FILTER GP 1Q3363 - Caterpillar

Illustration 1 g01261562
Transmission Output Speed Sensor connectionsThe Machine Control ECM monitors the input data from various machine systems along with the signal from the transmission output speed sensor in order to determine when the machine is traveling. When the ECM determines that the machine is traveling and the transmission speed sensor signal is indicating 0 rpm transmission speed for a period of 10 seconds, then a CID 0191 FMI 11 diagnostic code will be activated.Some conditions that can cause this diagnostic code are listed:
The transmission output speed sensor is not installed correctly or is loose.
There is a problem with power supply.
A short or an open in the signal circuit.
The transmission output speed sensor has failed.
The ECM has failed. This is unlikely.System Response:When the CID 0191 FMI 11 diagnostic code is active, the ECM response will be:
The machine "Limp Home Mode" will be activated.
Engine will be limited to 1300 rpm or less.
Machine functions will be limited.Note: Before proceeding with this procedure, check the axis pin on the travel pedal. The retaining clip and the axis pin must be installed properly before proceeding with this procedure. Verify that the travel pedal sensitivity adjustment is correct. The procedure can be found in the hydraulic testing and adjusting manual.Note: Before performing the following Test Steps, check to see that the speed sensor is mounted securely. If the speed sensor mount is correct and the CID 0191 FMI 11 code is active, proceed to Test Step 1.Test Step 1. CHECK THE POWER AT THE SENSOR
Turn the key start switch and the disconnect switch to the ON position.
Disconnect the machine harness connector from the sensor.
Measure the voltage between the supply contact 3 (wire 308-YL) and