Steering column switch center (SZL)
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The steering column switch cluster (SZL) features one steering column switch each on the left and right sides. The right-hand steering column switch controls the functions of the wash/wipe system. The steering column switch on the left side of the steering column controls the high-beam headlight and turn indicators as well as operation of the on-board computer.
The signals are made available by the steering column switch cluster (SZL) via the FlexRay. The signals of the integrated steering angle sensor are also transmitted to the Integrated Chassis Management (ICM) via the FlexRay.
For the exterior lights the footwell module (FRM) receives the following commands from the steering column switch cluster (SZL):
- Turn indicator light
- Parking light
- High-beam headlight
- Headlight flasher
- High-beam assistant
- Headlight courtesy delay feature
| Item | Explanation |
|---|---|
| 1 | Turn signal/high beam switch |
| 2 | Plug connection to the ignition squibs of the airbag |
| 3 | Plug connection for horn switch, multifunction buttons and steering wheel module |
| 4 | Wash/wipe switch |
| 5 | Plug connection, vibration actuator (voltage supply) |
| 6 | Driver |
| 7 | Steering-column switch cluster retaining pin (SZL) |