Powertrain, generic · Transmission

P099A Shift Solenoid G Control Circuit Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

The drive circuit of shift solenoid G is electrically intact, but current or voltage feedback does not fit the command. No manufacturer was found to document this code. The two documented users of the G control circuit codes report only the hard faults: Mitsubishi's 2019 six-speed (low-reverse brake shift solenoid) uses P099B for a short and P099C for an open, and Nissan's RE0F11A CVT lists P099B/P099C. Hyundai and Genesis report their on/off solenoid G under P075A and P075D. The slot would follow the pattern FCA uses for solenoids 2 to 5 (P0975 to P0984, control circuit performance). CARB requires transmission outputs to be checked for function. Low and high are P099B/P099C, open P09A0.

Likely causes

Solenoid coil resistance out of specification
High-resistance connector or harness contact
Weak driver stage in the transmission control module

Symptoms

  • Warning light depending on calibration
  • Harsh or missing shifts involving this solenoid
  • Possible 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

P099BP099CP09A0P075AP0997

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