CYLINDER GP-STEERING 4557584 - Caterpillar

Illustration 1 g00330892
Implement Electronic Control Module (1) Connector J1. (2) Connector J2.The implement ECM makes decisions based on information that is input to the ECM and information in memory. The implement ECM then sends a corresponding response through the outputs. The inputs and outputs of the implement ECM are connected to the machine harness. Use contact connectors J1 and J2.Inputs
The machine has several input devices. Input devices inform the implement ECM of the operating conditions of the machine. The machine has inputs from switches and sensors. Switches provide an open, a ground or a + battery to the inputs of the implement ECM. Sensors provide a constantly changing signal to the implement ECM. The inputs into the implement ECM are listed in the tables that follow.Outputs
The implement ECM responds to decisions by sending electrical signals through the outputs. The outputs can create an action or the outputs can provide information to the implement ECM. The outputs for the implement ECM are listed in the tables that follow.Input/Output
The CAT®data link is used to communicate with other electronic control modules on the machine. The data link is bidirectional. The data link allows the ECM to receive information. The data link allows the ECM to send information. The data link allows the sharing of information with other electronic control modules. A sample of the information that is passed between electronic control modules through the data link is shown below.The implement electronic control module (ECM) receives engine speed information from the power train ECM. The implement ECM uses this information to perform calibrations. The implement ECM receives information about the key start switch from the power train ECM. The implement ECM uses this information to deactivate during engine cranking. The implement ECM exchanges diagnostic information with the Caterpillar Monitoring System. All electronic control modules that use a data link will have a module identifier (MID). The MID for the Implement ECM is 082. The Caterpillar Monitoring System displays the fault codes. The MID identifies the faulty system.
Table 1
J1 Connector (Implement ECM)    
No. (1)    Function    Type    
1     + Battery     Power    
2     Ground     Ground    
3     Cat Data Link     Input/Output    
4     Proportional Solenoid (Lower)     Output (Prop)    
5     Ground     Ground    
6     + Battery     Power    
7     Solenoid Return     Output Return    
8     Pilot ON/OFF Solenoid Valve     Output (On/Off)    
9     CAT Data Link     Input/Output    
10     Proportional Solenoid (Raise)     Output (Prop)    
11     Proportional Solenoid (Tilt)     Output (Prop)    
12     Lower Kickout Detent Solenoid     Output (On/Off)    
13     Implement Lockout Switch (N/O)     Input    
14     Implement Lockout Switch (N/C)     Input    
15     Digital Return     Return    
16     Digital Return     Return    
17     Proportional Solenoid (Tilt)     Output (Prop)    
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