TURBOCHARGER 4804349 - Caterpillar

connection.
Remove the spoons (multimeter probes) from the connector.
Check for an intermittent problem at the connector for the suspect sensor: Note: Do not disconnect any harness connectors in order to perform this procedure.
Carefully install the spoons (multimeter probes) into the terminal locations for the sensor supply and the analog return. Install the spoons on the sensor side of the connector for the suspect sensor.
Perform a manual wiggle test on the circuit . While you observe the voltage reading on the multimeter, wiggle the wires for the supply and the return at the ECM connector. The voltage reading will not vary more than 0.5 V for a solid electrical connection.
Remove the spoons (multimeter probes) from the connector.
Remove the electrical power from the ECM. Expected Result:The voltage reading did not vary more than 0.5 V during either test.Results:
OK - The voltage reading did not vary more than 0.5 V.Repair: The connections are OK at the connectors. There does not appear to be an intermittent problem in the circuit at this time. Return the engine to service.STOP
Not OK - The voltage reading varied more than 0.5 V during the test.Repair: Disconnect the suspect connector and inspect the connector and the terminals for moisture, damage, and corrosion. Repair the connectors and/or the terminals. Return the engine to service.STOPTest Step 3. Check the Supply Voltage at the Sensor Connector
Disconnect the harness connector for the suspect sensor.
Measure the voltage between the terminals for the sensor supply and the analog return at the harness connector for the suspect sensor. Expected Result:The voltage is