OBD II Fault Code

  • OBD II P0B03

OBD-II Code Vehicle will not operate is defined as a AUXILIARY Transmission Fluid Pump Motor Phase V Current

The Power Inverter Module controls the current flow to the auxiliary transmission fluid pump. This pump pressurises the fluid in the transmission, allowing it to change gears. If the Power Inverter Module detects an incorrect amount of current in the system, code P0B03 will set.The current is controlled and contained within the Power Inverter Module.

Vehicle will not operate Symptoms

  • Vehicle will not operate

Common Problems That Trigger the P0B03 Code

  • Power inverter module failure
  • Power inverter module software needs to be updated
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