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| Illustration 1 | g01091954 |
This is a schematic of the Trigger Switch. | |
This diagnostic code is associated with the Trigger Switch. The switch is connected to one input of the ECM. The input is Normally Open.
The FMI 02 means that the ECM has determined that the Data is erratic, intermittent, or incorrect.
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 1718 FMI 02 is active before performing this procedure.
System Response:
When this diagnostic code is active, the switch will fail to control the auxiliary select solenoid and all of the following auxiliary functions.
- AUX 1
- AUX 2
- Quick Coupler
- Access Platform Rotate
- Continuous Flow is Disabled.
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 1718 FMI 02 has been cleared.
Results:
- OK - The CID 1718 FMI 02 has been cleared. The machine harness and the ECM are correct. Proceed to Test Step 3.
- NOT OK - The CID 1718 FMI 02 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 contact J2-23 (wire 792-OR) 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 J2-23 (wire 792-OR) and the circuit with the lowest resistance.
Repair: Repair the wiring harness or replace the wiring harness.
STOP
Test Step 3. CHECK THE OPERATION OF THE SWITCH IN THE NORMALLY OPEN POSITION
- The machine harness remains disconnected from the switch.
- Connect one lead from a multimeter to contact 10 (wire 792-OR) of the harness connector for the switch.
- Connect the other lead from a multimeter to contact 7 (wire J764-BR) of the harness connector for the switch.
- Measure the resistance between contact 10 (wire 792-OR) and contact 7 (wire J764-BR). Note the resistance.
Expected Result:
The resistance from contact 10 (wire 792-OR) to contact 7 (wire J764-BR) is greater than 5000 ohms.
Results:
- YES - The resistance that is measured is greater than 5000 ohms. Proceed to Test Step 4.
- NO - The resistance from contact 10 (wire 792-OR) to contact 7 (wire J764-BR) is not greater than 5000 ohms. The switch has failed.
Repair: Replace the joystick grip.
STOP
Test Step 4. RECHECK THE SWITCH IN THE ACTIVATED POSITION
- The machine harness remains disconnected from the switch.
- Connect one lead from a multimeter to contact 10 (wire 792-OR) of the harness connector for the switch.
- Connect the other lead from a multimeter to contact 7 (wire J764-BR) of the harness connector for the switch.
- Press and hold the switch.
- Measure the resistance between contact 10 (wire 792-OR) and contact 7 (wire J764-BR). Note the resistance.
Expected Result:
The resistance from contact 10 (wire 792-OR) to contact 7 (wire J764-BR) is less than 5 ohms. This measurement is opposite of the measurement from the previous Test Step.
Results:
- YES - The resistance from contact 10 (wire 792-OR) to contact 7 (wire J764-BR) is less than 5 ohms. This measurement is opposite of the measurement from the previous Test Step. The switch is operating correctly. Proceed to Test Step 5.
- NO - The resistance measurements have not changed from the previous Test Step. The switch has failed.
Repair: Replace the joystick grip.
STOP
Test Step 5. CHECK IF THE DIAGNOSTIC CODE REMAINS
- Inspect the contacts of the harness connectors and clean the connectors.
- Reconnect all harness connectors.
- Turn the disconnect switch and the key start switch to the ON position.
- Operate the machine.
- Determine if CID 1718 FMI 02 is present.
Expected Result:
The CID 1718 FMI 02 is active.
Results:
- YES - The CID 1718 FMI 02 is active. The diagnostic code has not been corrected. The ECM may have 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 - The CID 1718 FMI 02 is not active. The diagnostic code is NOT present. The diagnostic code does not exist at this time.
Repair: The initial diagnostic code was probably caused by a poor electrical connection or a short at one of the harness connectors that was disconnected and reconnected. Resume normal machine operation.
STOP