Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Have a short 5v ref. the module wants to see less then 4.9v checked at module has 5.04v. My question is other then a fault in with the regulator could there be another alternative that would cause the voltage to rise. I did check for voltage with module unpluged.
Some more context would make it easier to answer your question.
Year, make, model, codes, manual/auto HVAC, description of the issue you are trying to solve...
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