BOOT AS 7T0902 - Caterpillar

neutral start function restricts starting the engine if the transmission control is NOT in the NEUTRAL position or in the PARK position. When this function is enabled the ECM activates the start relay which then cranks the starting motor.This function is enabled when the following conditions are satisfied.
The transmission control is in the NEUTRAL position or in the PARK position.
The key start switch is in the START position.The transmission control tells the ECM that the transmission control is in the NEUTRAL position or in the PARK position. The key start switch tells the ECM that the key start switch is in the START position. The ECM also performs the start prevent function. This function is enabled when the electrical system voltage is greater than 36 volts. The ECM internally monitors electrical system voltage (+battery) that is present at connector contact J1-31. When you improperly jump start a machine this function protects the electrical system. When this function is enabled, the ECM does not activate the start relay.The ECM will also prevent the starter from engaging if the engine speed is greater than 300 rpm.If the machine is equipped with the engine prelube function the ECM will not engage the starter until the prelube function is complete or the manual override is used. If the prelube override is used a prelube override event is logged by the ECM.