DeVille V8-4.6L VIN 9 (1995)
Fluid Pressure Sensor/Switch: Description and Operation
TRANSAXLE PRESSURE SWITCH
The transaxle pressure switch is located inside of the transaxle and it composed of five discrete pressure switches that are combined to provide
three status indications to the PCM. The PCM then uses these three inputs in a digital format (001, 010, 011, 100, 101, 110) to determine the six
possible transaxle ranges.
The PCM uses the transaxle pressure switch status for idle speed control, transaxle shift control and ignition control. A faulty transaxle pressure
switch will cause various transaxle and engine driveability conditions and should set a Diagnostic Trouble Code.
