LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volkswagen >> 2012 >> Golf TDI, 4D Hatchback, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> 2.0L - Diesel Fuel Injection - Engine Code(S): CJAA >> 23 Diesel Fuel Injection >> Removal And Installation >> Engine Control Module, Without An Anti- Theft Immobilizer
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Control Module, Without An Anti- Theft Immobilizer

If replacing the Engine Control Module (ECM), then connect the vehicle diagnostic tester and perform the Guided Function "Replace Control Module".

Removing 

- Turn off the ignition.

-- Remove the windshield wiper arms. Refer to WINDSHIELD WIPER ARMS .

-- Remove the plenum chamber bulkhead. Refer to Description and Operation .

-- Push the retaining frame in the -direction of the arrow- downward and remove the ECM.

Fig 1: Identifying Direction To Push Retaining Frame
GWWN24-10551Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

- Push the retainers in the -direction of the arrows- and disconnect the connector.

Fig 2: Identifying Direction(s) To Push Retainers
GWWN24-10542Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Installing 

- Connect the connector to the ECM and push the retainers all the way in the -direction of the arrows-.

Fig 3: Identifying Connector And Retainers
GWWN24-10543Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

- Mount the ECM into the retaining frame and push it upward in the -direction of the arrow-.

Fig 4: Identifying Mounted ECM
GWWN24-10543Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Install the plenum chamber bulkhead and cover. Refer to Description and Operation .

-- Install the windshield wiper arms. Refer to WINDSHIELD WIPER ARMS .