OBD-II code · Powertrain (generic)
P099D Shift Solenoid H Control Circuit Range/Performance
The control circuit of shift solenoid H reports a control circuit range/performance condition. Gear element actuation cannot be commanded reliably on this channel.
Is it safe to drive with P099D?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyCoil resistance drifted
- PossibleHigh-resistance contact
- Less likelySensor element aged beyond calibration window
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–6 h
- Emissions test
- Usually unaffected
- Parts involved
- Shift Solenoid H, Wiring Harness, Tcm
Related codes
- P08D1Shift Solenoid J Control Circuit Range/Performance
- P08DAShift Solenoid K Control Circuit Range/Performance
- P08E3Shift Solenoid L Control Circuit Range/Performance
- P0972Shift Solenoid A Control Circuit Range/Performance
- P0975Shift Solenoid B Control Circuit Range/Performance
- P0978Shift Solenoid C Control Circuit Range/Performance
- P0981Shift Solenoid D Control Circuit Range/Performance
- P0984Shift Solenoid E Control Circuit Range/Performance
- P0997Shift Solenoid F Control Circuit Range/Performance
- P099AShift Solenoid G Control Circuit Range/Performance
- P099BShift Solenoid G Control Circuit Low
- P099CShift Solenoid G Control Circuit High
- P099EShift Solenoid H Control Circuit Low
- P099FShift Solenoid H Control Circuit High
- P09A0Shift Solenoid G Control Circuit/Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.