No spark, no ground to coil?

[PlayingWithTBI]

Here's a link on "how to". This is mainly for ECM/PCM connectors but will give you an idea...

Moving ECM Harness Connector Pins

 

[1993GMCC2500SLX]

Hi!

I got some issues with no spark since last friday, been poking around with my volt-meter and I found that there is no ground, or 12v for that matter to the coil. There is both 12v and ground to the ICM.
I don't know if its supposed to give me a reading on the volt-meter or not but...
No readings with key in on but engine off or while cranking.

Could it be some ground issue? If so, is it possible to cut the black/white cable and ground it somewhere?

Thanks!

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Isn't the bracket it's coil ground to the motor?!

 

[Lou Merrell]

The ICM grounds the coil when told to by the ECM. There could be other issues.

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Here's a troubleshooting guide that may help.

How To Test The GM Distributor Mounted Ignition Module

GM 4.3L, 5.0L, 5.7L Index of Articles

easyautodiagnostics.com

I love that page. Good place to learn.