Hello! I have a 2006 Nissan Altima. For about a few weeks, the brake and battery light has been going on. Today as I was driving, I couldn't accelerate. I got into the quickest parking spot

Yes,it is the alternator,and from welding being done on car,shorted the alternator,replace it,

If battery light is on alternator not charging so its the alternator or alternator fuse now as far as the brakes go have them checked maybe be a simple brake job or not but best to get checked.

They told me last week I needed brakes. I had new tire rods put in. I did the welding and tire rods, and was going to do the brakes this week. Grand total for the welding and tire rods was $646, so I'm doing things week by week. This car is killing me!

Did you ever resolve this? Only post I found that was exactly what happened to me. Next day everything went to sh*t. Background; My Nissan Altima is doing the same thing had both parts of the charging system tested & both test good that they are fine. The light flashing has been going on for a bit but since charging system tested fine and it has a new battery we were stumped. One day I went to accelerate & all the sudden I got nothing. No response to the throttle. Car never died or showed any signs of having a failing charging system. Pushed it to the side of the road shut it off & went to start it didn’t want to start. I had a jump pack so I jumped it and it started & got me home although at lights it seemed like it wanted to die. Got it home, parked it. Started it the next day after charging battery to drive to shop to have the alternator replaced I was going to do it myself but with the 2008 Nissan Altima 3.5 coupe you have to take pretty much the whole front end off & I work a lot and didn’t have the time. No check engine light. Did flash a “VDC” light at me. When I started it the next day it was a completely different car. Check engine light flashing popped 2 codes P177 & PO303 code. The shop is maybe 3 miles from my house but it was jerking, shaking when I was trying to go, struggling to go 35 mph. I got it to the shop & they say they tested wiring and I told them all of this and the only thing I’ve gotten back from them is the cylinder 6’s coil is bad. I’m waiting to hear back about how it drives after replacing that but I don’t want to get the car back just to have to bring it back or pay for a bunch of “maybe” parts. Can a bad coil cause all this? Do I need a new alternator even if the charging system is testing good?? They seem to be completely ignoring the p177 code but when you look it up all the symptoms are exactly what it was doing. But what you described is exactly what happened to me. My Nissan has 120k miles the people before me didn’t take care of it but I have since I got it. Religious oil changes etc. First check engine light I ever got from it and usually it’s a nice speedy fun car to drive. Always has. Even with the flashing 2 lights I didn’t notice a difference in anything. Maybe a little sluggish. I need help hopefully someone has been through this or something similar and can give some sort of insight. I almost want to take it to a different shop for another opinion.