Code result

P0B05

Electric/Auxiliary Transmission Fluid Pump Motor Phase V Current High

High severity

What it means

The phase V current of the auxiliary transmission fluid pump motor reports a current high fault. Pump phase commutation impaired.

Is it safe to drive?

No — stop driving

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.

Most likely causes

  • Short between motor phases

    high

    One of the most commonly reported causes for this code — check this first.

  • Rotor stalled

    medium

    A plausible cause — test and verify before replacing parts.

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