P0C51 code meaning
Drive Motor A Position Sensor Circuit A Range/Performance
Powertrain system Generic code P0Cxx codes Check engine light
What P0C51 means
P0C51 means the first resolver winding of motor A (Circuit A) delivers a signal that is electrically present but not believable, for example unsteady or out of step with the second winding. Bentley uses it on 2025 Continental GT, GTC and Flying Spur hybrids, logged by the e-drive control unit at address 0051 next to P0A4000 and later P0C5B00, with a drive system message in the cluster. Bulletin 2080242 asks for logged measured values, a check of the sensor and power electronics plugs for bent pins, weak terminal grip, moisture or corrosion, then basic settings; revision 3 adds a new 90-degree connector. No set threshold is published. P0C52 to P0C54 cover low, high and sporadic faults of the same line.
P0C51 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1.5 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0C51
- Drive system fault message in the instrument cluster
- No electric or hybrid driving mode available
- Fault may come and go with temperature or vibration
Common causes of P0C51
- Most likelyWeak terminal grip or bent pins at the sensor or power electronics connector
- PossibleMoisture, oil or corrosion in the resolver connectors
- PossibleFaulty 90-degree connector on the affected Bentley models (TPI 2080242/3)
- Less likelyResolver winding with degraded output
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 aWiring harnessHybrid control module
What each part of P0C51 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. |
| 51 | The exact fault in that area. |
What to do next
- Note P0C51 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 P0C51
What does P0C51 mean?
P0C51 means "Drive Motor A Position Sensor Circuit A Range/Performance". P0C51 means the first resolver winding of motor A (Circuit A) delivers a signal that is electrically present but not believable, for example unsteady or out of step with the second winding. It is a generic code, so it means the same on every make.
Is it safe to drive with P0C51?
Drive gently and only to a workshop. With P0C51 the car can go into limp mode (reduced power) to protect itself.
Will P0C51 fail an emissions test?
Yes, it can. P0C51 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 P0C51 to fix?
Difficulty: workshop only. A typical repair takes 1.5 to 5 hours of work. This is a job for a workshop.
Will P0C51 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.