GEAR AS-IDLER 2706217 - Caterpillar

Illustration 1 g02038981
Schematic of the "Travel Alarm" CircuitThis diagnostic code is associated with the travel alarm. The FMI 06 diagnostic code means that the Machine ECM has determined that the current is above normal.The possible causes of this failure are listed below:
The travel alarm circuit is shorted to ground.
The travel alarm has failed.
The Machine ECM has failed. This is unlikely.When this failure occurs, a warning is displayed. The travel alarm will not sound when this failure is present. Note: The following test procedure may create other failures. Ignore these created failures and clear the failures when the original failure is corrected. Test Step 1. CHECK THE TRAVEL ALARM.
Turn the disconnect switch and the key start switch to the ON position. Do NOT start the engine.
Ensure that the service code CID 0376 FMI 06 is active.
Disconnect the travel alarm from the machine harness.
Observe the status of the diagnostic code.Expected Result:The diagnostic code CID 0376 FMI 06 has changed to CID 0376 FMI 05. Results:
YES - The diagnostic code CID 0376 FMI 06 has changed to CID 0376 FMI 05. The circuit is correct. Repair: Replace the travel alarm.STOP
NO - The failure remains active. Proceed to Test Step 2.Test Step 2. CHECK THE SIGNAL CIRCUIT FOR A SHORT TO GROUND.
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness from the travel alarm.
Disconnect the machine harness connectors J1 and J2 from the Machine ECM.
At the machine harness connector , measure the resistance from contact C2-12 of the switch panel (wire 321-BR) to all possible source of ground. Expected Result:The resistance measurements should be greater than 5000 ohms.Results:
OK - The resistance measurements were greater than 5000 ohms. The harness is correct. Proceed to Test Step 3.
NOT OK - The resistance is less than 5000 ohms. The harness is incorrect. The short is between the signal circuit (wire 321-BR) and the circuit with the lowest 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.
Clear all active codes.
Operate the machine.
Observe the status of the diagnostic codes. Expected Result:The diagnostic code CID 0376FMI 06 is no longer active. Results:
YES - The diagnostic code CID 0376FMI 06 is no longer active. The failure does not exist at this time. Repair: The initial failure was probably caused by a poor electrical connection or a short at one of the harness connections that was disconnected and reconnected. Resume normal machine operation. STOP
NO - The diagnostic code CID 0376FMI 06 is active. The failure has not been corrected. The ECM has failed. Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this CID 0376FMI 06 procedure again. If the cause of the failure is not found, replace the ECM.STOP