Camshaft Position Sensor: Testing and Inspection

Crank Angle And #1 TDC Sensor Location:

To test the Crank Angle and the #1 TDC Sensors, located in the distributor, proceed as follows.

Crank Angle and #1 TDC Test Hook-up:

Crank Angle and #1 TDC Terminal identification:

1. Connect a voltmeter between terminal 1 and 2, and 1 and 3.
2. Measure the output voltage of the terminals while cranking the engine.

Standard Values
Terminal 2: 0.2 - 1.2V (needle fluctuates)
Terminal 3: 1.8 - 2.5V

Crank Angle And #1 TDC Sensor System:

3. When the voltage is abnormal, check the sensor power and ground circuits. If nothing unusual is found, disassemble and inspect the distributor.