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Electrical Issue! Flashing Dash Lights! Help!

johnsoncofo

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Hey guys,

I am new to this group but could really use some help. I am stumped. Maybe this issue could be an auxiliary battery issue? I don’t know if my jeep in this year even has one. I just read about it but it’s kind of confusing haha

Info:
2017 Jeep Wrangler Rubicon Recon Edition only 60k miles on it is having some weird issues for sure.

The video shows what it is doing. The past couple months this will happen randomly while driving the sway bar, abs, traction control, and brake lights will start flashing. Once it starts it will do this off and on the whole drive until you turn off.

Then today another issue started. When you put in the key to try to start the car no power turns on. Then if I get out and shut the door. Then get back in the second time to turn on the car it fires right up and all lights come on.

What I have tested and still having issues:

*Tightened both the negative and positive terminals.


*checked the battery with a multimeter and it is reading 12.5v when not turned on. It reads 14.5v when car is turned on which makes me think the battery and alternator are working fine.

Any help would be amazing. Thanks so much

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SBLACK502

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That’s a JK not a JL. They don’t have 2 battery’s. Could potentially be the alternator. When was the battery replaced last?
 
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johnsoncofo

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That’s a JK not a JL. They don’t have 2 battery’s. Could potentially be the alternator.
When I started the car with a multimeter is consistently kept it at 14.5 volts. I tested for about 5 min consistently stayed at that. Is it possible the alternator can be bad? I really am genuinely asking.

thanks so much for the quick response too
 

SBLACK502

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When I started the car with a multimeter is consistently kept it at 14.5 volts. I tested for about 5 min consistently stayed at that. Is it possible the alternator can be bad? I really am genuinely asking.

thanks so much for the quick response too
You also might be better off checking other JK forms for people with the same issues as this is a JL forum
 
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Mark75H

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Weak canbus can cause intermittent problems like this
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