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PUMP GP- 5087885 - Caterpillar

5087885 PUMP GP- Caterpillar parts PUMP
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Caterpillar 5087885 PUMP GP-

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Illustration 1 g01216611
Schematic of the Hoe Auxiliary Valve #2 Port A SolenoidThis diagnostic code is associated with the Hoe Auxiliary Valve #2 Port A Solenoid. The FMI 03 means that the ECM has determined that the voltage of the solenoid circuit is above normal. The possible causes of the diagnostic code are listed:
The solenoid has failed.
The energize circuit of the solenoid is shorted to the +battery circuit.
The ECM had failed. This is unlikely.Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear these diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 2244 FMI 03 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.Note: Before performing this procedure, inspect the harness connectors that are involved in the 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. If a problem with a connection is found, correct the problem and verify that this diagnostic code is active before performing this procedure. System Response:
The system will not initialize after power is cycled.
The hydraulic functions for the extend, retract, reverse and forward are lost after power is cycled.
There will be no effect to the systems after powerup until the next reset of the valve ECM.Test Step 1. CHECK THE ENERGIZE CIRCUIT OF THE SOLENOID FOR A SHORT TO THE +BATTERY CIRCUIT.
Turn the key start switch and the disconnect switch to the ON position.
Disconnect the wires from the back of the connector at the ECM.
At the machine harness connector for the solenoid, measure the voltage from contact 1 (wire T970-GY) to frame ground. At the machine harness connector for the solenoid, measure the voltage from contact 2 (wire E540-PK) to frame ground. Expected Result:The voltage is 0 VDC.Results:
OK - There are no shorts in the wires. Proceed to Test Step 2.
NOT OK - A voltage is present in the wires. There is a short in the machine harness or in the wires. The short is to a separate voltage source.Repair: Repair the machine harness or replace the machine harness. Ensure that the fix has corrected the problem.STOPTest Step 2. CHECK THE OPERATION OF THE ECM.The disconnect switch and the key start switch remain in the OFF position. The machine harness connectors for the solenoid and the ECM remain disconnected.
Use a wire removal tool in order to remove the energize wire for the solenoid from the machine harness connector for the ECM. Remove (wire T970-GY) and the socket at connector contact J1-61 from the machine harness connector.
Reconnect the machine harness connectors to the ECM.
Turn the disconnect switch and the key start switch to the ON position.
Observe the status of the active diagnostic code.Expected Result:The diagnostic code of a FMI 03 changes to a FMI 05.Results:
OK - The FMI 03 changes to a FMI 05. The FMI 05 was activated after the energize

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