Powertrain, generic · Transmission

P099C Shift Solenoid G Control Circuit High

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

High-voltage fault in the control circuit of shift solenoid G. Mitsubishi's 2019 six-speed uses P099C for an open circuit of the low-reverse brake shift solenoid: with the solenoid commanded off and transmission relay voltage of 2 V or more, a reading of 3.7 V or more for 0.5 s sets the code. So on this design an open shows up as high, not under P09A0. The drive cycle needs only 10 s with the ignition on. Causes named are the harness, connectors, the TCM and the solenoid in the valve body. Nissan lists P099C as shift solenoid G for the 2012–2017 Versa, Versa Note and Sentra with the RE0F11A CVT, with control valve replacement as the fix. P099B is the low side, P099A performance.

Likely causes

Open control wire or connector between module and valve body
Open solenoid coil inside the valve body
Control wire shorted to voltage

Symptoms

  • Check engine light
  • No reverse or harsh reverse engagement (Mitsubishi)
  • Limp mode

Repair estimate

DifficultyHardWorkshop job
Parts and labour€100–1,800
Time1–5 h

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

Parts involved

shift solenoid gwiring harnesstcm

Related codes

P099AP099BP09A0P0999

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