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Dan_P · 08-28-2021, 03:05 AM

Reviving an old thread here. I'm having the same issue as the original post...and going crazy trying to chase this down.

I'm on my 2nd external VR and both have the same buzzing (ie not a bad part).

Reading through VetteVet recommendations.
- I confirmed 12V on red.
- Blue and White continuity test passed.
- On Brown I'm getting 3V with key on (vs 12V as stated above) and 0V with key off (0V above). Any ideas to why I'm getting 3V instead of 12V?

RED72blazer - How did you solve this? Anything you can share?

Thanks!!

08-28-2021, 03:05 AM	#10
Dan_P Registered User Join Date: Oct 2019 Location: Los Gatos, CA Posts: 10	Re: buzzing external voltage regulator 72 K5 blazer Reviving an old thread here. I'm having the same issue as the original post...and going crazy trying to chase this down. I'm on my 2nd external VR and both have the same buzzing (ie not a bad part). Reading through VetteVet recommendations. - I confirmed 12V on red. - Blue and White continuity test passed. - On Brown I'm getting 3V with key on (vs 12V as stated above) and 0V with key off (0V above). Any ideas to why I'm getting 3V instead of 12V? RED72blazer - How did you solve this? Anything you can share? Thanks!!