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FILM-D6T XW 4645482 - Caterpillar



4645482 FILM-D6T XW Caterpillar parts FILM
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Alternative (cross code) number:
CA4645482
464-5482
4645482
Caterpillar 4645482 FILM-D6T XW

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Illustration 1 g02643318
Connections of the hystat controllerThis diagnostic code is associated with the Powertrain Speed Range Control Position Sensor. This diagnostic code is recorded when the ECM reads the sensor signal as being below normal.The possible causes of this diagnostic code are listed:
Supply wire for the sensor is open.
The sensor signal circuit is shorted to ground.
The sensor has failed.
The ECM has failed. This is unlikely.System Response:A level 2 warning will be generated. The functionality is lost. The ECM cannot increase or the ECM cannot decrease the desired speed. Other sensors can aid in reducing machine speed such as the brake pedal.Note: Ensure that the CID 2500 FMI 04 is active. This procedure can cause new diagnostic codes to be recorded. Ignore these created diagnostic codes. When the procedure is completed, clear the created diagnostic codes.Test Step 1. CHECK THE SENSOR
Turn the disconnect switch and the key start switch to the ON position.
Ensure that the diagnostic code is active.
Observe the status of the diagnostic code. Then, disconnect the sensor from the machine harness.Expected Result:If the sensor is faulty, the CID 2500 FMI 04 diagnostic code will become inactive and a CID 2500 FMI 03 diagnostic code will become active when the sensor is unplugged. The sensor is the cause of the diagnostic code if the CID 2500 FMI 04 diagnostic code is no longer active.Results:
OK - The diagnostic code remains active. The sensor is not faulty. The machine harness may have failed or the ECM may have failed. Proceed to Test Step 2.
NOT OK - The diagnostic code is no longer active. The machine harness and the ECM are operating properly. Repair: Replace the joystick handle. Recalibrate the sensor, if necessary. Refer to Testing and Adjusting, KENR5148, "Calibration" procedure. Verify that the new joystick handle corrects the problem.STOPTest Step 2. CHECK THE SIGNAL CIRCUIT FOR A SHORT TO GROUND
The sensor remains disconnected from the machine harness.
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the "J2" machine harness connector from the ECM.
At the "J2" machine harness connector, measure the resistance from contact "J2-51" wire (J773-OR) to frame ground. Measure the resistance from contact "J2-51" wire (J773-OR) to all of the other contacts that are used in the ECM connectors.Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The harness is correct. Proceed to Test Step 3.
NOT OK - One or more of the resistance measurements is less than 5000 ohms.Repair: The machine harness has failed. There is a short in the machine harness between the signal circuit and the circuit with the low resistance measurement. Repair the machine harness or replace the machine harness.STOPTest Step 3. CHECK THE STATUS OF THE DIAGNOSTIC CODE
Inspect the contacts and clean the contacts of any harness connectors that are disconnected.
Reconnect all harness connectors.
Turn the disconnect switch and the key start switch to the ON position.
Clear all inactive diagnostic codes.
Operate the machine.
Determine if the CID 2500 FMI 04 diagnostic code is active.Expected


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