P27D3Pressure Control Solenoid S 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
- P27D3 reports an electrical problem with pressure control solenoid S without saying which kind. No manufacturer publishes this code. GM, the only maker known to fit a fifth synchronizer valve (Corvette dual-clutch, 23OBDG07 and 24OBDG07), monitors that valve with separate codes from the S block: P27D5 open load, P27D7 short to ground and P27D8 short to battery, current error or a short to a neighbouring output found at shutdown, all Type A. P27D3 would therefore come from a controller that does not differentiate. CARB 13 CCR 1968.2 calls for circuit checks on transmission actuators. Check the coil, connector and harness first.
- What you may notice
- MIL on
- Gears on rod 5 unavailable
- Limp mode possible
- Likely causes
- LikelySolenoid S coil open or shorted
- PossibleCorroded or loose connector at the transmission
- PossibleDamaged wiring between TCM and solenoid S
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.