GROMMET 5P8524 - Caterpillar

Illustration 1 g00862550
Schematic for the Lift Position Sensor (Joystick Control)This diagnostic code is recorded when the ECM determines that the signal from the lift position sensor (joystick control) is too high. The position sensor is a PWM sensor.The possible causes for this diagnostic code are listed:
The position sensor has been rotated above the calibrated operating range.System Response:The machine response is listed:
If the diagnostic code is active for at least three seconds, the 352-13 diagnostic code will be active. The 352-00 diagnostic code will become inactive.Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear the diagnostic codes when the original diagnostic code is corrected. Note: Ensure that the diagnostic code is active.Test Step 1. CHECK THE ALIGNMENT OF THE POSITION SENSOR
Check the mounting hardware for the lever position sensor. The fasteners should be tight. If the sensor shows any signs of damage the hardware should be replaced.
Check the duty cycle of the position sensor. In order to measure the duty cycle of the position sensor, use a 9U-7330 Digital Multimeter and a 7X-1710 Multimeter Probe. At the implement ECM, use contact J2-35 and contact J1-15, J1-16. Move the joystick control to the full travel in both directions.Expected Result:The duty cycle should be between 10% and 90%.Results:
YES - The duty cycle is correct.Repair: Calibrate the position sensor. Stop.
NO - The duty cycle is not correct.Repair: Replace the position sensor. Calibrate the new sensor. Check for an active code. Stop.