P08C6Pressure Control Solenoid M Electrical
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Collective code for an electrical fault of pressure control solenoid M without a finer split into open, low or high. No manufacturer documents it publicly. GM, the documented user of letter M on the Corvette dual clutch (synchronizer actuation valve 1), reports electrical faults only through the specific codes P08C8, P08CA and P08CB, which are derived from the diagnostic status of the low-side driver chip and confirmed after 150 ms. CARB requires a circuit check for every monitored transmission solenoid. A manufacturer setting P08C6 would point to coil, connector or harness of this valve; for the driver this means the warning light and restricted shifting on the affected shaft.
- What you may notice
- Check engine light on
- Restricted shifting or fallback mode
- Likely causes
- LikelySolenoid coil open or shorted
- PossibleDamaged connector or internal harness
- RareFaulty driver stage in the transmission 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: €100 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.