Engine Control Module (J623)

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 -.






ECM with AntiTheft Protection






- Disconnect the threaded connections - 2 -.

- Remove the locking mechanism - 5 -.

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

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

ECM without Anti-Theft Protection






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

Continuation for all Vehicles

- 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.






ECM with Anti-Theft Protection






- Attach the bracket - 5 - to the ECM with the screws - 6 -.

• Tightening specifications: 9 Nm

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

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

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

ECM without Anti-Theft Protection

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

Continuation for all Vehicles






- Install the E-box cover - arrows -.