Acc. voltage
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Joined: Jul 2018
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Acc. voltage
I'm just wondering,i found out what the amp draw was ... It was my brand new stereo that has to go back.. lol but when I tested the acc lead going to the radio it goes from 12 then drops down to like 3 volts then back up to 12 or 9.. what gives here....
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Joined: Jul 2006
Posts: 7,555
There’s two power circuit feeds and/or protections for the radio , when you say ACC, do you mean hot at all times/KAM for the audio unit?
Or, the voltage drop out is at the connector when the key is in ACC?
Voltage checked at the power distribution box, or at the connector pinout itself?
Or, the voltage drop out is at the connector when the key is in ACC?
Voltage checked at the power distribution box, or at the connector pinout itself?
Super Moderator
Joined: Jul 2006
Posts: 7,555
Are you saying you pulled the fuse then checked at the radio connector?
What I meant was,, remove the fuse and with the Key ON you’ll have voltage present on ‘one’ of the leg sockets for the fuse/s.. One fuse will have Key On switched power distribution, the other fuse is Hot at all times...Does the voltage fluctuations happen there?
Reason I ask is, I’ve seen some types of fuse taps/adapters that partner alongside the fuse leg,, and sometimes what happens is the leg of fuse is thicker and can over stress the tension hold on the fuse when inserted causing contact issues after the adapter has been removed.
May not be your case, but checking voltage coming out of the panels might help point to a direction to go..
What I meant was,, remove the fuse and with the Key ON you’ll have voltage present on ‘one’ of the leg sockets for the fuse/s.. One fuse will have Key On switched power distribution, the other fuse is Hot at all times...Does the voltage fluctuations happen there?
Reason I ask is, I’ve seen some types of fuse taps/adapters that partner alongside the fuse leg,, and sometimes what happens is the leg of fuse is thicker and can over stress the tension hold on the fuse when inserted causing contact issues after the adapter has been removed.
May not be your case, but checking voltage coming out of the panels might help point to a direction to go..
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