P0CDE code meaning
Drive Motor A Position Sensor Circuit C Intermittent/Erratic
Powertrain system Generic code P0Cxx codes Check engine light
What P0CDE means
P0CDE describes a circuit C signal from the drive motor A position sensor that drops out or jumps briefly instead of failing for good. That pattern suits loose terminals at the resolver plug, a harness strained by drivetrain movement, or a winding or contact that opens only when hot. Short glitches matter because the inverter needs the rotor angle continuously; GM therefore evaluates its resolver circuits A and B within fractions of a second (0.25 s in a 0.375 s window). No manufacturer publicly documents P0CDE or the meaning of circuit C, so CARB's requirement to monitor electric drive inputs is the general basis. A dropout can cause a jolt, a hybrid warning or a switch to engine operation, and after a restart the car often drives normally again. A wiggle test with the motor warm helps.
P0CDE at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0CDE
- Occasional jolt or hybrid system warning
- Temporary switch to engine operation
- Fault disappears after restart
Common causes of P0CDE
- Most likelyLoose or spread terminal in the resolver connector
- PossibleHarness strained or chafed by drivetrain movement
- Less likelyResolver winding or joint that opens when hot
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor a position sensor cWiring harnessHybrid control module
What each part of P0CDE means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| C | Area: hybrid propulsion. |
| DE | The exact fault in that area. |
What to do next
- Note P0CDE 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 P0CDE
What does P0CDE mean?
P0CDE means "Drive Motor A Position Sensor Circuit C Intermittent/Erratic". P0CDE describes a circuit C signal from the drive motor A position sensor that drops out or jumps briefly instead of failing for good. It is a generic code, so it means the same on every make.
Is it safe to drive with P0CDE?
Drive gently and only to a workshop. With P0CDE the car can go into limp mode (reduced power) to protect itself.
Will P0CDE fail an emissions test?
Yes, it can. P0CDE 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 P0CDE to fix?
Difficulty: hard. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P0CDE clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.