ahc21ahc

When I disconnect the negative cable from the battery to do maintaince, do I need to worry about my stock stereo system locking up (anti-theft system)or the airbag being disabled? This warning is what I read about in the Haynes manual for 92-96 Camry/Avalon. I have a 1995 ES300. It says you may need an activation code for the stereo before disconnecting the battery or if the airbag light comes on after reconnecting the battery, you'll have to bring it into the dealer.

Thanks for any tips. This forum has been very helpful.

amf1932

I never had any problems after disconnecting the battery on my '94 ES300.
In fact, when I replaced the battery on this car, the only thing that had to be reset was the clock and the preset radio stations....no radio code was neccessary for activation. The '94 & '95 ES's are the same in this respect.

Mr.Pink86

every haynes manual says that, I think they do that to stay out of trouble because some radios do have a anti theft code

amf1932

The Haynes Repair Manual is only For Toyota branded models, NOT Lexus! Therefore only certain repairs apply to the Lexus. You need to have the Lexus repair manual to read the actual repair procedure, which is as I said in the above post that there should be NO problems in disconnecting the battery!

Mr.Pink86

I didn't say you were wrong, all I said was ALL haynes manuals say that disconnecting the battery may disable the airbags or reset your radio, if you've read more than one haynes shop manual you would know that

swifty562

during a 10-15mins or less time period. you should be fine.

i believe that if you do go over you must input the anti theft code for the radio.


correct me if i'm wrong? because i've run into trouble with the codes ( did not have the code for it)so i replace it with an Eclipse radio.

Lexucan

I'm not aware of any time period in which the radio will not go into "lock-out" mode if the battery is disconnected. However, the lock-out feature can be disabled, but you have to know the correct code to be able to disable it
I've had to re-enter my code on numerous occasions. Luckily I got the code from the previous owner of the car. I was a little nervous about disconnecting the battery the first time though, in case the code I was given wouldn't work....but.....thankfully it did.

92ES5sp

The code for the radio is preset by the owner only, not the factory. So if you never program a code (or one hasnt been set by anybody else) The radio will work. Its explained in the owners manual with more detail.. When you reconnect the battery and a code is programmed it will say "SEC" when you hit the power button. If you dont know if a code has been programmed by previous owner or whatever, turn the key to the ACC position and watch the display. If it says "SEC" for a second then goes out, a code is programmed into the radio and you will need it so dont disconnect power or youre screwed. Youre allowed 9 tries to enter the code after reconnecting battery power, after that it will say "HELP" and youre pretty much done

92ES5sp

BTW as far as I know, this is for a 92-96 ES, not sure of the procedure for later models.

thangalang

When I rebuilt my starter, I had the battery disconnected for over an hour. All you have to do is set your radio again.

Parker Gen

If it doesn't say "SEC" than it shouldn't have a code? Are you sure about this???

92ES5sp

When you turn the key from "LOCK" to "ACC" it will do one of two things, turn on if it was previously on or do nothing if it was off. If a code is programmed, it will say "SEC" for a second then turn on if it was on or the "SEC" will go out and the radio will stay off if you had it off. And yes im positive

HYPERBOY

wat about the 01?????? im guessing its the same...????

and if there was no code set how do u set it????

92ES5sp

I dont know about an 01. That procedure is for 92-96.
Check the owners manual.

If you dont have one log onto www.lexus.com and enter your VIN and theyll mail one to you.

92ES5sp

Thats because a code was never set, like I explained.