P0960Pressure Control Solenoid A Control Circuit/Open
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Open-circuit fault in the driver circuit of pressure control solenoid A: the module measures an impedance far above the coil value, as if a wire, pin or winding were broken. Which solenoid carries the letter A depends on the gearbox. Ford uses it for the line pressure (EPC) solenoid; GM's 8-speed for clutch 1 (CB1278R), the 9- and 10-speeds for clutch CB123456(R), Allison 1000 for main modulation (line) pressure and GM's dual-clutch gearbox for the odd-clutch valve. GM flags more than 200 kOhm for 0.3 s (Type A), Allison 173 kOhm or more after an intrusive test. GM six-speeds report an open under P0963 instead. Low and high are P0962/P0963, performance P0961. Expect maximum line pressure, harsh shifts or a fixed limp gear.
- What you may notice
- Transmission warning or MIL on, fault message in the cluster
- Very firm or harsh shifts due to maximum line pressure
- Transmission stays in a fixed limp gear
- Likely causes
- LikelyOpen solenoid coil inside the valve body or solenoid assembly
- PossibleLoose, corroded or pushed-back pin at the transmission connector or pass-through
- PossibleBroken wire between module and solenoid
- RareFaulty output stage in the transmission control module
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €150 – €1,800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.