P2826Pressure Control Solenoid J 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
- P2826 indicates that the line to solenoid J is pulled to ground. GM's 2020 tables name three uses for J: the clutch select valve of the nine-speed, the default disable valve of the ten-speed and the boost valve of the eight-speed. About 0.5 ohm to ground for 0.3 of 0.5 s gives a Type A fault, and T87a eight-speed controllers also log P2826 when the J circuit is open, so a broken wire can hide behind it. The 2016 eight-speed table already set it after one trip with the same window. On the 2023 Corvette the park lock engaging valve is checked while energized; a pin voltage below roughly 1.7 V for 150 ms yields Type B. Ford's TR9070 assigns a shorted switch at its park lock valve to this code. Chafed insulation at brackets is a frequent cause.
- What you may notice
- Limp gear or loss of boost pressure
- Park lock fault message (dual-clutch models)
- MIL on
- Likely causes
- LikelyControl wire shorted to ground through chafed insulation
- PossibleCoil of valve J shorted to its housing
- RareOpen J circuit reported as low on GM T87a controllers
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €80 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.