All codes/B011C

B011C

Fluid Reservoir Level Sensor A

Moderate severity

Fault on fluid reservoir level sensor A. Tracks fluid level in a wash, brake or coolant reservoir.

Fault on fluid reservoir level sensor A. Tracks fluid level in a wash, brake or coolant reservoir.

Common causes

  • Float or sensor failed

    One of the most commonly reported causes for this code — check this first.

    high

    Typical part cost: $40-280

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First things to check

  1. 1Confirm the code with a scan tool and check for additional related codes.
  2. 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does B011C mean?

B011C means "Fluid Reservoir Level Sensor A". It is a generic OBD-II code that points to a fault in the body.

What are the most common causes of B011C?

float or sensor failed — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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