Engine Control Module: Service and Repair

Engine Control Module (J623)

• If it is necessary to replace the Engine Control Module (ECM) , connect the vehicle diagnostic tester and perform "Replace control module".

Removing

- Turn off the ignition.

- Remove the E-box cover inside the engine compartment - arrows -.






with Anti-Theft Protection






- Remove the shear bolts - 2 -.

- Remove the bracket - 5 -.

- Disconnect the connectors - 1 and 3 - from the ECM.

If the ECM is being replaced:

- Remove the shear bolts - 6 - and the bracket - 4 -.

without Anti-Theft Protection

- Disconnect the connectors - 1 and 3 - from the ECM.

Continuation for All






- Push the tabs on the side guides - 3 - carefully toward the outside with a screwdriver - 2 -.

- Remove the ECM - 1 - from the guides - 3 -.

Installing

- Install the ECM - 1 - into the guides - 3 - until it locks.






with Anti-Theft Protection






- Install the bracket - 4 - to the ECM with new shear bolts - 6 -.

- Tighten the shear bolts - 6 - just enough until the bolt heads breaks off.

- Connect the connectors - 1 and 3 - to the ECM.

- Install the bracket - 5 - to the ECM with new shear bolts - 2 -.

- Tighten the shear bolts - 2 - just enough until the bolt heads breaks off.

without Anti-Theft Protection

- Connect the connectors - 1 and 3 - to the ECM.

Continuation for All






- Install the E-box cover - arrows -.