Throttle Position Sensor Operation

THROTTLE POSITION SENSOR
From the Powertrain Control Module (PCM), circuit K6 supplies 5 volts to the Throttle Position Sensor (TPS). Circuit K6 connects to cavity 43 of the PCM, and cavity 1 of the sensor connector.

When the operator puts the vehicle in reverse, the back-up lamp switch connects circuits F20 and L1. Circuit F20 is connected to a bus bar in fuse block, and cavity 3 of the [1][2]PARK/NEUTRAL position switch. Circuit A22 feeds the bus bar.

Circuit L1 feeds the back-up lamps and double-crimps to provide an input to the PCM on cavity 55. Circuit L1 connects to cavity 1 of the [1][2]PARK/NEUTRAL position switch.