PISTON-LOCK-UP CLUTCH 1T1363 - Caterpillar

Table 3
FMI 05 Troubleshooting
Troubleshooting Test Steps Values Results
1. Check The Relay
A. Turn the key start switch and disconnect switch OFF.
B. Disconnect the relay from the wiring harness.
C. At the machine harness connector for the relay, place a jumper wire between the signal wire and the signal return.
D. Turn the key start switch and the disconnect switch ON. Do not start the engine.
E. Observe the status of the diagnostic code.
The diagnostic code changes from an FMI 05 to an FMI 06 after the jumper wire is installed. OK - The harness is correct. The diagnostic code changes from an FMI 05 to an FMI 06 after the jumper wire is installed. The relay has failed.
Repair - Replace the relay.
Proceed to Test Step 3.
NOT OK - The diagnostic code remains active.
Proceed to Test Step 2.
2. Check The Harness For An Open
A. Turn key start switch and disconnect switch OFF.
B. Disconnect the machine harness connectors from the ECM.
C. The jumper wire remains installed.
D. At the ECM machine harness connector, measure the resistance between the signal contact and the return contact.
Each resistance is less than 5 Ω. OK - The resistance is less than 5Ω. The machine harness is correct.
Proceed to Test Step 3.
NOT OK - The resistance is greater than 5 Ω. The resistance measurement is not correct. There is an open circuit in the machine harness.
Repair: Repair or replace the machine harness.
Note: A resistance that is greater than 5 Ω but less than 5K Ω would indicate a loose connection or a corroded connection in the circuit. A resistance measurement that is greater than 5K Ω would indicate an open in the circuit.
Proceed to Test Step 3.
3. Check If The Diagnostic Code Remains
A. Reconnect all harness connectors. Return machine to normal operating condition.
B. Turn the key start switch and the disconnect switch ON.
C. Clear all diagnostic codes.
D. Operate the machine.
E. Stop the machine and engage the safety lock lever.
F. Check if the diagnostic code is active.
The diagnostic code is no longer present. OK - The diagnostic code does not exist at this time. The initial diagnostic code may have been caused by poor electrical connection or short at one of the harness connections. Resume machine operation.
STOP.
NOT OK - The diagnostic trouble code has not been corrected. If the diagnostic code has not been corrected after performing the procedure a second time, the ECM may require replacement.
Prior to replacing the ECM, always contact the Technical Communicator at your dealership for possible consultation with Caterpillar. This consultation may effect repair time.
Follow the steps in Troubleshooting, "ECM - Replace" if the ECM needs to be replaced.
STOP.
Table 4
FMI 06 Troubleshooting
Troubleshooting Test Steps Values Results
1. Check The Relay
A. Turn the key start switch and disconnect switch ON.
B. Observe the status of the diagnostic code.
C. Disconnect the relay from the machine harness.
The FMI 06 changes to FMI 05 when the relay is disconnected. OK - FMI 06 changes to FMI 05 when the relay is disconnected. The harness is correct. The relay has failed.
Repair: Repair or