P0B07
Electric/Auxiliary Transmission Fluid Pump Motor Phase W Current Low
Generic OBD-II
Common symptoms
What you'll notice
- Check the wiring and connections to the electric/auxiliary transmission fluid pump motor.
- Inspect the motor for any signs of damage or malfunction.
- Test the motor's current to determine if it is operating below the recommended levels.
- Replace the electric/auxiliary transmission fluid pump motor if necessary.
- Consult the vehicle manual for any specific troubleshooting steps or recommendations.
Common causes
Most likely first
- Faulty electric/auxiliary transmission fluid pump motor
- Low voltage in the wiring/connectors related to the pump motor
- Defective transmission fluid pump motor phase W current sensor
- Defect in the control module or relay for the pump motor
- Disruption in the power supply to the pump motor phase W
How to diagnose & fix
Work through it in order
- Delayed or hesitant gear shifting
- Inability to shift gears or engage certain gears
- Transmission slipping or jerking
- Overheating of the transmission
- Complete loss of power to the transmission
Read & clear P0B07 yourself
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