Disconnecting battery Question
Thread Starter
Racer
Joined: Nov 2006
Posts: 411
Likes: 1
From: antioch ca
Drifting
Joined: Mar 2003
Posts: 1,953
Likes: 4
From: either, ca/ohio
when car is off is light by the volume control blinking?
if it is it is on, if not it is off.
read in your owners manual on how to set it.
either you did or a previous owner.
it comes from the factory off so you can set it.
if it is it is on, if not it is off.
read in your owners manual on how to set it.
either you did or a previous owner.
it comes from the factory off so you can set it.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Always NEGATIVE disconnect first. RECONNECT last. Been that way for E V E R!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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you run the risk of shorting the hell out of a lot of stuff if your wrench grounds itself to a metal peice somwhere
Tech Contributor
Joined: Oct 1999
Posts: 41,036
Likes: 9,798
From: Charlotte, NC (formerly Endicott, NY)
Always do the negative first. This is especially important on metal cars where all of the metal is tied to the battery negative post. If you accidentally touch a metal part with the wrench while taking off the positive cable you will quickly start welding the wrench, will generate a large blue white spark that will temporarily blind you and hot pieces of the wrench may fly around and damage other things.
On the Vette that isn't quite as important because most things (other than the negative terminal and attached cable) don't conduct electricity so if you hit a body panel or other car part the chance of shorting out the battery is greatly reduced.
Bill
On the Vette that isn't quite as important because most things (other than the negative terminal and attached cable) don't conduct electricity so if you hit a body panel or other car part the chance of shorting out the battery is greatly reduced.
Bill
Racer
Joined: Nov 2009
Posts: 347
Likes: 1
From: Martinez GA
obviously the votes are in and yes i agree with all as well, just thought i would give you what i was taught as a teenage that kinda stuck with me like a nursery rhyme
red on first.....red off last
say it like ten times for the next few days and it'll be with ya forever
hope it helps
red on first.....red off last
say it like ten times for the next few days and it'll be with ya forever
hope it helps
Racer
Joined: Mar 2005
Posts: 262
Likes: 3
From: Tempe AZ
I always thought negative first as well. Then one day I had a problem with the car not starting and got the "pull Key wait 30 seconds" message. In the end it wouldn't start. I went through the manual is it said to pull the POSITVE only and wait one minute , then reinstall. Sure enough it worked and that was the end of it.
Apparently, the passcode wasn't send from the BDM to the PCM and pulling the positive only triggered a reset. Really strange.
Still, other than that, negative first.
Apparently, the passcode wasn't send from the BDM to the PCM and pulling the positive only triggered a reset. Really strange.
Still, other than that, negative first.