BUSHING 9B4772 - Caterpillar

Illustration 1 g01031558
Schematic for the Position Sensor (Lift) of the Joystick
This diagnostic code is recorded when the implement electronic control module (ECM) determines that the position sensor (lift) of the joystick is out of calibration. The position sensor (lift) of the joystick is a 500 HZ PWM sensor.The possible causes for this diagnostic code are listed:
The joystick has operated outside the calibrated range for more than three seconds.
New software has been installed.
The joystick has never been calibrated.System Response:The machine response is listed:
Implement features will not operate.
The deadband will become wider.Note: Ensure that the diagnostic code is active.Test Step 1. CHECK THE ADJUSTMENT FOR THE SENSOR .
Check the duty cycle of the position sensor (lift) of the joystick. The range setting is between 10% and 90%.
Recheck the diagnostic code.
Ensure that the diagnostic code is active. Expected Result:The diagnostic code indicator is inactive.Results:
YES - The diagnostic code indicator is inactive.Repair: The diagnostic code is not active now. Adjustment corrected the diagnostic code. Clear the diagnostic code. STOP
NO - The diagnostic code indicator is active.Repair: Perform calibration for the Position Sensor for the Joystick Control. Also, ensure that the diagnostic code is active. If the cause is not found, replace the joystick and perform the calibration again.STOP