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ENGINE AR-COMPLETE 1399781 - Caterpillar



1399781 ENGINE AR-COMPLETE Caterpillar parts C-12 ENGINE
Rating:
13
Alternative (cross code) number:
CA1399781
139-9781
1399781
Caterpillar 1399781 ENGINE AR-COMPLETE

Buy ENGINE AR-COMPLETE 1399781 Caterpillar genuine, new aftermarket tractor parts with delivery
TRUCK ENGINE,

Compatible equipment models: 1399781:

TRUCK ENGINE  C-12   Caterpillar
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Table 3
FMI 6 Troubleshooting
Troubleshooting Test Steps Values Results
1. Check The Solenoid
A. Turn the key start switch and the disconnect switch OFF.
B. Disconnect the solenoid from the machine harness.
C. Turn the key start switch and the disconnect switch ON. Do not start the engine.
D. Observe the status of the diagnostic code.
The FMI 6 changes to an FMI 5 after the solenoid is disconnected. OK - The circuit is correct. The solenoid has failed.
Repair: Repeat the test. Verify the solenoid failure. Replace the solenoid.
Proceed to Test Step 3.
NOT OK - The diagnostic code remains active.
Proceed to Test Step 2.
2. Check Machine Harness For A Short To Ground
A. The machine harness remains disconnected from the solenoid.
B. Turn the key start switch and the disconnect switch OFF.
C. Disconnect the harness connectors from the ECM.
D. At the harness connector for the ECM, measure the resistance between the solenoid signal contact and all ground contacts.
Each reading is greater than 5K Ω. OK - Machine harness correct.
Proceed to Test Step 3.
NOT OK - One or more of the resistance measurements are less than 5 Ω. A short circuit exists in the machine harness.
Repair: A short circuit exists between the signal wire and the circuit with the low resistance. 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.
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 13 Troubleshooting
Troubleshooting Test Steps Values Results
1. Check The Calibration
A. Perform the calibration procedure for the solenoid. Refer to the Systems Operation, Testing and Adjusting,

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