FILM-D6T XE XW 4645483 - Caterpillar

Illustration 1 g02643318
Connections of the hystat controllerThis diagnostic code is associated with the Powertrain Speed Range Control Position Sensor. The FMI 08 diagnostic means that the ECM has determined that the signal frequency or the signal pulse width is not within the expected range.The possible causes of this condition are listed:
The signal circuit is open intermittently or the sensor is disconnected.
The sensor may have failed.
The ECM may have failed. This is unlikely.Note: This diagnostic code is caused by an intermittent condition. The diagnostic code may be active for a period of time, then the diagnostic code may clear.Note: This procedure can cause new diagnostic codes to be recorded. Ignore these created diagnostic codes. When the procedure is completed, clear the created diagnostic codes.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 709-OR for the voltage supply.
At the back of the harness connector for the sensor, insert a multimeter probe along contact "2" (wire J764-BR for the ground.
Turn the key start switch and the disconnect switch to the ON position.
Measure voltage from contact "1" (wire 709-OR to contact "2" (wire F773-BR.Expected Result:Voltage Measurement is approximately 10 DCVResults:
OK - voltage measurement IS approximately 10 DCV. Proceed