Test 16: Rain Sensor Circuit
WARNING: This page is about a different car, the 1996 Mercedes-Benz E320 and 1996 Mercedes-Benz E300. However, it is still accessible from the selected car via links, so may be relevant.
Using Harness Adapter (210 589 01 63 00), connect Breakout Box (129 589 00 21 00) to combination control module, leaving connector "A" disconnected from combination control module. Measure voltage between terminals No. 3 and 73 at breakout box. If less than one volt exists, rain sensor circuit is okay at this time. If greater than one volt exists, check the following and repair as necessary:
- Check wiring.
- Check rain sensor.
- Check combination control module.