Clockspring Assembly / Spiral Cable: Service and Repair
WM 695419 Removing and installing the contact unit
Tools
Preliminary work
Preliminary work for contact unit
Remove driver's airbag unit. => Removing and installing driver's airbag unit - removing
Remove steering wheel. -> 481019 Removing and installing steering wheel - removing 481019 Removing and installing steering wheel
Remove steering column trim. -> 481019 Removing and installing steering wheel - removing 481019 Removing and installing steering wheel
Remove and disassemble steering column switch. => Removing and installing steering column switch - removing
General warning notes
General warnings for contact unit
CAUTION
Danger of injury and material damage if airbag units are not handled correctly!
- Incorrect triggering of airbag unit!
-> Always observe the safety regulations for handling airbag units! => Safety regulations for handling airbag and belt tensioner units
WARNING
If the contact unit has been adjusted, proceed in accordance with the following work instruction:
- Damage to the contact unit!
-> To position the airbag contact unit in the central position, press the locking element and turn the rotor carefully to the left as far as it will go.
-> Then turn the rotor carefully to the right, approx. 3.5 to 3.75 revolutions, until the band printed on one side is visible in the window.
Removing contact unit for airbag
Information
Ensure that arrow -A- of the rotor is positioned between the markings -B- of the arrows -C- of the airbag contact unit and that the locking element -D- is engaged.
Marking the contact unit
1. Carefully lift up the three retaining tabs and remove airbag contact unit.
Airbag contact unit
Installing contact unit for airbag
1. Position airbag contact unit and press onto the steering column switch until the three tabs engage.
Airbag contact unit
2. Calibrate steering angle sensor. -> 695419 Removing and installing contact unit - calibrating
Reworking
Work in wake of airbag contact unit
Install steering column switch. => Removing and installing steering column switch - installing
Install steering column trim. -> 481319 Removing and installing trim - installing 481319 Removing and installing trim panel (steering-column switch)
Install steering wheel. -> 481019 Removing and installing steering wheel - installing 481019 Removing and installing steering wheel
Install driver's airbag unit. => Removing and installing driver's airbag unit - installing
Calibrating steering-angle sensor
Information
- The steering-angle sensor must be re-calibrated after replacing the airbag contact unit.
- To correctly calibrate the angle sensor, the vehicle must be on the measuring platform.
- The steering angle sensor must be calibrated using the menu with the PIWIS Tester 9718 under the specified test conditions:
- Running gear set according to Porsche specifications => Adjusting values for suspension alignment
- Wheels in straight-ahead position and steering wheel horizontal.
- In the straight-ahead position, the steering wheel may depart from the horizontal position (steering centre position) by +/- 2.0° max.
1. PIWIS Tester 9718 must be connected to the vehicle. Start the System Tester. Switch on ignition and press >> to continue.
2. Select vehicle type and press >> to continue.
3. Select control unit PSM and confirm with >>.
4. Actual values must be selected and confirmed with >>.
5. Security code must be selected and confirmed with >>.
6. Security code must be written down. Press << to return to the Function selection.
7. Calibration must be selected and confirmed with >>.
8. Security code must be entered and confirmed with >>.
9. Security code must be confirmed with F7.
10. Steering angle sensor must be selected and confirmed with >>.
11. Safety instructions must be read and confirmed using F7.
12. After successful calibration, the stored fault code is erased from the fault memory. The PSM indicator light in the instrument cluster goes out.
13. Read out the fault memory and, if necessary, erase it and read it again.