B2957
Blend Door Open Circuit Failure Or Short
B2957 is an OBD-II diagnostic trouble code meaning: Blend Door Open Circuit Failure Or Short. Common causes: open or short circuit in wiring harness, damper motor malfunction. Estimated repair cost: $56–167.
Symptoms
- It is impossible to regulate the temperature in the cabin
- Only hot or only cold air constantly blows
- Clicking or unusual noises from the damper area
Causes
- Open or short circuit in wiring harness
- Damper motor malfunction
- Problems with the climate control module
- Mechanical jamming of the damper
How to Fix
- Check the integrity of the wiring harness to the damper
- Measure the resistance of the damper motor
- Check control signals from the climate control module
- If necessary, replace the electric motor or damper
- Calibrate the damper after repair
Related codes
FAQ
What does the B2957 code mean?
B2957 is an OBD-II diagnostic trouble code that indicates: Blend Door Open Circuit Failure Or Short
What causes a B2957 error code?
The most common causes of B2957 include: Open or short circuit in wiring harness; Damper motor malfunction; Problems with the climate control module; Mechanical jamming of the damper.
How do I fix a B2957 diagnostic trouble code?
To fix B2957: Check the integrity of the wiring harness to the damper. Measure the resistance of the damper motor. Check control signals from the climate control module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2957?
Limited driving only, diagnose soon
How much does it cost to fix B2957?
The estimated repair cost for B2957 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat