Windshield Washer Pump Circuit Malfunction
What does B1112 mean?
The B1112 code means the vehicle's onboard diagnostic system has detected: Windshield Washer Pump Circuit Malfunction. This is a low severity code.
Common Symptoms
- Washer fluid does not spray when activated
- Washer pump motor does not run
- Weak or no fluid spray from nozzles
- Washer fluid warning light on
- Clicking sound from washer pump area
Probable Causes (Ranked by Likelihood)
- Failed windshield washer pump motor Very High
- Clogged washer fluid nozzles High
- Empty washer fluid reservoir High
- Disconnected or split washer fluid hose Moderate
- Blown washer pump fuse Low
Step-by-Step Diagnostic Procedure
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Check washer fluid level in reservoir
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Listen for pump motor running when washer is activated
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Check washer pump fuse
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Test voltage at washer pump connector
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Inspect washer hoses for leaks or disconnections
Frequently Asked Questions
Can I unclog washer nozzles myself?
Yes. Use a thin needle or pin to clear the nozzle opening. You can also use compressed air to blow through the nozzle from the outside to dislodge debris.
Where is the washer pump located?
The washer pump is usually mounted on or inside the washer fluid reservoir, which is located in the engine bay. It is a small electric motor with a hose fitting.
Can using water instead of washer fluid damage the pump?
Plain water can freeze in cold weather and damage the pump and lines. It also does not clean as effectively. Always use washer fluid rated for your climate.