900 S Sedan V6-2498cc 2.5L DOHC (1995)
The the Motronic 5.2 receives the signal on pin 86.
When any of the gear positions R. D, 3, 2 or 1 is selected from gear position N. the transmission control module applies positive battery voltage (B+) to
pin 11. Otherwise the voltage on pin 11 is 0 volts.
The intention is to inform the engine control module that a gear position (forward or.reverse) has been selected. The engine control module then ensures
that engine idling speed is raised to compensate for this change in load.
Idling speed compensation is achieved by the engine control module opening the idle air control valve wider than normal so that a constant idling speed
can be maintained.
In the event of no signal being received, engine idle speed will drop below 800 RPM when DRIVE is selected and then slowly rise to normal idling
speed.
Electronic Over-Revving Cut-Out
To prevent over-revving of the engine, the transmission is equipped with an electronic over-revving cutout. This means that down shifting cannot take
place until the speed of the car is below the upper limit for the gear in question.
Gear Shifting, N-D and N-R
