Sonata V6-3.0L (1991)
Top Dead Center (TDC) Sensor: Testing and Inspection
Distributor Exploded View
To test the Crank Angle and the #1 TDC Sensors (cylinder detect signal), located in the distributor, proceed as follows.
Crank Angle And #1 Cyl TDC Sensor Connector Location
Crank Angle And #1 Cyl TDC Sensor Connector Identification
1. Connect a voltmeter between terminal 1 and 2, and 2 and 4, of the crank angle and #1 TDC sensor connector.
Terminal 1: Crank angle signal
Terminal 2: Sensor ground
Terminal 4: #1 TDC signal (cylinder detect signal)
2. Measure the output voltage of the terminals while cranking the engine.
Standard Values
Terminal 1: 2.0 - 2.5V
Terminal 4: 1.8 - 2.5V (needle fluctuates)