P099C code meaning
Shift Solenoid G Control Circuit High
Powertrain system Generic code P09xx codes Check engine light
What P099C means
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.
P099C at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P099C
- Check engine light
- No reverse or harsh reverse engagement (Mitsubishi)
- Limp mode
Common causes of P099C
- Most likelyOpen control wire or connector between module and valve body
- PossibleOpen solenoid coil inside the valve body
- Less likelyControl wire shorted to voltage
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Shift solenoid gWiring harnessTCM
What each part of P099C means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 9 | Area: transmission. |
| 9C | The exact fault in that area. |
What to do next
- Note P099C and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P099C
What does P099C mean?
P099C means "Shift Solenoid G Control Circuit High". High-voltage fault in the control circuit of shift solenoid G. It is a generic code, so it means the same on every make.
Is it safe to drive with P099C?
Drive gently and only to a workshop. With P099C the car can go into limp mode (reduced power) to protect itself.
Will P099C fail an emissions test?
Yes, it can. P099C is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P099C to fix?
Difficulty: hard. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P099C clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.