kudos34

Hello Lexus owners'

Today I change out my hid bulbs on my 04 ES330 and I had to disconnect the battery to get to the driver side bulb. After changing the bulbs and reconnecting the battery, I noticed the car idling funny. So I took it for a ride and the check engine, vsc, and the trac off lights came on as soon as I started rolling. Is this nomal? These lights were not on before I removed the battery, and have never came on. I think I remember reading awhile ago that the car's computer has to reprogram itself for the correct air, fuel mixtures and so forth. Am I correct, or is there something I did wrong?

Thanks in advance for any replies!

PFB

Although in some cases, disconnecting the battery may cause the computer to re-learn your driving habits, This should not cause the check engine light to come on.

You may have disconnected a wire or a vacuum hose while changing your HID bulbs. Have a good look at the area that you worked on. If you don't see anything obvious than the ext step is to have the codes read, and than take it from there,

Phil

kudos34

Ok, thanks for the advice. Im going to give it a good checking. Thanks Phil

By this way I tried disconnecting the neg terminal, they stayed off for about 5 minutes then returned