How to Test the Camshaft Position Sensor?

1 Answers
OArcher
07/25/25 4:25pm
Camshaft position sensor testing methods: 1. Using a multimeter: Measure the resistance between sensor terminal 1 and ECU terminal 62, sensor terminal 2 and ECU terminal 76, sensor terminal 3 and ECU terminal 67 with a multimeter. Under normal conditions, the resistance should not exceed 1.5 ohms. If the reading is too high or infinite, the sensor is faulty and requires repair or replacement. 2. Using an oscilloscope: While the engine is running, measure the signal waveform between the signal output terminal and ground terminal of the magnetic camshaft position sensor with an oscilloscope. The waveform displayed on the oscilloscope should be a sine wave with amplitude between 0-5V. The waveform amplitude remains constant, but the frequency increases as engine speed rises.
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