HOSE 3593863 - Caterpillar

Illustration 1 g01247326
Decking Blade Control Position sensor connectionsThis diagnostic code is associated with the winch control handle position sensor. The FMI 04 means that the ECM has determined that the voltage of the PWM signal sensor signal is below normal.The possible causes of this diagnostic code are listed:
The sensor power supply circuit is open.
The signal circuit is shorted to ground.
The sensor has failed.
The ECM has failed. This is unlikely. Note: Ensure that CID 2267 FMI 04 active before performing this procedure. Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear the diagnostic codes when the problem has been corrected.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 while disconnecting the sensor from the machine harness.Expected Result:The diagnostic code will remain active if the sensor is not the cause of the diagnostic code. The sensor is the cause of the diagnostic code if the diagnostic code is NO longer active.Results:
OK - The diagnostic code remains active. The sensor has not failed. Proceed to Test Step 2.
NOT OK - The diagnostic code is NO longer active. The machine harness and the ECM are operating correctly.Repair: The sensor has failed. Replace the sensor. Calibrate the sensor. Use the Cat ET service tool in order to calibrate the new sensor. Verify that the new sensor 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 J1 and J2 machine harness connectors from the Master ECM.
At machine harness connector J2 for the ECM, measure the resistance from contact J2-40 (wire P729-BR) to all possible sources of ground. Measure the resistance to all contacts of the machine harness connectors of 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 - One or more of the resistance measurements is NOT correct. The machine harness has failed.Repair: 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 harness connectors and clean the contacts of the harness connectors and check the wires for damage to the insulation that is caused by excessive heat, battery acid, or chafing.
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the sensor circuit.
Reconnect all harness connectors. Make sure that the connectors are fully seated and the clips for each connector are completely fastened.
Turn the disconnect switch and the key start switch to the ON position.
Operate the machine.
Determine if the CID 2267 FMI