3904353 UNDERCARRIAGE AR Caterpillar parts 308E SR UNDERCARRIAGE
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MINI HYD EXCAVATOR,
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Compatible equipment models: 3904353:
MINI HYD EXCAVATOR 308E SR Caterpillar
Illustration 1 g02757396
Schematic of the "Traction Control System Proportional" solenoid
This diagnostic code is associated with the "Traction Control System (TCS) Proportional" solenoid valve. The FMI 06 diagnostic code means that the ECM has determined that the current of the solenoid is above normal. The possible causes of this diagnostic code are listed below:
The energize circuit of the solenoid is shorted to ground.
The solenoid has failed.
The Brake ECM has failed. This situation is unlikely. 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 0719 FMI 06 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.System Response:The diagnostic code will be logged into memory and the "Traction Control System (TCS)" will be disabled.Test Step 1. CHECK THE SOLENOID.
Turn the disconnect switch and the key start switch to the ON position. Do not start the engine.
Observe the status of the diagnostic code.
Disconnect the solenoid with the active diagnostic code from the machine harness. Expected Result:The CID 0719 FMI 06 diagnostic code changes to a CID 0719 FMI 05 diagnostic code when the solenoid is disconnected.Results:
YES - The CID 0719 FMI 06 diagnostic code changes to a CID 0719 FMI 05 diagnostic code when the solenoid is disconnected. The circuit is correct.Repair: The solenoid has failed. Repeat this test "CHECK THE SOLENOID" to verify the solenoid failure. Replace the solenoid.STOP
NO - The CID 0719 FMI 06 diagnostic code remains active. Proceed to Test Step 2.Test Step 2. CHECK THE ENERGIZE CIRCUIT OF THE SOLENOID FOR A SHORT TO GROUND.
Turn the key start switch and the disconnect switch to the OFF position.
The solenoid remains disconnected from the machine harness.
Disconnect the machine harness connectors from the ECM.
At the machine harness connector, measure the resistance from the signal contact J1-48 (wire 773-GY(Grey)) to all contacts that are used in the machine harness connectors for the ECM. Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The machine harness is correct. Proceed to Test Step 3.
NOT OK - Each resistance measurement is not greater than 5000 ohms. There is a short in the machine harness. The short is between J1-48 (wire 773-GY(Grey)) and the circuit with the low resistance measurement.Repair: Repair or replace the machine harness. STOPTest Step 3. CHECK IF THE DIAGNOSTIC CODE REMAINS.
Inspect the harness connectors. Clean the contacts of the harness connectors.
Reconnect all harness connectors.
Turn the disconnect switch and the key start switch to the ON position.
Operate the machine.
Check the status of the CID 0719 FMI 06 diagnostic code. Expected Result:The CID 0719 FMI 06 diagnostic code is active. Results:
YES - The CID 0719 FMI 06 diagnostic code is active. The diagnostic code has not been corrected. The ECM may have failed.Repair: A failure of the Brake ECM is unlikely. Exit this procedure and perform this procedure again. If
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