B0132A/V Sensor Washer Fluid D Control Circuit
- Generic OBD-II code · Body
- How the car detects it
- B0132 concerns washer fluid channel D of a self-driving vehicle's sensor cleaning, the fourth in the series that starts at B012F. In Uber's patent US10173646B1 the vehicle computer judges how dirty each sensor is and then works out a cleaning order, so the cleaning units fire one after another instead of all at once; a dead channel removes one sensor from that rotation. Rain, snow, road salt, pollen, insect remains and bird droppings are the deposits named there. A KTH thesis written for Scania compared cleaning methods for heavy autonomous trucks and tuned fluid use by varying pump output. Nobody publishes which sensor sits on channel D, and no carmaker documents B0132. Typical faults are an open pump circuit or a short in its supply.
- What you may notice
- Sensor D is skipped in the cleaning sequence and stays dirty
- Automated driving may limit itself or ask the driver to take over
- Likely causes
- LikelyOpen circuit in the channel D pump or valve, often a burnt-out winding
- PossibleSupply or control lead of channel D shorted to ground or battery voltage
- RarePump blocked by frozen or contaminated fluid, drawing excess current
- 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.