P2DACDrive Motor A Temperature Sensor B Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2DAC is the general circuit fault of a second temperature sensor (B) in drive motor A; sensor A has its own series from P0A2A. A motor carries a second probe either as a backup element beside the first – Sensata's hairpin sensor patent allows two NTCs, or an NTC plus a PTC, in one housing – or as a probe on another phase winding. No manufacturer documents P2DAC publicly. Mitsubishi shows the multi-probe layout on the 2023 Outlander PHEV, with coil sensors on the U, V and W phases, but files sensors 2 and 3 under its own codes from P3052 and only accepts voltages between 0.1 and 4.93 V. Which side the voltage left is recorded by P2DAE (low) and P2DAF (high), not by P2DAC. Losing the reading usually means derated electric drive.
- What you may notice
- Hybrid system warning or check engine light
- Electric drive power limited
- Sensor B shows a fixed or missing value in live data while sensor A looks normal
- Likely causes
- LikelyBroken or shorted sensor B lead between motor and inverter
- PossibleLoose, corroded or pushed-out terminal at the motor connector
- PossibleSensor B thermistor failed inside the stator
- RareFaulty sensor input in the inverter or motor control unit
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.