Powertrain, generic · Transmission

P0999 Shift Solenoid F Control Circuit High

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

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.

Likely causes

Open solenoid coil inside the valve body
Open control wire or short to voltage
Connector pin pushed out or corroded

Symptoms

  • Check engine light
  • Limp mode or loss of a gear range
  • Harsh shifts

Repair estimate

DifficultyHardWorkshop job
Parts and labour€150–1,800
Time1–5 h

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

Parts involved

shift solenoid fwiring harnesstcm

Related codes

P0997P0998P097FP099CP2709

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