B2916
Auxiliary Blend Door Motor Circuits Shorted
B2916 is an OBD-II diagnostic trouble code meaning: Auxiliary Blend Door Motor Circuits Shorted. Common causes: short circuit in hvac wiring harness, sub choke motor malfunction. Estimated repair cost: $33–133.
Symptoms
- Inability to adjust the temperature in the cabin
- Constantly blowing hot or cold air
- The climate control fault indicator is on
- Extraneous noises from the heater unit
- Asymmetrical heating in different areas of the cabin
Causes
- Short circuit in HVAC wiring harness
- Sub choke motor malfunction
- Oxidation of damper motor connectors
- Mechanical jamming of the damper
- Climate control module malfunction
How to Fix
- Read error codes and determine affected climate control zone
- Inspect the wiring harness to the damper motors for damage.
- Check motor connectors for oxidation and integrity of contacts
- Measure the damper motor winding resistance
- Replace faulty damper motor
- Reset codes and check climate control operation
Related codes
FAQ
What does the B2916 code mean?
B2916 is an OBD-II diagnostic trouble code that indicates: Auxiliary Blend Door Motor Circuits Shorted
What causes a B2916 error code?
The most common causes of B2916 include: Short circuit in HVAC wiring harness; Sub choke motor malfunction; Oxidation of damper motor connectors; Mechanical jamming of the damper.
How do I fix a B2916 diagnostic trouble code?
To fix B2916: Read error codes and determine affected climate control zone. Inspect the wiring harness to the damper motors for damage.. Check motor connectors for oxidation and integrity of contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2916?
Do not drive — repair immediately
How much does it cost to fix B2916?
The estimated repair cost for B2916 is $33–133. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat