Engine Control Module: Service and Repair

Engine Control Module (ECM) Removal and Installation

CAUTION: As ECM consists of precision parts, be careful not to expose it to excessive shock.

NOTE:
If ECM is replaced with new one (VIN data is still not registered.) or with used one (VIN data of other vehicle has been registered previously.), make sure that reregister VIN data correctly by performing VIN Registration.
Otherwise, MIL remains on even if the engine started or it causes the inconsistency between registered VIN data in ECM and actual VIN.

Removal
1. Disconnect battery negative cable from battery.
2. Disable air bag system (if equipped) referring to Disabling Air Bag System.




3. Remove ECM cover (1) from bracket.
4. Disconnect connectors from ECM (1)




5. Remove ECM (1) with bracket (2)

Installation
1. Install ECM with bracket onto vehicle.
2. Connect connectors to ECM securely.
3. Install ECM cover onto bracket.
4. Enable air bag system (if equipped) referring to Enabling Air Bag System.
5. Connect negative cable to battery.