P2816Pressure Control Solenoid H
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2816 is the general code for pressure control solenoid H; a fault type byte usually narrows it down. The valve H stands for depends on the maker. Toyota uses the code on its eight-speed automatics: bulletin T-SB-0160-18 lists P28167F (actuator stuck off) for 2017-2018 Highlander and Sienna together with whine, harsh shifts and reduced power, and offers a remanufactured transaxle, while T-SB-0076-24 for the 2024 Tacoma names P281671 (actuator stuck) and replaces gearbox and torque converter. Mercedes-Benz lists P281600, a malfunction of pressure regulating valve 8, among the faults its guided repair tool handles on the 8G-DCT (transmission 724.1). Specific variants are P2817 to P281E.
- What you may notice
- MIL on, sometimes reduced engine power
- Harsh or erratic shifts
- Whining noise from the transmission
- Likely causes
- LikelyInternal transmission damage leaving debris in the hydraulics (Toyota eight-speed)
- PossibleValve H sticking in its bore
- PossibleSolenoid H itself defective
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €300 – €6,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.