B27C2
PTC Outlet Air Temperature Sensor Low
B27C2 is an OBD-II diagnostic trouble code meaning: PTC Outlet Air Temperature Sensor Low. Common causes: ptc air temperature sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $22–56.
Symptoms
- Incorrect operation of the heating and air conditioning system
- Unstable air temperature in the cabin
- A warning signal appears on the dashboard
Causes
- PTC air temperature sensor malfunction
- Open or short circuit in wiring harness
- Poor contact in the sensor connector
- HVAC control unit malfunction
How to Fix
- Check the condition of the wiring harness and sensor connector
- Check the resistance of the PTC air temperature sensor
- Replace the sensor if it is faulty
- Check HVAC control unit if necessary
Related codes
FAQ
What does the B27C2 code mean?
B27C2 is an OBD-II diagnostic trouble code that indicates: PTC Outlet Air Temperature Sensor Low
What causes a B27C2 error code?
The most common causes of B27C2 include: PTC air temperature sensor malfunction; Open or short circuit in wiring harness; Poor contact in the sensor connector; HVAC control unit malfunction.
How do I fix a B27C2 diagnostic trouble code?
To fix B27C2: Check the condition of the wiring harness and sensor connector. Check the resistance of the PTC air temperature sensor. Replace the sensor if it is faulty. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B27C2?
Limited driving only, diagnose soon
How much does it cost to fix B27C2?
The estimated repair cost for B27C2 is $22–56. Actual cost depends on your vehicle, location, and labor rates.
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