MOTRONIC Engine Control Module, Replacing

Removing

Special tools and workshop equipment required

Heat gun.

NOTE:

When the Motronic Engine Control Module (ECM) -J220- electrical harness connectors are disconnected, the adaptation values are erased and the DTC memory content remains intact.

Work procedure

Check the identification of the previous Motronic Engine Control Module (ECM) -J220- 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

-- Switch the ignition on.

-- Actuate the touch-wipe function to allow the wipers to move to the end position.

NOTE:

The wiper arms will now move into the line of view on the windshield (service position).

-- Remove the wiper arms caps.

-- Loosen the wiper arm nuts -arrows- several turns.

Fig 1: Identifying Wiper Arm Nuts

Courtesy of AUDI OF AMERICA, LLC

-- Loosen the wiper arms from the wiper axle by rocking slightly.

-- Remove the wiper arms nuts and the wiper arms from the wiper axles.

-- Remove the spray nozzles -arrow-.

Fig 2: Identifying Spray Nozzle, Removal

Courtesy of AUDI OF AMERICA, LLC

-- Press the spray nozzles, with the water lines attached, through the plenum chamber opening.

-- Remove the rubber seal -1- and the plenum chamber cover -2-.

Fig 3: Plenum Chamber Cover And Rubber Seal

Courtesy of AUDI OF AMERICA, LLC

NOTE:

The threads of the shear bolts have been coated with a locking compound and must be heated to be removed.

The Motronic Engine Control Module (ECM) -J220- is secured via a protective housing -1- and shear bolts -2-

Fig 4: Identifying Protective Housing & Shear Bolts

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

To prevent damage (burning) to the wiring and harness connections, insulation and the electronic control module, perform the following work steps exactly! Observe operating instructions for the heat gun.

WARNING:

The heat gun, shear bolts, and parts of the protective housing will become extremely hot. Use extreme caution when working with or handling these parts to avoid personal injury.

-- Using a Heat gun set at its lowest setting, heat the shear bolt for approx. 20 to 25 seconds.

-- Remove the shear bolt with locking pliers. Discard the used shear bolts.

Repeat the previous steps for the second shear bolt.

-- Remove the protective housing from the Motronic Engine Control Module (ECM) -J220-.

-- Remove the front electrical harness connector -1- from the Motronic Engine Control Module (ECM) -J220-.

-- Remove the Motronic Engine Control Module (ECM) -J220- from the retainer -arrow-.

Fig 5: Identifying Engine Control Module Bracket: Version 2

Courtesy of AUDI OF AMERICA, LLC

-- Remove the rear electrical harness connector from the Motronic Engine Control Module (ECM) -J220-.

Motronic Engine Control Module (ECM) -J220- installation

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

The Motronic Engine Control Module (ECM) -J220- must be installed with the protective housing.

Use New shear bolts when installing the Motronic Engine Control Module (ECM) -J220-.

Motronic Engine Control Module (ECM) -J220- reprogramming

-- The new Engine Control Module (ECM) -J220- and immobilizer must be activated. Refer to the Repair informationfor ECM and immobilizer activation instructions.

Final procedures

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

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

-- End of diagnosis.