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BOLT 0002839 - Caterpillar

0002839 BOLT Caterpillar parts BOLT
Alternative (cross code) number:
Caterpillar 0002839 BOLT

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Illustration 1 g00785019
Electronic Control Module (ECM)
The machine security system (MSS) is a integrated feature for the machine ECM. The MSS software and components are integrated into an ECM that controls other machine functions.ECM Inputs
The key start switch is also used as an input signal to the MSS. The input from the key switch is used to determine when the machine is on. Battery voltage is connected to this input through the ON and START positions of the keyswitch. When the machine is operating and the alternator is charging, the voltage on this input will be 14.1 - 15.1 Volts for a 12 Volt system and 27.6 - 29.6 Volts for a 24 Volt system. When the machine is not running, the voltage on this input will be approximately 12 Volts for a 12 Volt system and approximately 24 Volts for a 24 Volt system.ECM Outputs
Status Indicator
The status indicator displays status of the system. The status indicator has three connections. One of the three connections is for a ground. Another connection is for the red LED. The third connection is for the green LED. Output Drivers
Output drivers are available to control critical machine functions. Unless a valid "key ID" has been identified by the system, the drivers will remain without power.

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