B011E code meaning
Fluid Reservoir Level Sensor C
What B011E means
B011E covers level sensor C. Vehicles that steer by camera and lidar need their own cleaning supply, and there the level reading becomes an operating condition. Uber's application US20180015907A1 shows a sensor-cleaning reservoir with a dedicated liquid level sensor reporting to the vehicle computer; below a threshold the computer lights an indicator or tells a remote operator to refill. The related patent US10220817B2 adds a compressor and solenoid valves and handles pressure and fluid readings beyond their limits in the same way. Whether reservoir C is such a cleaning tank is stated nowhere, and B011E appears in no public manufacturer document. A fault leaves the system unsure whether it can still clean its sensors.
B011E at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.3 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B011E
- Refill request or cleaning-system warning without obvious reason
- Sensor cleaning may be withheld, and assistance functions may restrict themselves when sensors get dirty
Common causes of B011E
- Most likelyLevel sensor C defective or signal implausible
- PossibleDamaged wiring or connector between sensor and computing module
- Less likelyDirt or ice in the reservoir disturbing the measurement
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Fluid reservoir level sensor cSensor wiring
What each part of B011E means
| B | Body system: airbags, seat belts, power seats, lights and climate control. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 1E | The exact fault in that area. |
What to do next
- Note B011E and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about B011E
What does B011E mean?
B011E means "Fluid Reservoir Level Sensor C". B011E covers level sensor C. It is a generic code, so it means the same on every make.
Is it safe to drive with B011E?
B011E does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B011E fail an emissions test?
B011E is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is B011E to fix?
Difficulty: medium. A typical repair takes 0.3 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will B011E clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.