Code P0705: Transaxle Range Switch: Notes
Transmission range switch is part of Transmission Mounted Neutral Start Switch (TMNSS) mounted on transaxle assembly. Transmission range switch is a multi-signal switch that sends information, relative to gear selector position, to PCM. PRNDL input consists of 4 discrete circuits to pull 4 PCM voltages low in various combinations to indicate each gear range. Voltage level of each of circuits is represented as low equals grounded circuit and high equals open circuit. The 4 states displayed represent decoder parity, "A", "B"and "C" respectively.
Code P0705 will set when the following conditions are present.
- Ignition is on and engine off.
- Vehicle speed is zero MPH.
- PRNDL inputs indicate a gear other than Park and Neutral.
- All conditions are met for a predetermined time for 3 consecutive start-ups.
or
- PRNDL inputs status indicators ("P", "A", "B"and "C") indicate an incorrect combination of low and high. PCM will also command stepper motor cruise control to be inhibited.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.