NEST A.-SHEAVE 7F9566 - Caterpillar

Illustration 1 g02217455
Left steering cylinder position sensorThis diagnostic code indicates the brake ECM has determined the left steering cylinder position sensor is out of calibration. The position sensor is a PWM sensor that operates at a frequency of approximately 500 80 Hz. The voltage of the signal range is from 0 to 5 VDC. The duty cycle of the signal varies from approximately 10 percent at the full forward position to approximately 90 percent at the full rearward position. When the steering control handle is at the center position, the duty cycle is approximately 50% and the voltage is approximately 2.5 VDC.This code can be caused by:
Initial machine installation
New sensor installation
Brake ECM replacement
New software installed
Axle replacement or modification
Changed machine calibrated load
Failed brake ECM Test Step 1. RECALIBRATE THE POSITION SENSOR
Use Cat ET to recalibrate the position sensor. Follow the directions on the Cat ET screen.A successful calibration causes this diagnostic code to become inactive.Expected Result:This diagnostic code is inactive.Results:
OK - This diagnostic code is inactive.Repair: Resume normal machine operationSTOP
NOT OK - This diagnostic code remains active.Repair: Exit this procedure.Perform this procedure again. If the failure is not found, contact your technical communicator.STOP