Control module for Diesel-Direct Fuel Injection System, replacing

Work procedure 

Check control module identification of the previous control module for Diesel-Direct fuel injection system as follows:

• Connect diagnostic tester. Refer to Diagnostic tester, connecting  .
• Switch ignition on.
• Under address word 33, select "Diagnostic mode 9: vehicle information".
• Select the vehicle information "Test-ID 04: Calibration Identification".

Control module identification will be indicated, e.g.:

3B0907551CG 0001

• End diagnosis and switch ignition off.
• Remove wiper arms and wind cowl.
• Disengage connector from control module and then remove the connector.

Fig 1: Control Module Mounting Bracket

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Press mounting bracket (arrow) toward left and pull control module out.
• Insert the new control module into the mounting frame.
• Install connector from control module and engage.
• Check whether new control module identification matches old control module identification.

• Generate readiness code.