Selector Lever Position Switch Contacts L1 L2 L3 L4 Park X X X Reverse X X Neutral X X X Drive XX = High signal
AUTOMATIC TRANSMISSION – ZF 5HP24 DESCRIPTION AND OPERATION 44-2-37 Fluid Cooling 1 Fluid feed 2 Fluid return 3 Fluid cooler 4 Engine coolant feed 5 Engine coolant return The fluid cooler is located at the bottom right hand corner of the engine. The cooler is cooled by engine coolant which flows in a water jacket around cores within the cooler body. Transmission fluid enters the cooler and flows through the cores where it is cooled by the engine coolant. The fluid leaves the cooler and is passed back to the transmission. The transmission fluid is pumped through the cooler by the transmission fluid pump. The fluid cooler has a thermostatic valve which is opened by transmission fluid temperature. The thermostatic valve is opened at a transmission fluid temperature of CF) and allows engine coolant to flow through the fluid cooler.