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LINES GP-DRAIN 3157278 - Caterpillar



3157278 LINES GP-DRAIN Caterpillar parts LINES
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Alternative (cross code) number:
CA3157278
315-7278
3157278
Caterpillar 3157278 LINES GP-DRAIN

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Illustration 1 g06000131
Connections of the Autolube Solenoid
This diagnostic code is associated with the Autolube Solenoid. The code FMI 03 means that the ECM has determined that the voltage is above normal.The possible causes of the diagnostic code are listed below:
The energize circuit of the solenoid is shorted to the +battery circuit.
The ECM has failed. The failure of the ECM is unlikely. 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 the connections in the circuit are clean and secure. 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. Ensure that the diagnostic code of CID 0378 FMI 03 is active before performing this procedure.Note: Use a digital multimeter for the measurements in this procedure.System Response:When this diagnostic code is active, the ECM will turn off the current to the failed solenoid.Test Step 1. CHECK THE SOLENOID CIRCUIT FOR A SHORT TO THE +BATTERY CIRCUIT.
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness from the solenoid and the ECM.
At the machine harness connector for the ECM, measure the resistance from contact J1-52 (wire 801-PK(Pink)) to all contacts that are used in the machine harness connectors for the ECM.Expected Result:Each resistance measurement should be greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The machine harness is correct. Proceed to test step 2.
NOT OK - Each resistance measurement is not greater than 5000 ohms. There is a short in the machine harness. The short is between contact J1-52 (wire 801-PK(Pink)) and the circuit with the low resistance measurement. Repair the machine harness or replace the machine harness.STOPTest Step 2. CHECK THE OPERATION OF THE ECM.The disconnect switch and the key start switch remain in the OFF position. The machine harness connectors for the solenoid and the ECM remain disconnected.
At the J1 connector for the ECM, use a wire removal tool to remove wire 801-PK(Pink)from contact J1-52.
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 diagnostic code.Expected Result:The FMI 03 changes to an FMI 05 after the wire is disconnected.Results:
YES - The FMI 03 changes to FMI 05 after the wire is disconnected. The ECM has responded correctly


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