MANIFOLD 9P9163 - Caterpillar

Illustration 1 g01197340
Schematic for the Tilt Lever Position SensorThis diagnostic code is recorded when the ECM determines that the signal for the tilt lever position sensor has an abnormal pulse width, abnormal frequency, or an abnormal period. The tilt lever position sensor is a PWM sensor. The signal wire for the tilt lever position sensor connects to connector contact J2-25 (wire H711-GN) of the ECM.The possible causes for this diagnostic code are listed:
The circuit for the +battery to the sensor has a intermittent connection.
The return circuit from the sensor has a intermittent connection.
The signal circuit from the sensor has a intermittent connection.
The sensor has failed.System Response:The machine response is listed:
The tilt function will not operate while the diagnostic code is active.Note: Ensure that the diagnostic code is active.Test Step 1. CHECK THE SENSOR.
Observe the ON/OFF status of the diagnostic code indicator.
Disconnect the harness from the sensor.Expected Result:The diagnostic code is active.Results:
YES - The diagnostic code is active. The sensor is not causing the diagnostic code. Proceed to test step 2.
NO - The diagnostic code is inactive.Repair: The sensor has failed. Replace the sensor. Stop.Test Step 2. CHECK THE HARNESS.
The sensor remains disconnected from the harness.
Turn the disconnect switch to the OFF position.
Disconnect the harness from the ECM.
At the harness connector for the sensor, measure the resistance between signal contact 3 (wire H711-GN) and ground.Expected Result:The resistance is greater than 5000 Ohms.Results:
YES - The resistance is greater than 5000 Ohms.Repair: The harness circuit resistance is correct. It is unlikely that an ECM has failed. Exit this procedure. Perform this troubleshooting procedure again. If the diagnostic code is not found, replace the ECM. See Testing and Adjusting, "Electronic Control Module (ECM) - Replace". Stop.
NO - The resistance is less than 5000 Ohms. The harness has failed.Repair: There is a short between ground and the signal circuit in the harness. Repair the harness or replace the harness. Stop.Test Step 3. CHECK THE OUTPUT OF THE SENSOR.
Reconnect the machine harness connectors to the ECM. Reconnect the machine harness connector to the sensor.
At the harness connector for the sensor, connect the positive lead from the multimeter to contact 3. Use the 7X-1710 Multimeter Probe .
At the harness connector for the sensor, connect the negative lead from the multimeter to contact 2. Use the 7X-1710 Multimeter Probe .
Turn the disconnect switch and