VALVE GP-BANK 2 1294599 - Caterpillar

Illustration 1 g02476663
Connections of the Machine Feature Alarm
This diagnostic code is associated with the Machine Feature Alarm. The alarm is powered by an "ON/OFF" driver circuit. The FMI 03 diagnostic code is activated when the ECM detects an above normal voltage of the alarm circuit. The following conditions could cause this diagnostic code to be activated:
The energize circuit of the alarm is shorted to another voltage source.
The ECM has failed. This condition is unlikely.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, that all connections are secure and that all connections are 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. 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. Test Step 1. CHECK THE ENERGIZE CIRCUIT OF THE ALARM FOR A SHORT
Turn the disconnect switch and the key start switch to the OFF position.
Disconnect the machine harness connector from the alarm. Disconnect the machine harness connectors J1 and J2 from the ECM.
At the machine harness connectors for the ECM, measure the resistance from contact J2-5 (wire X416-OR(Orange)) to all of the other contacts that are used in the J1 and J2 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 resistance measurement does not indicate a short in the machine harness. Proceed to Test Step 2.
NO - Each resistance measurement is not greater than 5000 ohms. There is a short in the machine harness. Repair: The short is between wire X416-OR(Orange) and the circuit that has a low resistance measurement.For information on testing for short circuits and finding short circuits, refer to Testing and Adjusting, "Wiring Harness (Short Circuit) - Test". Repair the machine harness or replace the machine harness.STOPTest Step 2. CHECK THE OPERATION OF THE ECMThe disconnect switch and the key start switch remain in the OFF position. The machine harness connectors for the alarm and the ECM remain disconnected.
At the machine harness connector J2 for the ECM, use a 151-6320 Removal Tool to remove the alarm wire X416-OR(Orange) and the socket at contact J2-5 from the harness connector.
Reconnect the machine harness J1 and J2 connectors to the ECM.
Turn the disconnect switch and the key start switch to the ON position.
Observe the status of the active CID 2914 FMI 03 diagnostic code. Expected Result:The CID 2914 FMI 03 diagnostic code is no longer active. A CID 2914 FMI 05 diagnostic code is now active.Results:
YES - The CID 2914 FMI 03 diagnostic code is no longer active. A CID 2914 FMI 05 diagnostic code has become active after the alarm circuit is disconnected. The ECM has