Trans Range Switch

Trans Range Switch Circuit:

Purpose:
The transmission range switch provides the PCM with information regarding gear selector position or PRNDL.

Operation:
The PRNDL input consists of 4 discrete circuits to pull 4 PCM voltages low in various combinations to indicate each gear range. The voltage level of each of the circuits is represented as low = grounded circuit and high = open circuit.

Location:
The TMNSS and Trans Range combination switch is mounted to the transaxle.