Powertrain, generic · Transmission

P0998 Shift Solenoid F Control Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

Low-voltage fault, typically a short to ground, in the control circuit of shift solenoid F. Two makers document it. Nissan lists P0998 as shift solenoid F in bulletin NTB15-037 for the 2012–2017 Versa, Versa Note and Sentra with the RE0F11A CVT, whose two-speed auxiliary gearbox uses a low brake, a high clutch and a reverse brake; if the shop manual check points to the transaxle, the bulletin has only the control valve replaced. Mitsubishi's 2019 service manual for a six-speed automatic names P0998/P0999 the low clutch shift solenoid valve system and counts it among faults that can cause gear ratio errors. CARB requires transmission outputs to be checked for circuit faults. P0999 is high, P097F open.

Likely causes

Solenoid or valve body (control valve) internal fault
Control wire shorted to ground in harness or connector
Transmission control module driver fault

Symptoms

  • Check engine light
  • Limp mode or loss of a gear range
  • Harsh engagement or flare when shifting

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

P0997P0999P097FP099BP2709

References: static.nhtsa.gov, static.nhtsa.gov, mitsubishitechinfo.com, fenderbender.com.