P2720 code meaning
Pressure Control Solenoid D Control Circuit Low
Powertrain system Generic code P27xx codes Check engine light
What P2720 means
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.
P2720 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2720
- MIL on and limp-home operation
- Limited forward gears
- Harsh shifts
Common causes of P2720
- Most likelyControl wire pinched or chafed against ground
- PossibleValve body connector not fully seated
- PossibleInternally shorted solenoid D
- Less likelyTCM driver fault
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Pressure control solenoid dWiring harness
What each part of P2720 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 7 | Area: transmission. |
| 20 | The exact fault in that area. |
What to do next
- Note P2720 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 P2720
What does P2720 mean?
P2720 means "Pressure Control Solenoid D Control Circuit Low". P2720 reports a low signal on the control line of solenoid D, which in practice is a short to ground. It is a generic code, so it means the same on every make.
Is it safe to drive with P2720?
Drive gently and only to a workshop. With P2720 the car can go into limp mode (reduced power) to protect itself.
Will P2720 fail an emissions test?
Yes, it can. P2720 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 P2720 to fix?
Difficulty: medium. A typical repair takes 0.5 to 5 hours of work. This is a job for a workshop.
Will P2720 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.