U0231
Lost Communication With Rain Sensing Module
U0231 is an OBD-II diagnostic trouble code meaning: Lost Communication With Rain Sensing Module. Common causes: open or short circuit in the rain sensor circuit, rain sensor module malfunction. Estimated repair cost: $56–167.
Symptoms
- Automatic wipers do not turn on when it rains
- Check Engine Light or Other Dashboard Warning Light
- Even in heavy rain, the wipers do not respond automatically
- Possible errors in other related systems
Causes
- Open or short circuit in the rain sensor circuit
- Rain sensor module malfunction
- Connector problems or contact corrosion
- Main control unit malfunction
- Wiring Harness Problems
How to Fix
- Check the continuity of the rain sensor circuit
- Inspect connectors and contacts for corrosion or damage
- Check the power supply and ground of the rain sensor
- Test or replace the rain sensor module
- Scan the system for other errors
Related codes
Error U0231 by Vehicle Brand
FAQ
What does the U0231 code mean?
U0231 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Rain Sensing Module
What causes a U0231 error code?
The most common causes of U0231 include: Open or short circuit in the rain sensor circuit; Rain sensor module malfunction; Connector problems or contact corrosion; Main control unit malfunction.
How do I fix a U0231 diagnostic trouble code?
To fix U0231: Check the continuity of the rain sensor circuit. Inspect connectors and contacts for corrosion or damage. Check the power supply and ground of the rain sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0231?
Yes, but get it checked soon
How much does it cost to fix U0231?
The estimated repair cost for U0231 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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