Engine Control Module: Service and Repair

Engine Control Module J623

• If the Engine Control Module (ECM) is to be replaced, connect the vehicle diagnostic tester and perform "Guided Functions, Replacing Engine Control Module".

Conditions

• Ignition is turned off.

Removing

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






with Anti-Theft Protection






- Remove the shear bolts - 2 -.

- Remove the locking mechanism bracket - 5 -.

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

- Remove the shear bolts - 6 - and the lock mechanism 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






- Attach the locking mechanism bracket - 4 - to the ECM with the shear bolts - 6 -.

- Install the shear bolts until the bolt heads break off.

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

- Install the locking mechanism bracket - 5 - with the shear bolts - 6 -.

- Install the shear bolts until the bolt heads break off.

without Anti-Theft Protection

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

Continuation for All






- Install the E-box cover - arrows -.