P2737Pressure Control Solenoid F Control Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- The standard title describes implausible readings on the control circuit of solenoid F that are neither a clean open nor a short. GM's 2025 table 25OBDG03A fills the code with a hydraulic test on its CVT, where valve F switches the binary oil pump between half and full capacity. With the vehicle below 2 mph, accelerator released, engine between 600 and 1,200 rpm, fluid above 50 °C and the garage shift finished, the TCM compares the averaged pressures from the primary and secondary pulley sensors in both pump modes. If the differences stay too large, the valve is judged not to follow its command; GM classes this Type B, so the MIL comes on after two trips. Other makers do not publish P2737. A failed pump valve can reduce clamping pressure and lead to belt slip.
- What you may notice
- MIL on after two trips
- Belt slip, flare or reduced power
- Whine from the CVT
- Likely causes
- LikelyBinary pump control valve sticking (GM CVT)
- PossiblePrimary or secondary pulley pressure sensor reading wrong
- PossibleLow or degraded CVT fluid
- RareHigh resistance in the solenoid F circuit
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €4,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.