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No 5 volt reference signal on my 2014 5.3 Vin C Silverado engine.

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3 years 2 weeks ago #48168 by stanmccle
No 5 volt reference signal on my 2014 5.3 Vin C Silverado engine. was created by stanmccle
This engine is on a test stand. I have converted my engine harness to a stand alone. Have not taken the Vatts out of any of the 4 ECM's which I have tried. Do I need to disable the Vatts in order to get a 5 volt reference? I have all of my 12 volt circuits at the ecm and all of my grounds grounded to my 12 volt battery negative post. Thanks!
stanley mcclellan

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3 years 2 weeks ago #48170 by Chad
Replied by Chad on topic No 5 volt reference signal on my 2014 5.3 Vin C Silverado engine.
If the ECM has all its powers and ground, and they are all good, you should have a 5v Ref. I would check your wiring harness to make sure the 5v Ref is not shorted.
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right. :-)

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3 years 2 weeks ago #48171 by stanmccle
Replied by stanmccle on topic No 5 volt reference signal on my 2014 5.3 Vin C Silverado engine.
I do not have any 5 volt reference signals. Can 1 shorted circuit disable all of them? Thanks!
stanley mcclellan

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3 years 2 weeks ago #48172 by Chad
Replied by Chad on topic No 5 volt reference signal on my 2014 5.3 Vin C Silverado engine.

stanmccle wrote: Can 1 shorted circuit disable all of them?


Yes.
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right. :-)

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