P09A1Shift Solenoid H Control Circuit/Open
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- 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.
- What you may notice
- Check engine light
- Limp mode or missing gears
- Likely causes
- LikelyBroken control wire or unplugged connector
- PossibleOpen solenoid coil
- RarePin backed out of the connector housing
- 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: €100 – €1,800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.