B0103Sensor Cleaning Air Blower Actuator B Control
- Generic OBD-II code · Body
- Can trigger limp mode
- How the car detects it
- With B0103 the module flags the command line of blower B, not the blower: open wire, short or a driver that cannot switch. In compressed-air layouts the controlled element is often a valve bank. Uber's patent lets the controller fire individual solenoids for set times, for example one valve for three seconds, so a single faulty drive line leaves only part of the lidar or one camera without air. Ford’s test-car tiara blows an air curtain through slots beside each lens to keep insects off, so a dead control line on the B side lets dirt settle where air should flow. Kautex says its software prioritises cleaning points by coordinating actuators. Which outlets belong to B is unpublished, and no carmaker documents B0103; its partner on the A side is B0102.
- What you may notice
- Lens streaks or droplets remain after a wash cycle
- Cleaning warning for sensors on the B circuit only
- Assistance features temporarily unavailable in rain or dust
- Likely causes
- LikelyDamaged harness or connector in the control path of blower B
- PossibleSolenoid coil of the B air valve open or shorted, where air is valve-switched
- RareFailed driver for blower B in the controlling module
- Repair
- Medium · Often possible to do yourself.Typical cost: €50 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.