Test Description

WARNING: This page is about a different car, the 1995 Oldsmobile Ninety-Eight and 1995 Buick Park Avenue. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Test numbers refer to numbers on diagnostic chart.

& 2) Checks for proper operation of transmission range switch.
This test checks for an open or grounded circuit. When Code P0705 is present, PCM assumes drive-4 position until a correct combination is received by PCM. Some gear select positions may not be possible until fault is repaired.

Fig 1: Code P0705 Schematic (3.8L) Transaxle Range Switch

Fig 2: Code P0705 Diagnostic Flow Chart (3.8L) Transaxle Range Switch