OBD-II code · Powertrain (generic)
P0998 Shift Solenoid F Control Circuit Low
The control circuit of shift solenoid F reports a control circuit low condition. Gear element actuation cannot be commanded reliably on this channel.
Is it safe to drive with P0998?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyControl wire shorted to ground
- PossibleInternal short in coil
- Less likelyConnector pins corroded - high contact resistance
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 F, Wiring Harness, Tcm
Related codes
- P08D2Shift Solenoid J Control Circuit Low
- P08DBShift Solenoid K Control Circuit Low
- P08E4Shift Solenoid L Control Circuit Low
- P0973Shift Solenoid A Control Circuit Low
- P0976Shift Solenoid B Control Circuit Low
- P0979Shift Solenoid C Control Circuit Low
- P0982Shift Solenoid D Control Circuit Low
- P0985Shift Solenoid E Control Circuit Low
- P099BShift Solenoid G Control Circuit Low
- P099EShift Solenoid H Control Circuit Low
- P0995Transmission Fluid Pressure Sensor/Switch F Circuit High
- P0996Transmission Fluid Pressure Sensor/Switch F Circuit Intermittent
- P0997Shift Solenoid F Control Circuit Range/Performance
- P0999Shift Solenoid F Control Circuit High
- P099AShift Solenoid G Control Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.