What it means
The control module monitors the control circuit for A/V sensor washer fluid pump F. It sets this code when the circuit’s electrical response is outside the expected range or the pump does not respond as commanded.
At a glance
- Usually lights the airbag (SRS) or body-system warning light
How it works
The A/V sensor washer system uses pump F to send cleaning fluid to an audio/video sensor lens. The control module monitors pump F’s control circuit and sets B0134 when its electrical response is out of range or the pump fails to respond to a command.
Common causes
Most likely first.
- Failed washer fluid pump
- Open or shorted pump wiring
- Loose or corroded connector
- Blown fuse or power supply fault
- Blocked pump or washer-fluid passage
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
How to diagnose it
- Review freeze-frame data and scan for other washer or sensor codes to see whether the fault is limited to pump F.
- Check washer-fluid level, then command pump F with a scan tool if supported and verify that it runs and delivers fluid.
- Inspect pump F’s wiring and connector for damage, corrosion, looseness, or fluid intrusion.
- Test the fuse, power, ground, and control wiring for pump F against the wiring diagram and manufacturer’s specification.
- If the circuit passes, check pump F and its hose and sensor nozzle for a blockage.
Common fixes
- Refill the washer reservoir if it is low.
- Clear a blocked passage or nozzle in pump F’s fluid path.
- Repair an open, short, damaged wire, or poor connector contact at pump F.
- Replace the failed fuse after correcting its underlying cause.
- Replace pump F if it does not operate with correct power, ground, and control.
Can I keep driving?
The vehicle may be drivable, but the A/V sensor served by pump F may not be cleaned and its related assistance function may be impaired. Clean the sensor when safe and avoid depending on that feature until the washer operates properly.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.