The seals in older connectors my harden and prove impossible to backprobe without damage to the connector. Testing a sensor usually involves using a backprobe pin.ĬAUTION: Backprobing can damage any connector if not done properly. In this lab we will only test the sensor if it is easy to access without damaging any of the wiring. Details on how to do this are in Moodle at #4 Use the information found to connect the lab scope and find a patternĬheck out a Vantage Pro and identify your vehicle to the Vantage Pro using the Component Testing menu. #2 select the component (sensor or actuator) that you want to test, The Vantage Pro will help you do all these tests using the Component Testing feature. #5 - You must show a waveform of one complete revolution of for each sensor. #4 - Capture and save a 3 wire CKP or CMP sensor scope pattern with Engine Running and Engine Cranking. #3 - Capture and save a 2 wire CKP or CMP sensor scope pattern with Engine Running and Engine Cranking -īefore you disconnect the lab scope, show the signature pattern (wave form) to your instructor for a signature #2 - Score over 85% on this Moodle CPK/CMP Sensor Lab quiz The Basics of Crank and Cam Sensors and How to Test Them (Your instructor can recommend a vehicle with CKP and CMP sensors that have easy access)

In this lab you use the Vantage Pro Lab Scope to test 2 and 3 wire sensors commonly used for Cran Kshaft Position (CKP) and Ca Mshaft Position (CMP) sensors.

Auto lab scope