P0B39
Motor Electronics Coolant Pump B Control Circuit Low
P0B39 is an OBD-II diagnostic trouble code meaning: Motor Electronics Coolant Pump B Control Circuit Low. Common causes: cooling pump b fault, open or short circuit in control circuit. Estimated repair cost: $56–167.
Symptoms
- Engine overheating
- Reduced engine performance
- Check Engine Light Is On
- Noise from the cooling pump area
Causes
- Cooling pump B fault
- Open or short circuit in control circuit
- Poor connection or corroded connectors
- Faulty relay or fuse
- Problems with the engine control unit
How to Fix
- Check the pump fuse and relay
- Inspect the wiring harness and connectors for damage.
- Check resistance and voltage on the pump
- Replace the faulty pump if necessary
- Test the operation of the pump after repair
Related codes
Error P0B39 by Vehicle Brand
FAQ
What does the P0B39 code mean?
P0B39 is an OBD-II diagnostic trouble code that indicates: Motor Electronics Coolant Pump B Control Circuit Low
What causes a P0B39 error code?
The most common causes of P0B39 include: Cooling pump B fault; Open or short circuit in control circuit; Poor connection or corroded connectors; Faulty relay or fuse.
How do I fix a P0B39 diagnostic trouble code?
To fix P0B39: Check the pump fuse and relay. Inspect the wiring harness and connectors for damage.. Check resistance and voltage on the pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B39?
Limited driving only, diagnose soon
How much does it cost to fix P0B39?
The estimated repair cost for P0B39 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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