P275DTransmission Fluid Temperature Sensor D Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Needs a drive cycle to confirm a fix
- How the car detects it
- P275D is stored when the sensor D signal rises past the top of its window. With a thermistor on a pull-up resistor the voltage climbs towards the supply when current can no longer flow, so an interrupted lead, a pushed-back terminal or an unplugged connector is the usual explanation, followed by a short to a voltage source. No manufacturer publishes P275D with limits; for the main sensor GM's 2024 dual-clutch TCM uses more than 4745 mV over 500 ms, and Ford's 2012 strategy more than 4.6 V. A quick check is to measure the resistance from the module side or to bridge the connector briefly with a suitable resistor. Until repaired, the gearbox may treat the oil as cold.
- What you may notice
- Warning lamp
- Temperature D shows an extremely cold value
- Likely causes
- LikelyInterrupted lead or pushed-back terminal at sensor D
- PossibleSensor D open internally
- RareSignal lead shorted to a voltage source
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.