Steering Column Electronic Systems Control Module, Front Terminal Assignments
Steering Column Switch Module
CAUTION!
Before beginning repairs on the electrical system:
• Obtain the anti-theft radio security code.
• Switch the ignition off.
• Disconnect the battery Ground (GND) strap.
• After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Information and/or Owner's Manual.
• Steps after reconnecting voltage supply => Battery.
General Information
Steering column switch module (SCSM) is composed of return ring with slip ring, Steering Angle Sensor (G85), steering column switch (signal switch, wiper switch, cruise control switch) and Steering Column Electronic Systems Control Module (J527).
Use tester (VAS5051) to check Steering Column Electronic Systems Control Module (J527).
Steering Column Electronic Systems Control Module, Front Terminal Assignments
A - Cruise control system harness connector
1. Ground (GND)
2. Set
3. Distance
4. 12 V voltage supply
5. Mount/Tip function "Off"
6. Acceleration/Deceleration
7. Engaged "Off"
B - Turn signal harness connector
1. Ground (GND)
2. Radio remote control (special vehicles)
3. Alarm (special vehicles)
4. Not occupied
5. Flasher/light change-over
6. Blinking
C - Harness connector of multi-function steering wheel/Tiptronic/heated steering wheel
1. Tip-"-"
2. Multi-function steering wheel "+"- voltage supply
3. Multi-function steering wheel data
4. Sensor heater/tip-"+"
5. Multi-function steering wheel dimmer
6. Tiptronic Ground (GND)
7. Steering wheel heater "+"
8. Steering wheel heater "-"
D - Steering angle sensor
1. 1 - Light barrier 5
2. 2 - Light barrier 3
3. 3 - Light barrier 1
4. 4 - 12 V voltage supply
5. 5 - 5 V voltage supply
6. 6 - Light barrier 6
7. 7 - Light barrier 4
8. 8 - Light barrier 2
9. 9 - Steering angle sensor Ground (GND)
10. 10 - Light barrier 7
E - Signal horn
1. 1 - Horn Ground (GND)
2. 2 - Horn
F - Wiper system
1. 1 - Ground (GND)
2. 2 - Interval-potentiometer
3. 3 - Board computer
4. 4 - Not occupied
5. 5 - Washing
6. 6 - Wiping