The entire circuit from the headlights-taillights, cabin lights, rear back up camera, ac blower. All pulse at this weird frequency that reminds me of one of those fake led candlelight’s. It’s been going on since at least September

I took the car down to my local Honda specialty shop, and they diagnosed the battery as bad, luckily the battery was under warranty. Wasn’t the issue. I checked the voltage across my alternator and it was 14.9V(I think that might be slightly high, but I’m not sure).

The only additions I have to my circuit are a dashcam that is powered via a piggyback into my windshield wiper fuse, and a killswitch which was only added last week for a different issue. I’m at loss and this is why I’m posting for the first time in 8 years. I’m just looking for someone to point me in a direction to look.

Thank you for any input

 

Your alternator is junk or you have poor grounding is my SAWG....

 

Recently replaced the alternator, but I could've just bought a junk alternator?

 

If it wasn't a Denso reman, its suspect.....

 

When headlights were on and at idle, the lights would dim a bit. Accelerate car in neutral a bit and lights would stop flickering. I replaced the alternator with a aftermakret WAI alternator. problems eliminated. check rock auto