P0B06: Electric/Auxiliary Transmission Fluid Pump Motor Phase W Current
What to do
As P0B00.
What this code means
The current in phase W — the last of the pump motor's three circuits — disagrees with the other two.
Nothing arrives with the letter that is not already at P0B00, and the multi-phase rule that turns two or three of these codes into a different diagnosis is at P0B02.
Likely causes
Start here
- Faulty auxiliary transmission fluid pump · specialist
- Corroded or loose connector · easy
Less common
- Damaged transmission wiring harness · moderate
- Motor winding insulation breakdown · specialist
Symptoms
Components involved
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
Be the first to write this up
Nothing posted about this yet. Whatever you found is worth writing down — even a dead end saves someone the same afternoon.
What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
Sign in or create an account to add what you found about P0B06.