Bettery and brake light flicker on cluster

[Dc5-RR]

Sorry for misspelled title lol
I have an s13 with sr20det swap and the brake and battery light flicker randomly. It goes and comes i got the alternator checked and its good. Any idea what else it could be?

[projectRDM]

Alternator is not good, they just got a good reading because it wasn't under enough load. The voltage regulator is on the way out, sending varying voltage to the car. Get it rebuilt/replaced soon before you damage something.

[slim_240]

get a fluke or ohm meter and check the battery to see if it's getting charged or not. have someone rev it up as you check also. another thing is to check voltage at the THICK WHITE WIRE coming from the alternator and see if it's giving you 14.5v. i had the same problem and the problem was the ALT fuse.

[Educated_Idiot]

Is the ALT fuse under the hood or behind the kick pannel ?

I have the same issue except my battery and brake light stay on all the time.

It was find yesterday and leading up to this morning but when it started this morning the lights came on and haven't gone off since.

[V8slayr]

Definitely sounds like a charging issue to me. Mine did the same shit right before my alternator shit on me.