Powertrain, generic · Transmission

P09A1 Shift Solenoid H Control Circuit/Open

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

Open circuit or general circuit fault in the drive of shift solenoid H, the eighth shift solenoid. Like P09A0 it is a late J2012 addition that older code lists still show as reserved. No manufacturer was found to document it. Genesis' 2017–2018 G80/G90, the only documented H user, reports its park-function on/off solenoid under P076A and P076D, and bulletin 21-AT-016HG has valve and electronic module replaced for those. Ford's summaries show what an open check looks like for solenoids A to E: a separate open code, run continuously with 0.5 to 5 s of electrical monitoring. CARB requires every transmission output to be checked for circuit continuity. P099D to P099F cover performance, low and high of solenoid H.

Likely causes

Broken control wire or unplugged connector
Open solenoid coil
Pin backed out of the connector housing

Symptoms

  • Check engine light
  • Limp mode or missing gears

Repair estimate

DifficultyHardWorkshop job
Parts and labour€100–1,800
Time1–5 h

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

Parts involved

shift solenoid hwiring harnesstcm

Related codes

P099DP099EP099FP09A0P076A

References: law.cornell.edu, static.nhtsa.gov, fordservicecontent.com.