID Codes Registration Judgment
Table [Vehicle with WCM installed].
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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.
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After the replacement of the ECM, register a key code using scan tool.
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When the ECM is replaced, saved the vehicle identification number and perform the variant coding.
Pre-removal And Post-installation Operation
Removal Steps 1-8
REMOVAL SERVICE POINT
[[A]] BREAK-OFF BOLTS REMOVAL [VEHICLES FOR CANADA]