Camaro Tachometer Not Working 

I feel like modern electronics (as if a decade old car counts...) are too flaky. I miss the 90s when car electronics were "air conditioning", "cd player", "cruise control". You couldn't break that stuff by killing your battery.

@@ChrisCamaro These aren't really "muscle" cars anymore hehe

No problem. Just make sure to leave it disconnected for a couple hours to be sure.

@@ChrisCamaro Yep worked like a charm thx bro!

Could you please tell me the problem when you find out? I have a 16 and I’m having problems

@@jaredgreen2235 it only happened the one time in a year and a half. I decided not to take it in. Been fine. Good luck.

And yes, I have to do each window twice..

A CASE (Crank Angle Sensor Error) can definitely cause the tach to malfunction. In my particular case I'm 99% sure it was the battery instead but if you have a crank sensor problem, that's going to be a more expensive and involved repair. Gaining access to that thin metal ring is a PITA.

Not so far. I'm pretty sure it happened in the first place because of how little I drive the car and the battery just got low. You try to start it low and if it doesn't turn over it just brings the voltage down even more. By the time you're cranking the engine at something like 7 or 8 volts, every piece of electronics in the car just goes haywire. You have to have a strong battery to do this reset procedure.

Do you have a loose battery terminal or weak battery? Sounds like something is freaking out the computer on a regular basis.

No brand new battery

Did you ever figure it out I currently have the same problem

That's because the speedo has to work in both Canada and the US where you have metric and imperial. If you set it to metric, 240 kph is within the realm of possibility I guess so the numbers have to go that high.

@@ChrisCamaro thx for the reply. I thought that was the case. Then I seen MPH lit up in there. At least I thought I did...

Very well could be a ground fault. I've seen lots of very strange phenomena resulting from low vehicle voltage however and the electrical system of cars these days is so complex there's no telling what the heck the problem is. All I can say for certain is that in my experience, solid state electronics are picky about what voltage you supply them with. The datasheet of any given chip will call for a specific range of voltages and if you go outside of that, God help you because any sort of bizarre behaviour could result. I once bricked my computer trying to tune it... or so I thought... and after fighting to reprogram it for hours I was nearly ready to buy a new ECM when it occurred to me to just disconnect the battery. Low and behold that's all it took for the next programming attempt to work. Computers work in mysterious ways.

What's the problem I got the same issue I got a brand new battery Platinum but I got the same issue five stars on the battery 🔋..... So is voltage of the battery or something else