Powertrain
Definition only
Lights the check engine lamp
P2796: Electric/Auxiliary Transmission Fluid Pump A Control Circuit / Open
Standardized SAE J2012 code · P27xx — Transmission
What does P2796 mean?
The controller cannot drive the first auxiliary transmission fluid pump. Pressure is lost during stop-start engine-off events.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
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
- High Open pump motor winding
- Medium Broken control wire
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2796 on the same make and model first.
P2796 in the community
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