P08EB code meaning
Drive Motor A Clutch Pawl Position Circuit Low
Powertrain system Generic code P08xx codes Check engine light
What P08EB means
Set when the pawl position signal of the drive motor A disconnect clutch stays below its valid range, which points to a short to ground in the signal wire, a missing sensor supply or a sensor that has failed low. The module then cannot tell whether the pawl has engaged. No manufacturer documents this code publicly; the matching hardware is the disconnect clutch switch on the front drive unit of the Corvette E-Ray, which GM links only to P08ED, and supplier patents describe such position sensing on pawl or strut clutches. CARB requires out-of-range checks on these inputs. P08EC is the high-side fault, P08EA the general circuit fault. The system typically keeps the motor uncoupled and lights a warning.
P08EB at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P08EB
- Check engine light or hybrid system warning on
- Electric drive axle disabled
- Hybrid modes with electric assist not selectable
Common causes of P08EB
- Most likelyPosition signal wire shorted to ground
- PossibleMissing supply voltage to the position switch
- PossiblePosition switch or sensor failed low
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor a clutchDrive motor a clutch pawlWiring harness
What each part of P08EB means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 8 | Area: transmission. |
| EB | The exact fault in that area. |
What to do next
- Note P08EB 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 P08EB
What does P08EB mean?
P08EB means "Drive Motor A Clutch Pawl Position Circuit Low". Set when the pawl position signal of the drive motor A disconnect clutch stays below its valid range, which points to a short to ground in the signal wire, a missing sensor supply or a sensor that has failed low. It is a generic code, so it means the same on every make.
Is it safe to drive with P08EB?
Drive gently and only to a workshop. With P08EB the car can go into limp mode (reduced power) to protect itself.
Will P08EB fail an emissions test?
Yes, it can. P08EB 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 P08EB to fix?
Difficulty: hard. A typical repair takes 1 to 4 hours of work. This is a job for a workshop.
Will P08EB clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.