B012F code meaning
A/V Sensor Washer Fluid A Control Circuit
What B012F means
B012F reports a fault in the control circuit for A/V sensor washer fluid A, the first of six such circuits, with B0130 to B0134 following. A/V most likely stands for autonomous vehicle; the circuit drives the pump or valve that delivers fluid to one sensor. Uber's patent family (US20180015907A1, US10220817B2) shows the layout: one reservoir, a set of pumps the vehicle computer starts individually for each camera or lidar cleaner, plus compressed air through solenoid valves. Ford's US10569746B2 has the computer run a wash pump when it judges a sensor window dirty. Which sensor A serves is not published; no maker documents B012F. If the circuit fails, sensor A goes uncleaned and automated driving functions may restrict themselves.
B012F 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 B012F
- Sensor A is no longer washed, camera or lidar view stays dirty
- Assistance or automated driving functions report sensor blocked or become unavailable
Common causes of B012F
- Most likelyPump motor or valve coil for fluid circuit A open or shorted
- PossibleDamaged wiring or corroded connector in the control circuit
- Less likelyDriver stage in the controlling module defective
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 aPump wiring
What each part of B012F 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). |
| 2F | The exact fault in that area. |
What to do next
- Note B012F 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 B012F
What does B012F mean?
B012F means "A/V Sensor Washer Fluid A Control Circuit". B012F reports a fault in the control circuit for A/V sensor washer fluid A, the first of six such circuits, with B0130 to B0134 following. It is a generic code, so it means the same on every make.
Is it safe to drive with B012F?
B012F does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B012F fail an emissions test?
B012F 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 B012F 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 B012F clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.