P0B03
Electric/Auxiliary Transmission Fluid Pump Motor Phase V Current
Generic OBD-II
Common symptoms
What you'll notice
- Check and replace any faulty wiring or connectors related to the electric/auxiliary transmission fluid pump motor phase V current.
- Inspect and replace the electric/auxiliary transmission fluid pump motor if it is found to be defective.
- Verify and correct any issues with the power supply to the electric/auxiliary transmission fluid pump motor phase V current.
- Ensure that the control module responsible for regulating the electric/auxiliary transmission fluid pump motor phase V current is functioning correctly and replace if necessary.
Common causes
Most likely first
- Faulty electric/auxiliary transmission fluid pump motor
- Malfunctioning transmission control module
- Low or contaminated transmission fluid
- Wiring or connection issues with the electric/auxiliary transmission fluid pump motor
- Defective sensors related to the transmission system
How to diagnose & fix
Work through it in order
- Transmission slipping or hesitation
- Delayed or erratic shifting
- Overheating of the transmission
- Illumination of the check engine light
- Loss of power during acceleration
Read & clear P0B03 yourself
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