P2DB1Drive Motor A Temperature Sensor C 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
- P2DB1 reports a circuit fault on a third temperature sensor (C) in drive motor A. Three probes in one motor make most sense when each phase winding of the three-phase machine gets its own: Mitsubishi equips the front motor of the 2023 Outlander PHEV with U-, V- and W-phase coil sensors, and a fault on any of them lights both the hybrid warning and the MIL. The W-phase probe, its sensor 3, uses the maker's own codes P3055 to P3057 rather than P2DB1, and no manufacturer documents P2DB1 publicly. The direction of the fault is left to P2DB3 (signal low) and P2DB4 (signal high). With two other probes still working the car usually drives on, but the control unit may cap power.
- What you may notice
- Hybrid system warning and check engine light
- Sensor C missing or frozen in live data while the other motor sensors read normally
- Electric drive power capped
- Likely causes
- LikelyBroken or shorted sensor C lead between motor and inverter
- PossibleLoose or corroded terminal at the motor connector
- PossibleSensor C thermistor failed in its phase winding
- 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.