OBD Guide
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B11CA

Right Temperature Door Travel Too Large

B11CA is an OBD-II diagnostic trouble code meaning: Right Temperature Door Travel Too Large. Common causes: mechanical jamming of the damper, worn or damaged damper actuator. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Uneven airflow of different temperatures on the right and left sides
  • Reduced climate control efficiency
  • Clicking or unusual noises from the instrument panel area

Causes

  • Mechanical jamming of the damper
  • Worn or damaged damper actuator
  • Problems in the control wiring harness
  • Malfunction of the climate control control unit

How to Fix

  1. Check the mechanical movement of the damper manually
  2. Diagnose the damper drive for wear
  3. Check the integrity of the wiring harness
  4. Scan the climate control control unit for errors
  5. If necessary, replace the actuator or damper

Related codes

B11CBB11C9B11CC

FAQ

What does the B11CA code mean?

B11CA is an OBD-II diagnostic trouble code that indicates: Right Temperature Door Travel Too Large

What causes a B11CA error code?

The most common causes of B11CA include: Mechanical jamming of the damper; Worn or damaged damper actuator; Problems in the control wiring harness; Malfunction of the climate control control unit.

How do I fix a B11CA diagnostic trouble code?

To fix B11CA: Check the mechanical movement of the damper manually. Diagnose the damper drive for wear. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B11CA?

Yes, but get it checked soon

How much does it cost to fix B11CA?

The estimated repair cost for B11CA is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat