DISC-RETAINER 5Y0535 - Caterpillar

Illustration 1 g01931593
Schematic of the "Load Sense Reduction Enable" solenoid
This diagnostic code is associated with the "Load Sense Reduction Enable" solenoid. The FMI 06 diagnostic code means that the ECM has determined that there is a short to ground in the circuit. The possible causes of this diagnostic code are listed below:
The energize circuit of the solenoid is shorted to ground.
The solenoid has failed.
The ECM has failed. A failure of the Machine ECM 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 3043 FMI 06 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.Test Step 1. CHECK THE SOLENOID.
Turn the disconnect switch and the key start switch to the ON position. Do not start the engine.
Observe the status of the diagnostic code.
Illustration 2 g01936133
Locking connector for solenoid
Disconnect the solenoid with the active diagnostic code from the machine harness. Note: This solenoid is connected to the wiring harness by a locking connector. The release can only be pressed after the red tab on the connector has been pushed outward. See graphic 2.Expected Result:The CID 3043 FMI 06 changes to a CID 3043 FMI 05 diagnostic code when the solenoid is disconnected.Results:
YES - The CID 3043 FMI 06 diagnostic code changes to a CID 3043 FMI 05 diagnostic code when the solenoid is disconnected. The circuit is correct.Repair: The solenoid has failed. Repeat this test "CHECK THE SOLENOID" in order to verify the solenoid failure. Replace the solenoid.STOP
NO - The CID 3043 FMI 06 diagnostic code remains active. Proceed to Test Step 2.Test Step 2. CHECK THE ENERGIZE CIRCUIT OF THE SOLENOID FOR A SHORT TO GROUND.
Turn the key start switch and the disconnect switch to the OFF position.
The solenoid remains disconnected from the machine harness.
Disconnect the machine harness connectors from the ECM.
At the machine harness connector, measure the resistance from the signal contact J2-2 (wire P744-GY(Grey)) to all contacts that are used in the machine harness connectors for the Machine ECM. Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The machine harness is correct. Proceed to Test Step 3.
NOT OK - Each resistance measurement is not greater than 5000 ohms. There is a short in the machine harness. The short is between J2-2 (wire P744-GY(Grey)) and the circuit with the low resistance measurement.Repair: Repair the machine harness or replace the machine harness. STOPTest Step 3. CHECK IF THE DIAGNOSTIC CODE REMAINS.
Inspect the harness connectors and clean the contacts of the harness connectors.
Reconnect all harness connectors.
Turn the disconnect switch and the key start switch to the ON position.
Operate the machine.
Check the status of the CID 3043 FMI 06 diagnostic code. Expected Result:The CID 3043 FMI 06 diagnostic code is active. Results:
YES - The CID 3043 FMI 06 diagnostic code is active. The diagnostic code