OBD Guide
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B2959

Panel/Defrost Door Close Circuit Short/Failure

B2959 is an OBD-II diagnostic trouble code meaning: Panel/Defrost Door Close Circuit Short/Failure. Common causes: short circuit in damper control circuit, broken wires. Estimated repair cost: $56–167.

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

Symptoms

  • Incorrect operation of the climate control system
  • Airflow modes do not switch
  • The damper does not respond to commands

Causes

  • Short circuit in damper control circuit
  • Broken wires
  • Damper motor malfunction
  • Problems with the climate control unit

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the condition of the damper motor
  3. Check the operation of the climate control control unit
  4. Replace faulty components

Related codes

B2960B2961

FAQ

What does the B2959 code mean?

B2959 is an OBD-II diagnostic trouble code that indicates: Panel/Defrost Door Close Circuit Short/Failure

What causes a B2959 error code?

The most common causes of B2959 include: Short circuit in damper control circuit; Broken wires; Damper motor malfunction; Problems with the climate control unit.

How do I fix a B2959 diagnostic trouble code?

To fix B2959: Check the integrity of the wiring harness. Check the condition of the damper motor. Check the operation of the climate control control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2959?

Limited driving only, diagnose soon

How much does it cost to fix B2959?

The estimated repair cost for B2959 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat