B1431: Wiper Brake/Run Relay Circuit Failure

What does B1431 mean?

B1431 is a diagnostic trouble code indicating "Wiper Brake/Run Relay Circuit Failure". This code relates to your vehicle's wipers & washers and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Common causes

• Faulty wipers & washers component
• Wiring or connector issue in the related circuit
• Failed sensor providing incorrect readings
• Software/calibration issue requiring ECU update
• Related component causing secondary fault

What should you do?

This is a critical issue. Stop driving as soon as it is safe to do so and have the vehicle inspected immediately. Continuing to drive could cause further damage or pose a safety risk.

Get a diagnosis for YOUR car

Code B1431 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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