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GASKET 2H9594 - Caterpillar



2H9594 GASKET Caterpillar parts GASKET
Rating:
26
Alternative (cross code) number:
CA2H9594
2H-9594
2H9594
Caterpillar 2H9594 GASKET
Weight: 0.97 pounds 0 kg.

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Illustration 1 g01275846
Schematic of the Door Switch (Implement Lockout)(Switch is shown in the Door Open position)This diagnostic code is associated with the Door Switch (Implement Lockout). The switch is connected to two inputs of the ECM. One contact is normally open. The other contact is normally closed. Wire G943-BU is open and wire G944-YL is closed, when the Door Switch (Implement Lockout) is in the Door Open position. Wire G943-BU is closed and wire G944-YL is open, when the Door Switch (Implement Lockout) is in the Door Closed position. Refer to table 1.
Table 1
Status of the Door Switch (Implement Lockout)    
Door    Switch Position    G943-BU Circuit
J2-37
Contact B    G944-YL Circuit
J2-29
Contact C    
Open     Up     Open     Closed    
Closed     Down     Closed     Open    This FMI 03 means that the ECM has determined that both contacts are open.Note: The following test procedure may create other diagnostic codes. Ignore these diagnostic codes and clear the diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 2471 FMI 03 is active before performing this procedure.Test Step 1. CHECK THE GROUND CIRCUIT OF THE SWITCH IN THE HARNESS
Disconnect the negative battery cable and turn the key start switch to the OFF position.
Disconnect the machine harness connector(s) from the ECM.
Measure the resistance from Frame Ground of the machine to contact A (wire 200-BK) .Expected Result:The resistance is less than 5 ohms.Results:
OK - The resistance is less than 5 ohms. The circuit is correct. Proceed to Test Step 2.
NOT OK - The resistance is greater than 5000 ohms. The circuit is open. The machine harness has failed.Repair: Repair the machine harness or replace the machine harness.STOPTest Step 2. CHECK THE SWITCH CIRCUITS FOR A SHORT TO THE +BATTERY CIRCUIT
The machine harness connector(s) remains disconnected from the ECM.
The key start switch remains in the OFF position.
Disconnect the Door switch at the connector to the machine harness.
At the machine harness connector for the ECM, measure the resistance from contact J2-37 (wire G943-BU) and contact J2-29 (wire G944-YL) of the machine harness to all the contacts that are used in the machine harness connectors for the ECM.Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The harness is correct. Proceed to Test Step 3.
NO - One or more of the measurements were less than 5 ohms. There is a short in the machine harness.Repair: The short is between wire G943-BU and the circuit with the lowest resistance measurement or the short is between wire G944-YL and the circuit with the lowest resistance measurement. Repair the machine harness or replace the machine harness.STOPTest Step 3. CHECK THE SWITCH CIRCUITS IN THE HARNESS
The machine harness remains disconnected from the ECM and the switch.
At the harness connector for the switch, connect a jumper wire between contact B (wire G943-BU) and contact C (wire G944-YL).
At the harness connector for the ECM, measure the resistance from contact J2-37 (wire G943-BU)


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