Powertrain, generic (extended)

P2816 Pressure Control Solenoid H

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

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.

Likely causes

Internal transmission damage leaving debris in the hydraulics (Toyota eight-speed)
Valve H sticking in its bore
Solenoid H itself defective

Symptoms

  • MIL on, sometimes reduced engine power
  • Harsh or erratic shifts
  • Whining noise from the transmission

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€300–6,000
Time2–12 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

pressure control solenoid hvalve body

Related codes

P2817P2818P2819P281BP2807

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.