Body, generic

B0130 A/V Sensor Washer Fluid B Control Circuit

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

B0130 reports a fault where the module switches A/V sensor washer fluid B, the second of six channels running from B012F (A) to B0134 (F). A/V almost certainly stands for autonomous vehicle. Uber's cleaning layout (US20180015907A1) shows what such a channel switches: a compressor charges an air accumulator, one reservoir with a level sensor holds the fluid, and several pumps feed the cleaning heads, each started separately by the vehicle computer. Kautex sells its Allegro system for cameras and lidar on vehicles from level 1 to level 5, mixing water and air jets. Which sensor channel B serves is not published, and no carmaker documents B0130. With the circuit open or shorted, the sensor on channel B is no longer washed.

Likely causes

Pump motor or valve coil on fluid channel B open or shorted
Corroded or loose connector at the pump, exposed to washer spray and road salt
Output stage for channel B in the controlling module failed

Symptoms

  • The camera or lidar on channel B stays dirty while the others are cleaned
  • Driver assistance or automated driving reports a blocked sensor or is withdrawn

Repair estimate

DifficultyMediumDIY possible
Parts and labour€30–400
Time0.3–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

av washer fluid pump bpump wiring

Related codes

B012FB0131B0132B0133B0134

References: patents.google.com, kautex.com, patents.google.com.