P275ATransmission Fluid Temperature Sensor D Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Needs a drive cycle to confirm a fix
- How the car detects it
- P275A flags an electrical fault in the circuit of transmission fluid temperature sensor D, the fourth position in the SAE lettering. A gearbox with four separate fluid temperature inputs is rare, and no manufacturer publicly assigns sensor D or describes when P275A is stored. CARB requires every such powertrain input to be checked for interrupted circuits and for values beyond the sensor span. The general circuit code fits modules that cannot or do not distinguish between an open and a short; where they can, P275C and P275D apply. Diagnosis follows the usual path: read the live value of D next to the other temperature readings, inspect the connector, then measure the resistance of sensor and lead.
- What you may notice
- Warning lamp
- Temperature D missing or implausible on the scan tool
- Likely causes
- LikelyFault in connector or lead of sensor D
- PossibleSensor D electrically defective
- RareModule input stage faulty
- 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.