P2814 code meaning
Pressure Control Solenoid G Control Circuit Low
Powertrain system Generic code P28xx codes Check engine light
What P2814 means
P2814 reports that the drive line of solenoid G is pulled toward ground, typically a chafed wire or a coil shorted to ground. GM's 2020 tables name G as the line pressure valve on nine- and ten-speed boxes and the converter clutch valve on the eight-speed; a resistance of about 0.5 ohm to ground, present for 0.3 s out of a 0.5 s sample, sets a Type A fault. In the 2023 Corvette dual-clutch box G drives the limited-slip differential, and a pin voltage under roughly 1.7 V while switched on stores it as Type B. Ford's 2024 summary uses it for a shorted switch on the even clutch cooling valve of the TR9070. GM's PIP5799 replaces the 10-speed valve body when P2812 or P2814 has no other cause. Expect firm shifts or a fixed line pressure.
P2814 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 6 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2814
- MIL or transmission warning on, often with a fault message
- Firm shifts because line pressure falls back to a fixed value
- Converter clutch no longer locks up (eight-speed applications)
- Limited-slip differential inactive on dual-clutch Corvettes
Common causes of P2814
- Most likelySolenoid G control wire chafed through to ground in the gearbox harness
- PossibleSolenoid G coil with internal short to its housing
- PossibleFault inside the valve body assembly (GM 10-speed, PIP5799)
- Less likelyDamaged output stage in the transmission control module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Pressure control solenoid gWiring harness
What each part of P2814 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 8 | Area: transmission. |
| 14 | The exact fault in that area. |
What to do next
- Note P2814 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 P2814
What does P2814 mean?
P2814 means "Pressure Control Solenoid G Control Circuit Low". P2814 reports that the drive line of solenoid G is pulled toward ground, typically a chafed wire or a coil shorted to ground. It is a generic code, so it means the same on every make.
Is it safe to drive with P2814?
Drive gently and only to a workshop. With P2814 the car can go into limp mode (reduced power) to protect itself.
Will P2814 fail an emissions test?
Yes, it can. P2814 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 P2814 to fix?
Difficulty: hard. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P2814 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.