SHAFT AS. 1W9023 - Caterpillar

and ensure that the connectors are coupled correctly.Use the electronic service tool in order to clear all logged diagnostic codes and then verify that the repair eliminates the fault.STOPTest Step 3. Verify that the Diagnostic Code is Still Active
Turn the keyswitch to the ON position. Wait at least 10 seconds for activation of the diagnostic codes.
Use the electronic service tool to check for active diagnostic codes. Record all active diagnostic codes.
Determine if the fault is related to an open circuit diagnostic code or a short circuit diagnostic code. Expected Result:Either a short circuit diagnostic code is active or an open circuit diagnostic code is active.Results:
OK - Short Circuit - A voltage above normal diagnostic code is active at this time. Proceed to Test Step 4.
OK - Open Circuit - A voltage below normal diagnostic code is active at this time. Proceed to Test Step 5.
Not OK - A short circuit diagnostic code is not active. An open circuit diagnostic code is not active. An intermittent fault may exist.Repair: Use the electronic service tool to perform a "Wiggle Test". If faults are indicated, proceed to the appropriate procedure.STOPTest Step 4. Disconnect The Sensor In Order To Create An Open Circuit
Turn the keyswitch to the OFF position.
Disconnect the connector for the sensor with the short circuit diagnostic code.
Turn the keyswitch to the ON position. Wait for at least 10 seconds for activation of the diagnostic codes.
Use the electronic service tool to check the "Active Diagnostic Code" screen. Check for an open circuit diagnostic code. Expected Result:An open circuit diagnostic code for the disconnected sensor is now active.Results:
OK - A voltage above normal diagnostic code was active before disconnecting the sensor. An open circuit diagnostic code became active after disconnecting the sensor. Proceed to Test Step 6.
Not OK - There is a short circuit between the sensor harness connector and the ECM. Leave the sensor disconnected. Proceed to Test Step 8.Test Step 5. Measure the Sensor Supply Voltage
Turn the keyswitch to the OFF position.
Disconnect the sensor from the engine harness.
Turn the keyswitch to the ON position.
Measure the voltage at the plug for the sensor from the terminal 1 (pressure sensor supply) to terminal 2 (sensor common). Expected Result:The voltage from terminal 1 to terminal 2 measures 4.84 to 5.16 VDC.Results:
OK - The sensor supply voltage is correct. Proceed to Test Step 7.
Not OK - The sensor supply voltage is out of the nominal range. Continue testing the sensor supply circuit.Repair: Go to Troubleshooting, "5 Volt Sensor Supply Circuit - Test".STOPTest Step 6. Determine if the Short Circuit is in the Connector or in the Sensor
Thoroughly inspect the connector for moisture.
Inspect the seals and reconnect the sensor. Refer to Troubleshooting, "Electrical Connectors - Inspect".
If the short circuit diagnostic code reappears, the sensor or the sensor connector has a fault. Expected Result:The short circuit diagnostic code is still present.Results:
OK - There is a fault in the sensor.Repair: Perform the following procedure:
Temporarily connect a new sensor to the harness but do not install