P2823 code meaning
Pressure Control Solenoid J Intermittent
Powertrain system Generic code P28xx codes Check engine light
What P2823 means
P2823 is reserved for a fault at valve J that appears and disappears, either in its wiring or in its hydraulic action. No manufacturer publishes a description of this code. CARB 13 CCR 1968.2 obliges makers to monitor transmission output devices for circuit and functional faults, yet leaves it to them whether to split off intermittent codes. The systems that do use the J series show why such faults are elusive: GM's 2020 circuit tests need the flag in 0.3 of every 0.5 s, and the 2023 Corvette waits 150 ms before confirming a J fault, so very brief dropouts may never be logged and only appear as an odd shift or a park lock that reacts late. Read the freeze frame, flex the harness at the transmission plug with live data running and inspect pins for corrosion or spread contacts.
P2823 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 P2823
- Occasional rough or unexpected shift
- Warning that comes and goes
- Sometimes delayed park lock response
Common causes of P2823
- Most likelyLoose or spread pin at the transmission connector
- PossibleHarness rubbing through under vibration
- PossibleCoil that drops out only when hot
- Less likelyValve J sticking now and then due to contaminated fluid
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Pressure control solenoid jWiring harness
What each part of P2823 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. |
| 23 | The exact fault in that area. |
What to do next
- Note P2823 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 P2823
What does P2823 mean?
P2823 means "Pressure Control Solenoid J Intermittent". P2823 is reserved for a fault at valve J that appears and disappears, either in its wiring or in its hydraulic action. It is a generic code, so it means the same on every make.
Is it safe to drive with P2823?
Drive gently and only to a workshop. With P2823 the car can go into limp mode (reduced power) to protect itself.
Will P2823 fail an emissions test?
Yes, it can. P2823 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 P2823 to fix?
Difficulty: hard. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P2823 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.