HOOD AR-MIXING 8C0124 - Caterpillar

ECM will allow the operator to select between a high travel speed or low travel speed. The travel speed is selected from the travel speed switch on the soft switch panel (SSP). The switch status is supplied to the ECM over the CAN data link. The default travel speed is high travel speed. In order for the ECM to enable the low travel speed, the following conditions must be correct.
Low travel speed is selected from the travel speed switch on the SSP.
The parking brake is off.
The left console is down.The travel pedal is mechanically connected to the travel pilot pressure system. When the travel pedal is pressed in either the forward or the rearward direction, travel pilot pressure is enabled. When the listed conditions are correct, the ECM will energize transmission gear shift solenoid 1 in order to set the transmission to low speed. When the default high speed is selected and active, the ECM will energize transmission gear shift solenoid 2.