B27B5
Electric Compressor Internal Circuit
B27B5 is an OBD-II diagnostic trouble code meaning: Electric Compressor Internal Circuit. Common causes: compressor power supply circuit open, short circuit in control circuit. Estimated repair cost: $111–556.
Symptoms
- Air conditioner doesn't work
- Loss of engine power (if the compressor is connected to a turbocharger)
- Check Engine Light Is On
- Noises when the compressor is running
Causes
- Compressor power supply circuit open
- Short circuit in control circuit
- Wear of internal compressor components
- Control unit malfunction
How to Fix
- Check the power supply and control circuits of the compressor for breaks and short circuits
- Check the mechanical condition of the compressor
- Replace faulty compressor components or the entire compressor
- Check and, if necessary, replace the control unit
Related codes
FAQ
What does the B27B5 code mean?
B27B5 is an OBD-II diagnostic trouble code that indicates: Electric Compressor Internal Circuit
What causes a B27B5 error code?
The most common causes of B27B5 include: Compressor power supply circuit open; Short circuit in control circuit; Wear of internal compressor components; Control unit malfunction.
How do I fix a B27B5 diagnostic trouble code?
To fix B27B5: Check the power supply and control circuits of the compressor for breaks and short circuits. Check the mechanical condition of the compressor. Replace faulty compressor components or the entire compressor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B27B5?
Limited driving only, diagnose soon
How much does it cost to fix B27B5?
The estimated repair cost for B27B5 is $111–556. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat