Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2012S4 QUATTRO SEDAN (8K2) V6-3.0L SC (CCBA)REPAIR AND DIAGNOSISSTEERING AND SUSPENSIONSTEERINGSTEERING COLUMNSTEERING COLUMN CONTROL MODULESERVICE AND REPAIR
2012 Audi S4 Quattro Sedan (8K2) V6-3.0L SC (CCBA)
Steering Column Control Module: Service and Repair
2012 Audi S4 Quattro Sedan (8K2) V6-3.0L SC (CCBA)SECTION Service and Repair
Electronic Steering Column Lock Control Module (J764)
Removing
Note the following before removing the steering column:
Create a sketch showing the:
• Routing of the electrical wiring harnesses,
• Securing the electrical wiring harnesses,
• Cable tie locations.
This especially applies to the wiring harness to the electronic steering column lock control module (J764).
Note the following before installing the steering column:
• Route the electrical wiring harnesses exactly the way they were before removal.
• Secure the electrical wiring harnesses exactly the way they were before removal.
• Install all the cable ties that were loosened or cut in the same locations when installing the steering column.
• Make sure the wiring harness to the electronic steering column lock control module (J764) is not pinched and does not come into contact with sharp edges when adjusting the steering column.
Only the following steering column components need to be removed to replace the electronic steering column lock control module :
• Driver airbag
• Steering wheel, refer to => [ Airbag Steering Wheel ] Airbag Steering Wheel
• Steering column trim
• The required electrical wires and connectors
- Remove the steering column. Refer to => [ Steering Column ] Steering Column.
- Remove the bolt - 1 - and the electronic steering column lock control module - 2 -.
• After removing the control module, make sure no dirt or foreign objects enter the steering column.
Installing
Install in reverse order of removal. Note the following:
Tightening specification, refer to => [ Steering Column Overview ] Steering Column Overview
• If only the electronic steering column lock control module - 2 - was replaced, used the previously used control module bolt - 1 -.
• Use the bolt - 1 - that comes with the new steering column for the electronic steering column lock control module - 2 - if the steering column is being replaced.
- Insert the electronic steering column lock control module with the tab - arrow A - into the groove - arrow B - in the steering column and then push on the electronic steering column lock control module by hand.
- Once the electronic steering column lock control module - 2 - it touching the entire surface of the steering column, install the bolt - 1 - and tighten it.
- After reconnecting the connector, - 2 - make sure the wiring harness - 3 - is secured by the clip - 5 -.
If the steering column needs to be adjusted, be careful not to pinch the wiring harness - 3 - for the electronic steering column lock control module - 1 - and that it does not come in contact with any sharp edges.
- If the electronic steering column lock control module was replaced, the following work must performed in vehicle diagnostic tester. Select the program in "Guided Functions" and follow the prompts on the screen.
- If the steering angle sensor (G85) indicator lamp in the instrument cluster illuminates after replacing, correct the malfunction using "Guided Fault Finding" in the vehicle diagnostic tester. The system may need to be re-calibrated. Refer to => [ Dynamic Steering Basic Setting ] Dynamic Steering Basic Setting.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.