How do I check ignition module and the coil?

2005 GMC SIERRA
46,000 MILES • 6 CYL • 2WD • MANUAL
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DUSTINC1983
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  • 1 POST
how do i check ignition module and the coil?
Sep 8, 2009 at 8:52 AM
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SQM
  • Experienced Mechanic
  • 6,383 POSTS
Hello,

The ignition coil can be checked by using a multimeter and getting the internal resistance.

Here is a helpful video:

https://youtu.be/1zQQy9noYQ0

The best to test the module is to remove it and take it to your local auto parts store. They will have special testing equipment that can be used to test the functionality of the ignition control module.

I have attached the replacement instructions below.

Please let me know if you have any questions.
Thank you.
Nov 28, 2021 at 4:34 PM
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