P1516-P1517

PARK/NEUTRAL POSITION SWITCH - (PNPS)

Park/Neutral Position Switch:

Monitoring Procedure
If the ECM receives a cranking signal input with the neutral switch input indicating that the transmission is in gear, the cranking failure judgement is made. The diagnostic trouble code (DTC) is stored if the failure judgement is made on two successive trips.

If the vehicle is travelling in excess of 50 mile / hour under load for some time while the neutral switch input indicates that the transmission is in neutral then the gear change failure judgement is made, as it would be impossible to achieve this condition unless a gear was selected. The DTC is stored if the failure judgement is made on two successive trips.

ECM Interface Circuit: