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B011F code meaning

Fluid Reservoir Level Sensor D

Body system Generic code B01xx codes

What B011F means

B011F reports level sensor D. A recurring weakness of float switches in washer bottles is motion: fluid slopping around in corners or under braking lifts and drops the float and can set it spinning. Continental's patent US9003878B2 answers with a float guided in an angled carrier, ribs that stop it turning and an optional slosh guard, so one design suits side or bottom mounting. The other weak point is the wiring: FCA parts tip 68225064A tells technicians who face a false low-fluid message to check circuits W1 and W11 at a 48-way connector before condemning the float sensor. Which tank letter D refers to is left open by the makers, and nobody documents B011F publicly. Expect flickering or false level messages.

B011F 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 B011F

  • Level warning switching on and off while driving, especially in bends
  • False low-level message with a full reservoir

Common causes of B011F

  • Most likelyLoose or corroded pins at an intermediate harness connector
  • PossibleFloat moving freely with sloshing fluid, guide or slosh guard broken
  • Less likelyLevel sensor D itself defective

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 dSensor wiring

What each part of B011F means

BBody system: airbags, seat belts, power seats, lights and climate control.
0Generic code: it means the same on every make (SAE standard).
1FThe exact fault in that area.

What to do next

  • Note B011F 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 B011F

What does B011F mean?

B011F means "Fluid Reservoir Level Sensor D". B011F reports level sensor D. It is a generic code, so it means the same on every make.

Is it safe to drive with B011F?

B011F does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.

Will B011F fail an emissions test?

B011F 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 B011F 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 B011F clear itself after the repair?

Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.

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Technical content: OBDex open OBD-II database (public domain, CC0), checked 6 Nov 2026, edited for US drivers by the VinGear team.
Technical sources for B011F