TRACK GP 2639244 - Caterpillar

Illustration 2 g03283179
Implement ECM 2 Solenoid ConnectionsNote: The diagram above is a simplified schematics of ECM connections. The schematic is electrically correct. However, not all of the possible harness connectors are shown. Refer to the latest revision of Electrical Schematic, UENR2694 for the complete schematic.Implement ECM 3
Table 3
Implement ECM 3 MID 434    
DTC    Code Description    System Response    
3219-3     Pump to Attachment #1 Rod End Solenoid Return: Voltage Above Normal     Attachment functions will be limited.    
3219-4     Pump to Attachment #1 Rod End Solenoid Return: Voltage Below Normal     Attachment functions will be limited.    
3220-3     Pump to Attachment #1 Head End Solenoid Return: Voltage Above Normal     Attachment functions will be limited.    
3220-4     Pump to Attachment #1 Head End Solenoid Return: Voltage Below Normal     Attachment functions will be limited.    
3233-3     Attachment #1 Rod End to Tank Solenoid Return: Voltage Above Normal     Attachment functions will be limited.    
3233-4     Attachment #1 Rod End to Tank Solenoid Return: Voltage Below Normal     Attachment functions will be limited.    
3234-3     Attachment #1 Head End to Tank Solenoid Return: Voltage Above Normal     Attachment functions will be limited.    
3234-4     Attachment #1 Head End to Tank Solenoid Return: Voltage Below Normal     Attachment functions will be limited.    
The solenoid is used to shutoff, release, distribute, or mix fluids on the machine. Generally, multiple solenoids are located together on a manifold. The solenoid converts electrical energy into magnetic energy, moving a spool located inside the housing of the valve. A spring is used to hold the spool in position until the solenoid is energized.The magnetic force that acts on the valve spool is created when a coil inside the solenoid is energized.
Possible Causes for an FMI 3 Diagnostic code are:
The harness is shorted.
The Implement ECM has failed. A failure of the ECM is unlikely.Possible causes for an FMI 4 Diagnostic code are:
There is an open in the circuit.
The solenoid has failed.
The Implement ECM has failed. A failure of the ECM is unlikely.
Illustration 3 g03283180
Implement ECM 3 Solenoid ConnectionsNote: The diagram above is a simplified schematics of ECM connections. The schematic is electrically correct. However, not all of the possible harness connectors are shown. Refer to the latest revision of Electrical Schematic, UENR2694 for the complete schematic.Diagnostic Trouble Code Procedure
Note: Prior to beginning this procedure, inspect the harness connectors that are involved in this circuit. Poor connections can often be the cause of a problem in an electrical circuit. Verify that all connections in the circuit are clean, secure, and in good condition. Check the wiring harness for pinch points or abrasions. Look for and repair areas that indicate wires are exposed. If a problem with a connection is found, correct the problem and verify that the diagnostic code is active before performing a troubleshooting procedure.
Table 4
Troubleshooting Test Steps    Values    Results    
1. Identify Active FMI Code Associated With Solenoid Circuit    
Code present.    
FMI