V90 L6-2.9L VIN 96 B6304S (1998)
Neutral Safety Switch: Description and Operation
PARK/NEUTRAL POSITION FUNCTION
The gear-shift position sensor has a start inhibit function to prevent starting of the engine while a gear is selected.
This function prevents the engine being started unless the Neutral or Park positions are selected. This prevents the car from inadvertently lurching
forwards when started.