Symptoms of P0935
- Harsh, delayed, or slipping shifts, or being stuck in one gear.
- Check-engine light, sometimes with limp-home mode.
- Flaring RPM or a shudder under load.
Common causes of P0935
- Low or degraded transmission fluid.
- A failing speed sensor, shift solenoid, or pressure-control circuit.
- Wiring, connector, or internal hydraulic/mechanical faults.
Useful checks before replacing parts
- Check pressure sensor signal voltage, reference, ground, open circuits, short-to-voltage faults, connector spread, and terminal corrosion.
- Compare pressure data with pump or pressure-unit command, shift feel, actual pressure if available, and related sensor codes.
- Inspect wiring disturbed during transmission service and verify the sensor circuit with the connector loaded.
Related OBD-II codes
These nearby transmission entries can help compare wording and pin down the fault area.