FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Multi-Function Steering Wheel Overview






Multifunction Steering Wheel

=> [ Multifunction Steering Wheel Overview ]

=> [ Rear Steering Column Electronic Systems Control Module Connectors ]

=> [ Front Steering Column Electronic Systems Control Module Connectors ]

Multifunction Steering Wheel Overview





1 Engine Control Module (ECM) (J623) in plenum chamber

2 Instrument Cluster

3 Telephone/Telematics Control Module (J526) in electronics box under front right seat

4 CAN-BUS, Infotainment

5 CAN Bus, Comfort

6 Radio (R) in upper center console

7 CD Changer (R41) in glove compartment

8 Multifunction Steering Wheel

Multifunction buttons, removing and installing, Refer to => [ Multifunction Steering Wheel ] Multifunction Steering Wheel

Removing and installing Tiptronic buttons, refer to => [ Tiptronic Switch ] Multifunction Steering Wheel

9 Vehicle Electrical System Control Module (J519 ) behind driver's side storage compartment (left-hand drive)/behind glove compartment (right-hand drive)

10 LIN Data Bus, Single Wire Bus

11 Steering Column Electronic Systems Control Module (J527)

Connector assignment, Refer to => [ Rear Steering Column Electronic Systems Control Module Connectors ] /=> [ Front Steering Column Electronic Systems Control Module Connectors ]

12 CAN Bus, Powertrain

Rear Steering Column Electronic Systems Control Module Connectors

16-pin multi-pin connector (T16a) black





1 Terminal 31
2 Terminal 30
5 Cruise control switched "Off"
6 Alarm (special-purpose vehicles)
7 Radio telephone (special-purpose vehicles)
8 CAN-Bus Low (comfort)
9 CAN-Bus High (comfort)
10 CAN-Bus High (powertrain)
11 CAN-Bus Low (powertrain)
12 Ignition terminal lock 75
13 Ignition lock terminal S
14 Ignition terminal lock 15
15 Ignition terminal lock 50
16 Ignition lock terminal P

Front Steering Column Electronic Systems Control Module Connectors





A - Cruise control connector

1 - Terminal 31

2 - Fix

3 - Distance

4 - Terminal 30

5 - Activation/touch control function (Off)

6 - Acceleration/deceleration

7 - Engaged (Off)

B - Turn signal indicator connector

1 - Terminal 31

2 - Radio telephone (special-purpose vehicles)

3 - Alarm (special-purpose vehicles)

5 - Headlight flasher/light control

6 - Turn signal indicators

C - Harness connector of multifunction steering wheel/Tiptronic/heated steering wheel

7 - Touch (-)

8 - Multi-function steering wheel (terminal 30)

9 - Multi-function steering wheel (data)

10 - Sensor heating/touch (+)

11 - Multi-function steering wheel (dimmer)

12 - Tiptronic Ground

13 - Steering wheel heating (+)

14 - Steering wheel heating (-)

D - Steering Angle Sensor (G85 )

1 - Light barrier 5

3 - Light barrier 1

3 - Light barrier 1

4 - Terminal 30

5 - Voltage supply (5 V)

6 - Light barrier 6

7 - Light barrier 4

8 - Light barrier 2

9 - Terminal 31

10 - Light barrier 7

E - Horn (H1)

1 - Terminal 31

2 - Horn

F - Wiper system

1 - Terminal 31

2 - Intermittent wipe potentiometer

3 - Board computer

5 - Wash

6 - Wipe