P0999Shift Solenoid F Control Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- High-voltage fault in the control circuit of shift solenoid F, from a short to voltage or, where the driver uses a pull-up, an open coil or wire. Nissan's bulletin NTB15-037 for the 2012–2017 Versa, Versa Note and Sentra with the RE0F11A CVT names P0999 together with P0998 as shift solenoid F and calls for replacing the control valve rather than the whole CVT when diagnosis confirms the fault. Mitsubishi's 2019 six-speed assigns P0998/P0999 to the low clutch shift solenoid; for its sister valve G it detects an open circuit as a high reading. Other makers handle F elsewhere: Genesis under P2709, Ford's summaries stop at solenoid E. CARB requires output circuit checks. P0998 is the low side.
- What you may notice
- Check engine light
- Limp mode or loss of a gear range
- Harsh shifts
- Likely causes
- LikelyOpen solenoid coil inside the valve body
- PossibleOpen control wire or short to voltage
- PossibleConnector pin pushed out or corroded
- 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: €150 – €1,800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.