Engine Control Module, Replacing

Removing 

Work procedure 

Check the identification of the previous Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) -J248- as follows:

-- Connect the scan tool.

-- Switch the ignition on.

-- Using the scan tool, select "Vehicle information".

-- Select " Calibration Identification" in vehicle information.

The electronic control module identification number will be displayed, e.g. 06A906032NA 4983

-- Record the electronic control module identification number.

-- End diagnosis and switch the ignition off.

Procedure 

-- Remove the wiper arms.

-- Remove the plenum chamber cover.

-- Remove the mounting screws.

-- Remove the Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) -J248-.

-- Disconnect the Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) -J248- electrical harness connector.

Installation 

Installation is performed in reverse order of removal. Note the following:

Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) -J248- reprogramming

-- The new Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) -J248- and immobilizer must be activated.

Final procedures 

After the repair work, the following work steps must be performed in the following sequence:

1. Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY .
2. If necessary, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
3. If the DTC memory was erased, generate readiness code. Refer to READINESS CODE .