P2DB1 code meaning
Drive Motor A Temperature Sensor C Circuit
Powertrain system Generic code P2Dxx codes Check engine light
What P2DB1 means
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.
P2DB1 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 12 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2DB1
- 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
Common causes of P2DB1
- Most 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
- Less likelyFaulty sensor input in the inverter or motor control unit
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor a temp sensor cWiring harnessInverter
What each part of P2DB1 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| B1 | The exact fault in that area. |
What to do next
- Note P2DB1 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2DB1
What does P2DB1 mean?
P2DB1 means "Drive Motor A Temperature Sensor C Circuit". P2DB1 reports a circuit fault on a third temperature sensor (C) in drive motor A. It is a generic code, so it means the same on every make.
Is it safe to drive with P2DB1?
Drive gently and only to a workshop. With P2DB1 the car can go into limp mode (reduced power) to protect itself.
Will P2DB1 fail an emissions test?
Yes, it can. P2DB1 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2DB1 to fix?
Difficulty: workshop only. A typical repair takes 1 to 12 hours of work. This is a job for a workshop.
Will P2DB1 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.