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Drivetrain - Poor Performance/ESP Lamp ON/DTC's Set

39 11 01

January 7, 2011

2024242





Vehicle Information

Condition

Haldex Clutch Inoperative

Poor performance and various warning lights such as ESP warning are ON.

The following entries can be logged:

^ SAE code 1324 - module for four-wheel drive, no signal/communication

^ SAE code 1324 - module for four-wheel drive, implausible signal

^ SAE code 1316 - brakes module, no signal/communication

^ SAE code 1312 - data bus drive, no signal/communication

Technical Background

Inspect the wiring harness end connector on the Haldex module for corrosion/oxidation.

Production Solution

Optimized adapter wiring loom for Haldex clutch, from chassis number: WVGBV7AX7AW003549 and WVGZZZ5NZAW083464.

Service

^ Replace the adapter harness Part No.: 5N0 971 166 and the module for Haldex clutch Part No: 0AY598554A OR 0AY598554A.

Installation instructions for Haldex adapter harness:

^ Remove the seat bench, see Repair Manual group 72 in Elsaweb.

^ Remove fuel pump cover.





^ Disconnect the plug (arrow).

^ Connect the new wiring harness with the original harness connector on the vehicle and tape connection to secure.

^ Raise and support the vehicle.

^ Disconnect the harness connector on the Haldex module.

^ Install new Haldex Control Module Part No. 0AY598554A OR 0AY598554B, see repair Manual Group 39 Rear Final Drive, Differential in ElsaWeb.





^ Release the harness retainer (arrow).

^ Carefully pull out the original Haldex wiring harness, while pulling though new harness.

^ Remove the adhesive tape.

^ Secure the harness retainer of the new wiring loom from above into the access hole.

^ Connect the remaining harness connector to the Haldex module.





Warranty





Required Parts and Tools

No Special Tools Required

Additional Information

All part and service references provided in this Technical Bulletin are subject to change and/or removal. Always check with your Parts Dept. and Repair Manuals for the latest information.