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Home >> Oldsmobile >> 1994 >> Eighty-Eight Royale FWD V6-3800 3.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Transmission Position Sensor/Switch >> Description and Operation >> Trans Range Switch
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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.
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