B0134 code meaning
A/V Sensor Washer Fluid F Control Circuit
What B0134 means
B0134 is the last of the six A/V sensor washer fluid circuits (B012F for A up to B0134 for F) and covers channel F. The module drives a pump or valve on this channel and reports the code when it finds an open or shorted output. Ford's US10569746B2 lets the computer decide from the measured opacity of a sensor window whether spraying is enough or a wiper must follow. Uber's US10173646B1 runs the cleaning units in an order derived from sensor condition. The KTH thesis for Scania found that changing pump output moved the wave front of fluid across a sensor fascia. Which sensor channel F supplies is not published, and no carmaker documents B0134. Until it is repaired, sensor F loses its washer supply.
B0134 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.3 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B0134
- Sensor F no longer gets washer fluid; only air or a wiper, if present, still works
- Assistance functions that rely on sensor F report reduced availability
Common causes of B0134
- Most likelyWinding of the channel F pump or valve open or shorted
- PossibleWiring of channel F damaged, for example after bodywork near the sensor mount
- Less likelyDriver stage for channel F in the module failed
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Av washer fluid pump fPump wiring
What each part of B0134 means
| B | Body system: airbags, seat belts, power seats, lights and climate control. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 34 | The exact fault in that area. |
What to do next
- Note B0134 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about B0134
What does B0134 mean?
B0134 means "A/V Sensor Washer Fluid F Control Circuit". B0134 is the last of the six A/V sensor washer fluid circuits (B012F for A up to B0134 for F) and covers channel F. It is a generic code, so it means the same on every make.
Is it safe to drive with B0134?
B0134 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B0134 fail an emissions test?
B0134 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is B0134 to fix?
Difficulty: medium. A typical repair takes 0.3 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will B0134 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.