So my 5th lexus sc430
2002 13k miles
Battery light is on
Good battery
I took off the negative and positive cable and car still on... I understand if the alternator is bad would car would die... Any suggestions?

Has the battery been load tested? Has the alternator been bench tested? What is the battery voltage with the engine running? Hook up a code reader and find out why your other warning lights are on (probably due to the battery light).

Im cuious if any of the dash lights go out when the battery is disconnected. But the natural and logical evaluation is a bad battery.

Paul

It's a weird thing, but 4 out 5 of my sc430 have the
Left warning lights on...
I'll check the battery
Thanks

Your alternator is about going dead. The battery light is on when the alternator voltage drop below the set limit. Do not drive your SC until you have it checked or replaced. You don’t want your SC stranded on the emergency lane of the freeway.

If you mean the lights in the left circle of your dash, that means you need to use the paper clip trick.

Those lights come on when they use a code reader to check what is wrong with your car.

Go to Google and type in sc430 Paper Clip reset

Daryl, his question was regarding to the battery warning light on the right. His alternator is going out.

So i guess I'll replace the alternator
(the gray one)
But i liked the answer of the paper clip too, i seen it before on YouTube
Thank everyone

Are you collecting them. Why 5?

mirko61, we've had a number of folks with 2 SC430s, but it looks like you are the first to have 3! Is that the case?

I like them i fix them up, keep rhe one i like the most for a while, then sell them, buying 1 more next week.. 😉

Actually 5..
One black 2005
Pink 2003 with camero exhaust system
Blue 02
Gray 02
Black 02
Looking for the pebble beach 06 now
When I'm finished fixing them I'll sell 2 or 3

I am surprised you don’t have Techstream and a VSC reset tool. Especially owning so many SC430s

VSC reset tool Thread
https://www.clublexus.com/forums/sc4...c430-help.html

Thank you I'll check it out
I have snap on scanner, but i haven't try it yet

The reset tool is the same as the paperclip trick, but much easier.