HOUSING 4826769 - Caterpillar

Illustration 1 g02705397
Schematic for the Steering Oil Temperature Sensor
This diagnostic code is recorded when the ECM reads the input signal from the Steering Oil Temperature Sensor and the PWM duty cycle is above normal.The sensor is a PWM sensor that operates at a frequency of approximately 500Hz 200Hz. The sensor sends a PWM input signal to the ECM. The duty cycle of the signal will vary from 5% to 95%.The possible causes of this diagnostic code are listed below:
There is an open in the sensor circuit.
The signal circuit is shorted to another circuit.
The sensor has failed.
The ECM has failed. This condition is unlikely.System Response:
The events related to this sensor signal will not work properly.
Steering filter bypass warnings may not activate.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 has been corrected. Ensure that the diagnostic code of CID 0075 FMI 03 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.Test Step 1. CHECK FOR POWER AT THE SENSOR
Do not disconnect the harness connector from the sensor.
At the back of the harness connector for the sensor, insert a multimeter probe along contact 1 (wire X800-OR(Orange)) for the voltage supply.
Turn the key start switch and the disconnect switch