P0B03
Electric/Auxiliary Transmission Fluid Pump Motor Phase V Current
P0B03 is an OBD-II diagnostic trouble code meaning: Electric/Auxiliary Transmission Fluid Pump Motor Phase V Current. Common causes: pump motor malfunction, problems with the wiring harness or connectors. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Unusual noises from the transmission area
- Gear shifting problems
- Reduced transmission efficiency
- Transmission transition to emergency mode
Causes
- Pump motor malfunction
- Problems with the wiring harness or connectors
- Control module malfunction
- Short circuit or open circuit
- Low transmission fluid level
How to Fix
- Check the level and condition of the transmission fluid
- Diagnose the pump motor
- Check the integrity of the wiring harness and connectors
- Test the control module
- Replace faulty components
Related codes
Error P0B03 by Vehicle Brand
FAQ
What does the P0B03 code mean?
P0B03 is an OBD-II diagnostic trouble code that indicates: Electric/Auxiliary Transmission Fluid Pump Motor Phase V Current
What causes a P0B03 error code?
The most common causes of P0B03 include: Pump motor malfunction; Problems with the wiring harness or connectors; Control module malfunction; Short circuit or open circuit.
How do I fix a P0B03 diagnostic trouble code?
To fix P0B03: Check the level and condition of the transmission fluid. Diagnose the pump motor. Check the integrity of the wiring harness and connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B03?
Limited driving only, diagnose soon
How much does it cost to fix P0B03?
The estimated repair cost for P0B03 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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