Transmission Position Sensor/Switch: Description and Operation

The PRND Switch is mounted to the side of the transaxle and is part of the PNP switch. The PRND switch is used by the PCM to indicate the actual gear selected. The PRND is made up of four individual switches. The scan tool will indicate ON or OFF for each switch depending on the position of the gear selector lever. The combination of ONs and OFFs will indicate the gear selected. If the combination of ONs and OFFs is invalid, a DTC will set.