BUSHING 3512184 - Caterpillar

Illustration 1 g01445580
Schematic of the Toggle Switch (Transmission Lockout)This diagnostic code is associated with the Toggle Switch (Transmission Lockout). The switch is connected to two inputs of the ECM. One of the inputs is open and the other input is grounded during proper operation. Refer to table 1.
Table 1
Status of Transmission Lock Switch    
Transmission Lock Switch    J2-47    J2-44    
Locked     Closed     Open    
Unlocked     Open     Closed    The FMI 04 means that the ECM has determined that the "Normally Open" and "Normally Closed" circuitsare 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 0348 FMI 04 is active before performing this procedure.System Response:When this diagnostic code occurs, there is no change in the system operation. The transmission will remain in the last known state, either "locked" or "unlocked".Test 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Turn the key start switch and the disconnect switch to the ON position.Expected Result:The CID 0348 FMI 04 has been replaced by CID 0348 FMI 03.Results:
OK - The CID 0348 FMI 04 has been replaced by CID 0348 FMI 03. The machine harness and the ECM are correct. Proceed to Test Step 3.
NOT OK - The CID 0348 FMI 04 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 J2-47 (wire T908-BU) and J2-44 (wire T909-YL) of the machine harness to all the contacts that are used in machine harness connectors for the 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 5 ohms. The harness has failed. The short is between J2-47 (wire T908-BU) and the circuit with the lowest resistance or the short is between J2-44 (wire T909-YL) 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.
Place the Transmission Lock switch into the UNLOCKED position.
Connect one lead from a multimeter to contact 5 (wire 202-BK) of the harness connector for the switch.
Connect the other lead from a multimeter to contact 4 (wire T908-BU) of the harness connector for the switch.
Measure the resistance between contact 5 (wire 202-BK) and contact 6 (wire T908-BU). Note