B1856
Climate Control Air Temperature Internal Sensor Motor Circuit Short To Ground
B1856 is an OBD-II diagnostic trouble code meaning: Climate Control Air Temperature Internal Sensor Motor Circuit Short To Ground. Common causes: damage to wiring or wiring harness, air temperature sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- Incorrect operation of climate control
- Lack of response to temperature changes
- Constant operation of ventilation at the same temperature
Causes
- Damage to wiring or wiring harness
- Air temperature sensor malfunction
- Problems with the climate control unit
- Short circuit to ground in the circuit
How to Fix
- Check the integrity of the wiring and wiring harness
- Check the resistance of the air temperature sensor
- Check the operation of the climate control control unit
- Replace damaged components
Related codes
FAQ
What does the B1856 code mean?
B1856 is an OBD-II diagnostic trouble code that indicates: Climate Control Air Temperature Internal Sensor Motor Circuit Short To Ground
What causes a B1856 error code?
The most common causes of B1856 include: Damage to wiring or wiring harness; Air temperature sensor malfunction; Problems with the climate control unit; Short circuit to ground in the circuit.
How do I fix a B1856 diagnostic trouble code?
To fix B1856: Check the integrity of the wiring and wiring harness. Check the resistance of the air temperature sensor. Check the operation of the climate control control unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1856?
Limited driving only, diagnose soon
How much does it cost to fix B1856?
The estimated repair cost for B1856 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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