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PLATE 0878474 - Caterpillar



0878474 PLATE Caterpillar parts PLATE
Rating:
46
Alternative (cross code) number:
CA0878474
087-8474
0878474
Caterpillar 0878474 PLATE

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Fuses
Illustration 1 g03791220
Cooling Fan Circuit (1) From fuse "F2" (2) From key switch (3) From fuse "FN3" (4) From fuse "FD2" (5) From fuse "FS03 (6) Transmission ECM (7) Machine ECM (8) Engine ECM (9) CAN resistor (10) Engine coolant temperature sensor (11) Intake manifold temperature sensor (12) Cooling fan solenoid (13) Generator oil temperature sensor (14) Hydraulic oil temperature sensor (15) CAN resistorWhen the electrical disconnect switch is in the ON position, power is available to the following fuses:
Fuse "FN3" (3) - Power transfers from this fuse to the following terminals of machine ECM (7) : terminal "J1-31", terminal "J1-39" and terminal "J1-47". This voltage input provides the power for the processor. This fuse is rated at 15 amps.
Fuse "F2" (1) - Power transfers from this fuse to the following terminals of engine ECM (8) : terminal "J1-84", terminal "J1-85" and terminal "J1-86". This voltage input provides the power for the processor. This fuse is rated at 30 amps.When the key switch is in the ON position, power is available to the following fuses:
Fuse "FD2" (4) - Power transfers from this fuse to the following terminals of transmission ECM (6) : terminal "J1-31", terminal "J1-39" and terminal "J1-47". This voltage input provides the power for the processor. This fuse is rated at 20 amps.
Fuse "FS03" (5) - Power transfers from this fuse to terminal "J1-1" of transmission ECM (6) . This voltage input provides the power for the processor. This fuse is rated at 10 amps.When switched ON, power from key switch (2) is transferred directly to terminal "J1-1" of machine ECM (7) , and terminal "J1-69" of engine ECM (8) .Sender and Sensors
Hydraulic oil temperature sensor (14) has two contacts. Contact "1" of the sensor is connected to terminal "J1-22" of transmission ECM (6) . Contact "2" of the sensor is connected to frame ground.Generator oil temperature sensor (13) has two contacts. Contact "1" of the sensor is connected to terminal "J1-22" of machine ECM (7) . Contact "2" of the sensor is connected to terminal "J2-22" of the ECM.Engine coolant temperature sensor (10) has two contacts. Contact "1" of the sensor is connected to terminal "J2-43" of engine ECM (8) . Contact "2" of the sensor is connected to terminal "J2-37" of the ECM.Intake manifold temperature sensor (11) has two contacts. Contact "1" of the sensor is connected to terminal "J2-35" of engine ECM (8) . Contact "2" of the sensor is connected to terminal "J1-29" of the ECM.Solenoid
Cooling fan solenoid (12) receives power from terminal "J1-4" of engine ECM (8) . The solenoid is grounded at terminal "J1-12" of the ECM.ECM (Controller Logic)
Engine ECM (8) contains both the control logic and driver logic in the system. Data to calculate fan operation is derived from direct sensor and CAN-relayed sensor information.Input Signal to the Transmission ECM
Transmission ECM (6) determines the temperature of the hydraulic oil in the hydraulic tank by monitoring the resistance of hydraulic oil temperature sensor (14) at terminal "J1-22". The transmission ECM sends


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