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Home >> Infiniti >> 1990 >> M30 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Engine Sensors & Switches >> Sub-Crank Angle Sensor (Q45) Test

Sub-Crank Angle Sensor (Q45) Test

Disconnect harness at sub-crank angle sensor. Remove sensor. Connect 10-megohm DVOM test leads between terminals "A" and "B" of sensor. See Figure . Place voltmeter on low (millivolt) AC volt scale. Turn sensor by hand. Voltmeter should indicate a generated voltage signal. If not replace sensor.