GASKET KIT 6V8616 - Caterpillar

Illustration 1 g00909150
Illustration 2 g00909153The pressure sensor (1) is located under the middle accumulator. The steering accumulators are located behind the right front wheel.This diagnostic code is associated with the pressure sensor for the steering accumulator. The FMI 08 means that the ECM has determined that the signal frequency or the signal pulse width is not within the expected range. The output frequency of the sensor is approximately 500 Hz. The duty cycle of the signal is proportional to the pressure that is applied. The duty cycle varies from 3% to 95%.The possible causes of this diagnostic code are listed below:
The sensor has failed.
Intermittent connections or poor connections
Mechanical devices are loose.
The ECM has failed. This is unlikely.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 1494 FMI 08 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure. System Response:Since the value for the steering pressure is unknown, the ECM will command the steering pump to the full displacement. 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 7X-1710 Multimeter Probe along the voltage supply wire (contact A).
Turn the key start switch