Coding the wiper control unit
After replacement of wiper motor and control unit, the coding must be adapted to the vehicle equipment so that the control unit knows which sensor it can find on the sensor cable.
The following equipment features can be changed
- Wiper with rain sensor
- Wiper with rain/light sensor
Note. When the coding is changed in the Modify coding menu item, the ignition must always be switched off afterwards and the key removed. After the ignition is switched on again, the new coding of the control unit is updated and the stored faults can be erased. If communication with the wiper motor control unit is not possible, the reason may be incorrect coding. Remedy: Re-code the control unit and restart the connection setup using the tester. Code control unit correctly. If the coding does not match the vehicle equipment, faults may be displayed that are not really present. The wiper motor control unit does not function without a valid coding entry.
Vehicle coding table
| Setting | Function | |
|---|---|---|
| Rain sensor | Automatic intermittent wiper operation | |
| Rain/light sensor | Automatic intermittent wiper operation and headlight control |