Electric/Auxiliary Transmission Fluid Pump Motor Phase V Current High

Where it lives

For P0B05, start at the pump the description names.

Check these first

• A short in the phase V wiring
• High resistance in the phase V windings
• A transmission fluid pump motor that is binding
• Contaminated transmission fluid making the pump work harder

What to do next

1. Read the transmission fluid pump phase V current on a scan tool
2. Check the phase V wiring for a short
3. Measure the phase V winding resistance
4. Check the transmission fluid level and condition
5. Replace the pump motor if the windings test good
6. Clear the code and retest

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