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Home >> Volvo >> 2003 >> S80 Base >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Control Modules - Design And Function - 3 Of 3 >> Transmission Control Module (TCM) (Aw50/51 AWD; Aw55-50/51SN; 2004-2006) >> Function >> Park / neutral position (PNP) function

Park / neutral position (PNP) function

The gear-shift position sensor has a park / neutral position (PNP) function to prevent the engine being started with a gear selected.

This function prevents the engine being started unless the P or N positions are selected. This prevents the car from lurching forwards when started.

For further information, see CENTRAL ELECTRONIC MODULE (CEM) (2005-2006) .