Neutral Safety Switch: Description and Operation
DESCRIPTIONThis sensor incorporates a series of step down resistors, which act as a voltage divider. The powertrain control module monitors the voltage, which corresponds to the position of the manual lever. This information is used in determining desired gear and electronic pressure control pressure.
This sensor also houses the start circuits for the ignition system, to allow the vehicle to be started in "PARK" or "NEUTRAL".
The backup lamp circuits, which are closed in reverse, are also contained within this sensor.