The P2735 code indicates that the powertrain control module has detected an intermittent signal or performance issue with Pressure Control Solenoid F. This solenoid regulates transmission fluid pressure to ensure proper clutch engagement and shifting transitions.
The solenoid may have an internal electrical failure or a mechanical sticking point that causes intermittent operation.
Frayed wires, corrosion in the connectors, or loose pins can cause an unstable electrical connection to the solenoid.
Debris, metal shavings, or sludge in the fluid can block the solenoid orifice, leading to inconsistent pressure control.
Internal wear or scoring within the valve body bores can cause the solenoid spool to stick or leak fluid.
A malfunction in the powertrain control module's driver circuit, though this is highly unlikely compared to mechanical or wiring faults.
Yes, if the PCM detects a critical failure in pressure control, it may trigger a safety mode (limp mode) that limits the transmission to a single gear.
No, it is very rare. Most technicians may suggest replacing the PCM if they cannot find a wiring fault, but the issue is almost always the solenoid or the harness.
If the solenoid is sticking due to debris, a fluid flush may help, but if the solenoid has an internal electrical failure, replacement is necessary.