Steering Mounted Controls Communication Module: Description and Operation
Steering Column Switch Overview
• The following components of the steering column switch cannot be disassembled:
• Left trim of steering column switch.
• Steering Wheel Tiptronic Switch (E389) at left.
• Bracket.
• Bracket.
• Multi-pin harness connector for Steering Wheel Tiptronic Switch (E389).
• Bracket.
• Steering Wheel Tiptronic Switch (E389) at right.
• Right trim of steering column switch.
- Tightening Specifications, refer to => [ Fastener Tightening Specifications, Steering Column Switch ] [1][2]Combination Switch.
• Also, if only one individual component of steering column switch is removed or replaced, the sequence as described in=> [ Steering Column Switch ] Steering Column Switch must always be followed.
1 - Steering Column Electronic Systems Control Module (J527)
• Removing and installing, refer to => [ Steering Column Switch ] Steering Column Switch.
• Coding, refer to => [ Steering Column Electronic Systems Control Module, Coding ] Steering Column Electronic Systems Control Module, Coding.
• Output Diagnostic Test Mode (DTM), refer to => [ Steering Column Electronic Systems Control Module, Output Diagnostic Test Mode (DTM) ] Steering Column Electronic Systems Control Module, Output Diagnostic Test Mode (DTM).
• Multi-pin connector assignment, refer to => [ Steering Column Switch Connector Assignments ] [1][2]Diagrams.
2 - Steering Column
3 - Left Trim Of Steering Column Switch
• On Steering Wheel Tiptronic Switch (E389) at left.
4 - Steering Wheel Tiptronic Switch (E389) At Left
• Removing and installing, refer to => [ Steering Column Switch ] Steering Column Switch.
• Multi-pin connector assignment, refer to => [ Steering Column Switch Connector Assignments ] [1][2]Diagrams.
5 - Bracket
• On Steering Wheel Tiptronic Switch (E389) at left.
6 - Torx(R) Bolt
• For mounting Steering Wheel Tiptronic Switch (E389) at left and right sides.
7 - Bracket
• For multi-pin harness connectors of Steering Wheel Tiptronic Switch (E389) , Airbag Spiral Spring/Return Spring With Slip Ring (F138) and Steering Angle Sensor (G85).
8 - Multi-Pin Harness Connector Steering Wheel Tiptronic Switch (E389)
• Multi-pin connector assignment, refer to => [ Steering Column Switch Connector Assignments ] [1][2]Diagrams.
9 - Bracket
• At steering wheel tiptronic switch (E389) , right.
10 - Steering Wheel Tiptronic Switch (E389) At Right
• Removing and installing, refer to => [ Steering Column Switch ] Steering Column Switch.
• Multi-pin connector assignment, refer to => [ Steering Column Switch Connector Assignments ] [1][2]Diagrams.
11 - Right Trim Of Steering Column Switch
12 - Torx(R) Bolt
• For mounting Steering Wheel Tiptronic Switch (E389) at left and right sides.
13 - Windshield Wiper Switch
• Removing and installing, refer to => [ Steering Column Switch ] Steering Column Switch.
• "Windshield wiper switch" consists of the components Windshield Wiper/Washer Switch (E22) and Windshield Wiper Intermittent Regulator (E38).
• Multi-pin connector assignment, refer to => [ Steering Column Switch Connector Assignments ] [1][2]Diagrams.
14 - Airbag Spiral Spring/Return Spring With Slip Ring (F138) and Steering Angle Sensor (G85)
• Removing and installing, refer to => [ Steering Column Switch ] Steering Column Switch.
15 - Socket Head Bolt
• For fastening steering column switch.
16 - Turn Signal Switch
• Removing and installing, refer to => [ Steering Column Switch ] Steering Column Switch.
• Depending on equipment, the "turn signal switch" consists of the Turn Signal Switch (E2) , Headlamp Dimmer/Flasher Switch (E4) , Parking Lamp Switch (E19) and Adaptive Cruise Control Button (E357).
• Multi-pin connector assignment, refer to => [ Steering Column Switch Connector Assignments ] [1][2]Diagrams.