P2754Transmission Fluid Cooler Control Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2754 reports that the drive line to the transmission fluid cooling actuator sits at too low a voltage, which in practice means a short to ground or a heavily loaded output. The module then cannot switch the coolant valve or cooler control as intended, and depending on design the valve may remain permanently open or closed. No manufacturer documents P2754 publicly. Audi applies the neighbouring open-circuit code P2753 to the cooling valve on the 2023 Q7 and SQ7, which shows where the fault sits; CARB requires output components to be monitored for shorts as well as opens. Typical culprits are chafed insulation touching the body, water in the connector or a shorted winding. Many output stages shut themselves off to protect against overload.
- What you may notice
- Check engine lamp on
- Fluid temperature higher or lower than normal for the conditions
- Usually no change in shift behaviour
- Likely causes
- LikelyControl wire chafed through and shorted to ground
- PossibleWater or coolant in the valve connector
- PossibleShorted turns in the valve coil
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €40 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.