P2E1D code meaning
Drive Motor A Phase X Current Sensor Circuit Low
Powertrain system Generic code P2Exx codes Check engine light
What P2E1D means
P2E1D says the phase X current sensor signal of drive motor A lies below its lowest valid value. Phase current flows in both directions, so the sensor reports a signed quantity; low therefore means a reading more negative than any real current, not a weak current. That other case, too little current in an energised phase, is P2C6A. No manufacturer documents P2E1D publicly. GM's U-phase counterpart on the 2016 Volt trips below -700 A for 0.05 s within a 0.1 s window, Type A, MIL after one trip. Such a value points to the measuring path: a signal shorted to ground, a lost sensor supply or a failed sensor inside the inverter. Where such a sensor sits is shown in a Mitsubishi Electric patent: on the lead from the inverter to the X winding. Expect a hybrid warning and reduced drive. High side: P2E1E.
P2E1D at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 6 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2E1D
- Hybrid warning lamp and MIL
- Sharp loss of electric drive power
- Vehicle may only drive in a reduced mode
Common causes of P2E1D
- Most likelySensor signal shorted to ground inside the inverter
- PossibleSupply voltage of the phase X sensor missing
- PossiblePhase X current sensor failed
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor a phase x current sensorWiring harnessHybrid control module
What each part of P2E1D means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 1D | The exact fault in that area. |
What to do next
- Note P2E1D 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 P2E1D
What does P2E1D mean?
P2E1D means "Drive Motor A Phase X Current Sensor Circuit Low". P2E1D says the phase X current sensor signal of drive motor A lies below its lowest valid value. It is a generic code, so it means the same on every make.
Is it safe to drive with P2E1D?
Drive gently and only to a workshop. With P2E1D the car can go into limp mode (reduced power) to protect itself.
Will P2E1D fail an emissions test?
Yes, it can. P2E1D 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 P2E1D to fix?
Difficulty: workshop only. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P2E1D clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.