CLIP 4624649 - Caterpillar

Illustration 1 g01079534
schematic for hydraulic sensorThis diagnostic code is associated with the hydraulic sensor (Pressure). The FMI 00 means that the ECM has determined that the signal of the sensor is above the normal range. The possible causes of this diagnostic code are listed below:
The sensor has failed.
The signal circuit of the sensor is shorted to the + battery circuit.
The sensor needs to be calibrated.
The ECM has failed. This is unlikely.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.Use the 146-4080 Digital Multimeter for the measurements in this procedure.System Response:When this diagnostic code is active the mode for the hydraulic control system should not change.Test Step 1. INSPECT THE SENSOR.
Perform a visual inspection of the sensor, the wiring for the sensor and the hardware that is associated with the sensor.Expected Result:There is no apparent damage to the sensor, the wiring for the sensor or the hardware that is associated with the sensor.Results:
OK - There is no apparent damage to the sensor, the wiring for the sensor or the hardware that is associated with the sensor. Proceed to Test Step 2.
NOT OK - There is apparent damage to the sensor, the wiring for the sensor or the hardware that is associated with the sensor. Repair: Replace the damaged part. Stop.Test Step 2. 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