P2720Pressure Control Solenoid D Control Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2720 reports a low signal on the control line of solenoid D, which in practice is a short to ground. GM's 2016 eight-speed table sets it on the clutch 4 valve after a 0.3 s ground-short flag within one trip; the six-speed tables do the same for their valve D. On the 2023 Corvette dual-clutch transmission the TCM checks the line while the low-side driver is on: if the sense voltage stays under about 1.7 V for at least 100 ms, the even-clutch shutdown valve is shorted to ground (Type A). Ford's TR9070 logs its shorted switch case under this code. GM's service update N182193520 names P2720 next to P2718 when the 8L45/8L90 valve body connector is not fully latched, so a poor connection can produce it as well as a pinched wire.
- What you may notice
- MIL on and limp-home operation
- Limited forward gears
- Harsh shifts
- Likely causes
- LikelyControl wire pinched or chafed against ground
- PossibleValve body connector not fully seated
- PossibleInternally shorted solenoid D
- RareTCM driver fault
- 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: €80 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.