STEERING AR-SECONDARY 6G7900 - Caterpillar

Illustration 1 g03385828
Engine start circuit (remote control)
The components of the engine start circuit (remote control) are the:
Remote control switch
Remote control logic unit
Power Train Electronic Control Module (ECM)
Engine ECM
Start relay magnetic switch
Starting motor solenoid
Starting motor
Illustration 2 g03395107
Dash panel
(1) Remote control switch
Illustration 3 g00992478
View of transmission bay
(2) Remote control logic unit
Illustration 4 g01145984
Cab
(3) Power Train ECM
Illustration 5 g01153768
Left side view of engine
(4) Engine ECM With the key start switch in the ON position, 24 V power is supplied from the batteries via:
Circuit breaker #9 to Power Train ECM (3)
Circuit breaker #14 to Engine ECM (4)
Illustration 6 g00992479
Remote control logic unit
(5) Engine start relay 1 When remote control switch (1) is in the ON position, a radio signal is sent by the transmitter to the receiver. The receiver sends a signal to remote control logic unit (2). Engine start relay 1 (5) is activated and a 24 V battery supply is supplied to Power Train ECM (3).
Illustration 7 g01429043
Left side view of engine
(6) Start relay magnetic switch
Illustration 8 g00990237
Left side view of engine
(7) Starting motor solenoid
(8) Starting motor Power Train ECM (3) supplies 24 V power to start relay magnetic switch (6). When start relay magnetic switch (6) is energized, 24 V power is supplied to starting motor solenoid (7) and to starting motor (8).Reference: For more information on the remote control system, refer to Systems Operation, Testing, and Adjusting, "Remote Control System".