VEE BELT 5M0924 - Caterpillar

Illustration 1 g01984774
Schematic of the Rocker Switch (Implement Lockout)This diagnostic code is associated with the Rocker Switch (Implement Lockout). The switch is connected to two inputs of the Implement ECM. The inputs are "Normally Open" and "Normally Closed". One of the inputs is open and the other input is grounded during proper operation.The FMI 04 diagnostic code means that the Implement ECM has determined that the "Normally Open" and "Normally Closed" circuits are grounded.Note: The following test procedure may create other diagnostic codes. Ignore these diagnostic codes and clear these diagnostic codes when the original diagnostic code has been corrected.Ensure that the diagnostic code of CID 0490 FMI 04 is active before performing this procedure.System Response:The implements will not work.
Table 1
Switch Continuity    
Switch / CID Switch
State     Implement ECM
Connector Contact Number     Wire Number     Status    
CID 0490 Implement Lockout Switch     Not Locked     J1-33 "N/O" (1)     E917-WH     O (2)    
J1-34 "N/C" (3) E918-GN     C (4)    
Locked J1-33 "N/O"     E917-WH     C    
J1-34 "N/C" E918-GN     O    
( 1 ) Normally Open Position
( 2 ) Open
( 3 ) Normally Closed Position
( 4 ) GroundedTest Step 1. CHECK THE SWITCH
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness from the switch.
Turn the key start switch and the disconnect switch to the ON position.Expected Result:The CID 0490 FMI 04 diagnostic code has been replaced by a CID 0490 FMI 03 diagnostic code.Results:
OK - The CID 0490 FMI 04 diagnostic code has been replaced by a CID 0490 FMI 03 diagnostic code. The machine harness and the ECM are correct. Proceed to Test Step 3.
NOT OK - The CID 0490 FMI 04 diagnostic code is still active. Proceed to Test Step 2.Test Step 2. CHECK THE HARNESS
Turn the disconnect switch and the key start switch to the OFF position.
The machine harness remains disconnected from the switch.
Disconnect the machine harness connector(s) from the ECM.
Measure the resistance between contacts J1-33 (wire E917-WH) and J1-34 (wire E918-GN) of the machine harness to all the contacts that are used in machine harness connectors for the Implement ECM.Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
YES - Each resistance measurement is greater than 5000 ohms. The ECM has failed.Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this procedure again. If the cause of the diagnostic code is not found, replace the ECM. See Testing And Adjusting, "Electronic Control Module (ECM) - Replace".STOP
NO - One or more of the resistance measurements are less than 5000 ohms. The harness has failed. The short is between J1-33 (wire E917-WH) and the circuit with the lowest resistance or the short is between J1-34 (wire E918-GN) and the circuit with the lowest resistance. Repair: Repair the wiring harness or replace the wiring harness.STOPTest Step 3. CHECK THE OPERATION OF THE SWITCH
The machine harness remains disconnected from the switch.
Connect one lead from a