P2736 indicates that the control circuit for the pressure control solenoid F has an open circuit, preventing the transmission from achieving proper line pressure during operation.
The solenoid can develop an internal open circuit due to wear, contamination, or electrical failure, cutting off control voltage to the circuit.
Damaged insulation, corrosion, or a loose pin in the harness can interrupt the signal, causing the circuit to appear open.
Insufficient fluid level or fluid that has lost viscosity can reduce pressure, leading the PCM to detect an abnormal pressure control signal.
A worn pump or internal leakage can prevent the system from building the required pressure, triggering the open circuit detection.
A failure inside the PCM's output driver for the solenoid can mimic an open circuit, but this is uncommon compared to component failures.
No. The PCM is rarely the cause; most often the solenoid, its wiring, or low fluid level is responsible.
You may be able to drive briefly, but the transmission may shift harshly or slip, and continued operation could cause damage.
A diagnostic scan tool can command the solenoid and measure its resistance; an open reading or lack of movement indicates failure.
If the fluid is low, dirty, or has never been changed, a fluid service can help restore proper pressure and may clear the code after repair.