Proper operation of the automatic transmission depends on the shifting of the belts and clutches, which is accomplished by accurate transmission fluid pressure at the proper time and place. Transmission pressure control solenoids are responsible for the fluid pressure to the clutches or belts. The Powertrain Control Module (PCM) monitors the internal pressure of the solenoids and sends the fluid to the various hydraulic circuits that are in charge of transmission ratio changes.
P0962 OBDII diagnostic code indicates that the PCM found a low voltage condition in the “A” pressure control solenoid circuit.