OBD Guide
ENFRDEESPT

B2956

Blend Door Close Circuit Failure Or Short

B2956 is an OBD-II diagnostic trouble code meaning: Blend Door Close Circuit Failure Or Short. Common causes: open or short circuit in the damper control circuit, damper motor malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Inability to regulate cabin temperature
  • Constant supply of only hot or only cold air
  • Clicking or unusual sounds from the damper area

Causes

  • Open or short circuit in the damper control circuit
  • Damper motor malfunction
  • Mechanical jamming of the damper
  • Problems with the climate control (HVAC) control unit
  • Corroded contacts or damaged wiring harness

How to Fix

  1. Check the integrity of the damper control circuit
  2. Check the functionality of the damper motor
  3. Clean and lubricate the damper mechanism
  4. Check the climate control control unit
  5. Replace faulty components

Related codes

B2955B2957B2960

FAQ

What does the B2956 code mean?

B2956 is an OBD-II diagnostic trouble code that indicates: Blend Door Close Circuit Failure Or Short

What causes a B2956 error code?

The most common causes of B2956 include: Open or short circuit in the damper control circuit; Damper motor malfunction; Mechanical jamming of the damper; Problems with the climate control (HVAC) control unit.

How do I fix a B2956 diagnostic trouble code?

To fix B2956: Check the integrity of the damper control circuit. Check the functionality of the damper motor. Clean and lubricate the damper mechanism. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2956?

Limited driving only, diagnose soon

How much does it cost to fix B2956?

The estimated repair cost for B2956 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat