Lost Communication With Heated Windshield Washer Module
The U0232 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Heated Windshield Washer Module. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- easy
- Estimated cost
- $100 - $400 (parts and labor)
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
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Common Symptoms
- Heated washer fluid not warming
- Washer nozzles freezing in cold weather
- Washer fluid not dispensing in freezing temps
- Heated washer warning light on
Probable Causes (Ranked by Likelihood)
- Failed heated washer module Very High
- Heating element failure in washer tank High
- CAN bus wiring fault Moderate
- Frozen washer fluid line Low
Step-by-Step Diagnostic Procedure
-
Check washer fluid level and type
-
Test heated washer module power supply
-
Inspect washer fluid heating element
-
Scan module for fault codes
Frequently Asked Questions
Can I drive with U0232?
Yes. Use winter-rated washer fluid as an alternative.
What causes U0232?
Usually a failed heating element in the washer fluid system or module failure.
Is U0232 common?
Mainly found on European luxury vehicles with heated washer systems.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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