DTC P0842: General Description
Transmission fluid pressure sensor is installed in the hydraulic pressure circuit to the over drive clutch. When hydraulic pressure is supplied to the over drive clutch, the transmission fluid pressure sensor output is above the main regulator valve output pressure. When hydraulic pressure is not supplied to the over drive clutch, the transmission fluid pressure sensor output is low pressure. The signal from transmission fluid pressure sensor is input to the powertrain control module (PCM). The PCM detects the hydraulic pressure supply conditions at the over drive clutch to hydraulic circuit. If transmission fluid pressure sensor output voltage is a specified value for a set time, the PCM detects a transmission fluid pressure sensor failure and stores a DTC.