OBD Guide
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B226C

Left Blend Door Motor Stalled

B226C is an OBD-II diagnostic trouble code meaning: Left Blend Door Motor Stalled. Common causes: mechanical jamming of the mixing valve, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Inability to adjust temperature on the left side of the cabin
  • Extraneous noises from under the instrument panel
  • Different air temperatures from the left and right deflectors

Causes

  • Mechanical jamming of the mixing valve
  • Open or short circuit in wiring harness
  • Damper motor malfunction
  • Problems with the climate control unit

How to Fix

  1. Diagnostics of the damper motor power circuit
  2. Checking the mechanical stroke of the damper
  3. Replacing a faulty damper motor
  4. Repair or replace wiring harness if necessary
  5. Resetting the error and checking the system operation

Related codes

B226DB226BB226A

FAQ

What does the B226C code mean?

B226C is an OBD-II diagnostic trouble code that indicates: Left Blend Door Motor Stalled

What causes a B226C error code?

The most common causes of B226C include: Mechanical jamming of the mixing valve; Open or short circuit in wiring harness; Damper motor malfunction; Problems with the climate control unit.

How do I fix a B226C diagnostic trouble code?

To fix B226C: Diagnostics of the damper motor power circuit. Checking the mechanical stroke of the damper. Replacing a faulty damper motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B226C?

Limited driving only, diagnose soon

How much does it cost to fix B226C?

The estimated repair cost for B226C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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