P27A2
Electric/Auxiliary Transmission Fluid Pump B Control Circuit/Open
P27A2 is an OBD-II diagnostic trouble code meaning: Electric/Auxiliary Transmission Fluid Pump B Control Circuit/Open. Common causes: open or short circuit in the pump control circuit, pump solenoid valve malfunction. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Gear shifting problems
- Transmission transition to emergency mode
- Unusual noises from the transmission area
- Reduced transmission efficiency
Causes
- Open or short circuit in the pump control circuit
- Pump solenoid valve malfunction
- Wiring harness damage
- Fuse or relay failure
- Malfunction of the transmission fluid pump itself
How to Fix
- Check control circuit fuses and relays
- Inspect the wiring harness and connectors for damage.
- Check the resistance of the pump winding
- Diagnose the operation of the solenoid valve
- If necessary, replace the transmission fluid pump
Related codes
Error P27A2 by Vehicle Brand
FAQ
What does the P27A2 code mean?
P27A2 is an OBD-II diagnostic trouble code that indicates: Electric/Auxiliary Transmission Fluid Pump B Control Circuit/Open
What causes a P27A2 error code?
The most common causes of P27A2 include: Open or short circuit in the pump control circuit; Pump solenoid valve malfunction; Wiring harness damage; Fuse or relay failure.
How do I fix a P27A2 diagnostic trouble code?
To fix P27A2: Check control circuit fuses and relays. Inspect the wiring harness and connectors for damage.. Check the resistance of the pump winding. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P27A2?
Limited driving only, diagnose soon
How much does it cost to fix P27A2?
The estimated repair cost for P27A2 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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