Note: The S89A does not include a spark generator circuit. The S89A has an internal ... Turn the power on to energize the control module; begin spark ignition; immediately start timing. 3. Determine ...

Q: My 2002 Buick LeSabre has 98,887 miles on it. Its ignition control module is failing. Since 2014 I have replaced it three times. Can you please tell why my control module keeps failing?