Steering Column Module, Multi-Function Steering Wheel (Cabriolet) Audi A4 B6

Steering Column Electronic Systems Control Module -J527

Note. Further measures after reconnecting power supply: See PROCEDURE AFTER INTERRUPTION OF VOLTAGE SUPPLY (1.8L), or PROCEDURE FOLLOWING INTERRUPTION OF VOLTAGE SUPPLY (3.0L).

General description

Steering Column Electronic Systems Control Module -J527- is part of the complete system "steering column switch module" (SCSM). For example, it receives its signals from the steering column switch.

Use VAS 5051 tester to check Steering Column Electronic Systems Control Module -J527-.

Terminal assignment at Steering Column Electronic Systems Control Module -J527- (front)

Note. The following list refers to Fig.1 .

1. Cruise control system connector - Ground (GND) - Hold - Distance - 12 V power supply - Mount/Tip function "Off" -Acceleration/Deceleration - Engaged "Off"
2. Turn signal connector - Ground (GND) - Radio remote control (special vehicles) - Alarm (special vehicles) - Not used - Headlight flasher/headlight switch - Turn signal
3. Connector for multifunction steering wheel/tiptronic/heated steering wheel 7 - Push-button "-" 8 - Multi-function steering wheel "+" - power supply 9 - Multi-function steering wheel data 10 - Heat sensor/push button "+" 11 - Multi-function steering wheel dimmer 12 - Tiptronic ground (GND) 13 - Steering wheel heating "+" 14 - Steering wheel heating "-"
4. Steering angle sensor - Light barrier 5 - Light barrier 3 - Light barrier 1 -12 V voltage supply - 5 V voltage supply - Light barrier 6 - Light barrier 4 - Light barrier 2 - Steering angle sensor Ground (GND) - Light barrier 7
5. Signal horn - Horn Ground (GND) - Horn
6. Wiper system - Ground (GND) - Wiper delay potentiometer - Trip computer - Not Used - Washer - Wipers

Multi-pin connector, 16-pin

Note. The following list refers to Fig.2 .

1. Ground (GND)
2. Terminal 30
3. Screening for CAN bus
4. Not assigned
5. Cruise Control System engages in Off position
6. Alarm (special vehicles)
7. Radio remote control (special vehicles)
8. Comfort system databus Low
9. Comfort system databus High
10. Data bus drive (screened) High
11. Data bus drive (screened) Low
12. Ignition lock terminal 75
13. Ignition lock terminal 15
14. Ignition lock S-contact
15. Ignition lock terminal 50
16. Ignition lock terminal P

Note. Further measures after reconnecting power supply: See PROCEDURE AFTER INTERRUPTION OF VOLTAGE SUPPLY (1.8L), or PROCEDURE FOLLOWING INTERRUPTION OF VOLTAGE SUPPLY (3.0L).

Function description

Six function buttons are integrated into the steering wheel for better operation of the radio system. In addition, the multifunction steering wheel is electrically heated (optional).

The electronics integrated in the steering wheel take over the transmission of the six function buttons to CAN-bus and dimming of the function buttons. On vehicles with automatic transmission, 2 additional buttons can be installed for Tiptronic shifting function. The electronics in the steering wheel cannot be replaced individually, the entire steering wheel must be replaced in case of a fault.

The multi-function steering wheel is part of the complete system "switch module-steering column (SMSC) and transmits its data to the Steering Column Electronic Systems Control Module -J527-.

Multi-function steering wheel, general overview

Note. The following list refers to Fig.3 .

1. Multi-function steering wheel With integrated control switches With steering wheel integrated electronics
2. Instrument cluster
3. Radio In center console
4. Steering Column Electronic Systems Control Module -J527- Terminal assignment of Steering Column Electronic Systems Control Module -J527-. See «TERMINAL ASSIGNMENT AT STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE -J527- (FRONT)»(/audi/a4/b6-2000-2006/remont/accessories-control-systems/#steering-column-module-multi-function-steering-wheel-cabriolet__terminal-assignment-at-steering-column-electronic) .

Removing

1. Remove driver's side airbag unit.

See appropriate air bag article in Restraints .

1. Remove bolts -3-.
2. Unplug the connector -4-.
3. Slide operating switch -1- out of airbag unit -2- toward front.

Installing

Installation is the reverse of removal, paying attention to the following

Note. When installing, make sure the connecting wires of connector -4- are reinserted into the guides.

1. Tighten bolts -3- of operating switch to 1.1 Nm.

See also:
• PROCEDURE AFTER INTERRUPTION OF VOLTAGE SUPPLY
• PROCEDURE FOLLOWING INTERRUPTION OF VOLTAGE SUPPLY
• TERMINAL ASSIGNMENT AT STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE -J527- (FRONT)