CAP GP-TRACK IDLER 1311625 - Caterpillar

neutral start function restricts energizing the start relay if the transmission control is NOT in the NEUTRAL position or in the PARK position. The function ensures that the engine will not be started under conditions that would allow the transmission output to rotate unexpectedly. When the requirements are enabled the ECM activates the start relay which then cranks the starting motor. This function is enabled when the following conditions are satisfied.
The shift lever is in the NEUTRAL position.
The key start switch is in the START position.
The system voltage is below 36 volts.
The engine speed is 0 RPM.When the starting motor is turned ON, the starting motor will be disengaged under the following conditions:
The shift lever is NOT in NEUTRAL.
The key start switch is not in the START position.
The system voltage is above 36 volts.
The engine speed is above 300 RPM.Note: The feature can be bypassed by running a wire from the start relay high to the start relay low. This will suppress any faults. This also gives the customer the option of not running the circuit for the starter relay to the Transmission ECM. The neutral start feature will not be able to be performed.