P276E
Electric/Auxiliary Transmission Fluid Pump B Motor Current Low
The measured current of the second auxiliary transmission fluid pump motor is below the lower threshold. Pump may be free-spinning or motor partially open.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Common causes
Ordered by how often each turns out to be the cause.
- Partial winding open in motorCommon
- Pump impeller decoupled from motor shaftPossible
Parts involved
- Aux Trans Pump B
- Pump Motor
P276E is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.