B1466: Wiper Hi/Low Speed Not Switching
MediumBodyWipers & Washers
What does B1466 mean?
B1466 is a diagnostic trouble code indicating "Wiper Hi/Low Speed Not Switching". 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.
Symptoms you may notice
- Check engine light (MIL) illuminated on dashboard
- Possible issues with wipers & washers operation
- Vehicle may enter reduced power mode (limp mode)
Estimated repair cost
Typical range in Australia (parts + labour)
$100 – $600 AUD
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 code sits in the body control module or something wired through it. That module runs the unglamorous things you only miss when they stop: headlights, wipers, indicators, central locking. The car will usually drive, but check what has actually stopped working before you rely on it at night or in the wet.
Get a diagnosis for YOUR car
Code B1466 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.