B1479
Wiper Washer Fluid Level Sensor Circuit Failure
Severity
✅ LowCan you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)
Symptoms
- The washer fluid low level indicator is on even if the reservoir is full
- No low fluid level warning
- Windshield washer system malfunction
Causes
- Open or short circuit in the liquid level sensor circuit
- Liquid level sensor malfunction
- Corrosion or poor contact in connectors
- Wiring harness damage
- ECU malfunction (rare)
How to Fix
- Check the fluid level in the washer reservoir
- Inspect the liquid level sensor and its connection
- Check the continuity of the sensor circuit using a multimeter
- Check for corrosion or damage in connectors
- If necessary, replace the sensor or repair the wiring harness
- Reset the error code and check if it returns