MOUNT AS-ISLN 5075616 - Caterpillar

Two-Speed Solenoid
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The solenoid has a connector with two contacts. The solenoid ground is connected to the ECM through contact J2-4. The signal contact is connected to the ECM through contact J1-12. The two-speed switch sends a request to the ECM to have the two-speed solenoid activated. When the solenoid is energized, high speed travel is possible.C+/C- Solenoids
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When the "Aux 4" button is pressed, contact J2-32 sends a signal to energize the "C+" relay. The relay supplies power to the "C+" solenoid on the work tool control valve. Pilot oil from the gear pump (charge oil) moves through the control valve in order to activate the spool. Supply oil from the piston pump (work tool) flows through the spool to the "Aux 4" coupling.When the "Aux 3" button is pressed, contact J2-27 sends a signal to energize "C-" relay. The relay supplies power to the "C-" solenoid on the work tool control valve. Pilot oil from the gear pump (charge oil) moves through the control valve in order to activate the spool. Supply oil from the piston pump (work tool) flows through the spool to the "Aux 3" couplingFuel Shutdown and Cold Start Advance Solenoids
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When the keyswitch is turned ON, the ECM will activate the cold start advance relay if the engine coolant temperature is below 35 °C (95 °F).The cold start advance feature controls a relay that activates and deactivates a solenoid on the fuel pump at a certain jacket water temperature. The solenoid on the fuel pump, when energized, extends a shaft that changes the roller ring setting in the fuel pump in order to advance the timing during a cold start.Implement Shutoff Solenoid
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The solenoid has a connector with two contacts. The solenoid ground is connected to the ECM through contact J2-4. The signal contact is connected to the ECM through contact J1-6. Relays
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Schematic for the Cold Start Advance, Stop Lamp, Backup Alarm, Fuel Pump, Ride Control, Work Tool Trigger, Work Tool C1, Work Tool C2, C-Plus and C-MinusCold Start Advance, Stop Lamp, Backup Alarm, Fuel Pump, Ride Control, Work Tool Trigger, Work Tool C1, Work Tool C2, C-Minus, and C-Plus Relays
Cold Start Advance
When the keyswitch is turned ON, the ECM will activate the cold start advance relay if the engine coolant temperature is below 35 °C (95 °F).The cold start advance feature controls a relay that activates and deactivates a solenoid on the fuel pump at a certain jacket water temperature. The solenoid on the fuel pump, when energized, extends a shaft that changes the roller ring setting in the fuel pump in order to advance the timing during a cold start.J2-20Stop Lamp
When the brakes are applied to the machine, contact J2-10 sends a signal to energize the relay and send power to the lamp circuit.Backup Alarm
When the machine is placed in reverse, contact J2-11 sends a signal to energize the relay and send power to the alarm circuit.Fuel Pump
The machine ECM energizes the coil of the relay for the fuel