Primary/Secondary Ignition Testing

4. How many volts are there at the ICM connector pin A? __________ volts. What would happen if this voltage wasn’t here? _____________________________________________________________________ _____________________________________________________________________

5. What is the function of pin B at the ICM connector? _____________________________

6. What is the function of pin C at the ICM connector? _____________________________

7. With the ICM connector disconnected, hook up a voltmeter (using the AC voltage function) to terminal B. Crank the engine and read the voltmeter while the engine is cranking. What is your voltmeter reading? ________ VAC (normal reading is 1-4 VAC)

8. What does this voltage reading mean? ________________________________________ ______________________________________________________________________

9. Turn the key off, reconnect disconnected connectors, remove voltmeter and inform your instructor that you have finished.

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