B0131A/V Sensor Washer Fluid C Control Circuit
- Generic OBD-II code · Body
- How the car detects it
- B0131 points to the circuit that switches A/V sensor washer fluid C, the third channel of the B012F to B0134 series for autonomous vehicle sensors. Ford's patent US10569746B2 describes a rotating sensor cover: the computer first tries a contactless cleaner with fluid or air and only brings in a wiper when the window's measured opacity stays above a limit. A Korean lab study of lidar windows ran its washer at 0.5 bar and its air jet at 2 bar and found the type of dirt, its concentration and whether it had dried to matter most. No carmaker documents B0131 with this meaning. General Motors lists B0131 among the keywords of bulletin PIP5094 from 2013, which belongs to an older, unrelated numbering. Fault effect: sensor C goes unwashed.
- What you may notice
- Washing of sensor C stops; dirt, salt or insects stay on its window
- A wiper or air jet, if fitted, has to do the cleaning alone
- Likely causes
- LikelyPump or solenoid valve of channel C with open or shorted winding
- PossibleHarness to the sensor cleaning unit chafed or pinched at a bracket
- RareControlling module output for channel C defective
- Repair
- Medium · Often possible to do yourself.Typical cost: €30 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.