B0133A/V Sensor Washer Fluid E Control Circuit
- Generic OBD-II code · Body
- How the car detects it
- B0133 covers the control circuit of A/V sensor washer fluid E, the fifth channel after B012F to B0132. Autonomous vehicles carry many cameras and lidar units, so cleaning is split into several separately switched fluid paths. Uber's patent US10220817B2 shows a sensor platform whose grooves and raised rim carry fluid and air to the sensor heads. Kautex says its Allegro control software assigns priority among the sensors when coordinating the actuators. In a lab study on lidar windows, results depended above all on the kind of deposit, its density and whether it had dried. Which sensor is on channel E is not disclosed, and no carmaker documents B0133. If the channel stays switched off, deposits on that sensor are no longer removed.
- What you may notice
- The sensor on channel E keeps a film of dirt or dried spray
- Message that a sensor is blocked or an assistance function is unavailable
- Likely causes
- LikelyPump or valve of channel E defective, coil open or shorted
- PossibleWater ingress or corrosion in the connector of channel E
- RareOutput for channel E in the cleaning control module damaged
- 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.