P0D7E code meaning
A/C Compressor Motor Phase W Current Low
Powertrain system Generic code P0Dxx codes Check engine light
What P0D7E means
P0D7E applies to phase W, the third winding of the electric A/C compressor motor. GM's 2011–2015 Volt and 2016 Cadillac ELR check the W-phase current sensor while the motor is at rest: a reading of +68 A or more in 30 out of 60 samples at 50 ms sets the code, Type B with the MIL after two trips, and only a 12 V reset re-enables a pass. With all three phase sensors tested the same way, a fault on just one phase points to that sensor channel on the inverter board, while faults on several phases at once suggest a common supply or reference problem in the inverter. The compressor stays off. P0D7F is the negative direction on phase W; P0D7A and P0D7C cover the other two phases.
P0D7E at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor1 to 5 hours
- Clears after repairAfter a drive cycle
Symptoms of P0D7E
- Check engine light after two trips
- Air conditioning does not run
Common causes of P0D7E
- Most likelyOffset or failure of the phase W current sensor channel
- Less likelyCommon supply or reference fault in the inverter (several phases affected)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Ac compressor motor phase wInverter
What each part of P0D7E means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 7E | The exact fault in that area. |
What to do next
- Note P0D7E 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 P0D7E
What does P0D7E mean?
P0D7E means "A/C Compressor Motor Phase W Current Low". P0D7E applies to phase W, the third winding of the electric A/C compressor motor. It is a generic code, so it means the same on every make.
Is it safe to drive with P0D7E?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0D7E fail an emissions test?
P0D7E is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P0D7E to fix?
Difficulty: workshop only. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P0D7E clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.