P08E9Drive Motor A Clutch Enable Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Set when the enable line of the drive motor A disconnect clutch actuator reads higher than it should, for example because it is shorted to a supply voltage or the line floats due to an open ground. The module then cannot reliably switch the actuator off or confirm its state. No manufacturer documents this code publicly; the nearest known application is the front electric drive unit of the Corvette E-Ray, whose disconnect clutch actuator and switch GM services as separate parts but describes only under P08ED and a communication code. CARB covers the fault through its output component monitoring. P08E8 is the low-side counterpart, P08E7 the general circuit fault. The system normally keeps the motor uncoupled.
- What you may notice
- Check engine light or hybrid system warning on
- Electric drive on the affected axle switched off
- Possible clunk when the system tries to couple the motor
- Likely causes
- LikelyEnable wire shorted to a supply circuit
- PossibleOpen ground or reference circuit of the actuator
- PossibleInternal fault in the disconnect clutch actuator
- RareFaulty output stage in the drive motor control module
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €150 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.