Network
generic / SAE
U0231
Lost Communication with Rain Sensor Module
The wiper controller has lost the rain/light sensor module. Automatic wiping and automatic headlight switching stop working; the driver has to operate them manually.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number2 / 31
Possible causes
- Rain sensor failed high
- LIN wire to sensor open medium
- Gateway module routing CAN messages incorrectly low
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 40–250 €
- Estimated time: 0.3–1.5 h
- Component: rain light sensor
- Component: lin wiring
Sources
References
sae:J2012