Kaiyin

iTrader: (1)

doing a bit of digging here...

this just happened to my LS last night driving home from work. Instrument panel flashed "CHECK VSC" and the VSC OFF light was on, but also my ABS light came on. Got home and checked for any codes and none were found. Anybody have any advice before I bring it to the shop?

PureDrifter

iTrader: (10)

check the battery.

Kaiyin

iTrader: (1)

I will probably still do that.

Weird thing though...when I started my car this morning to go to work, the CHECK VSC light was still there and my ABS light. As I was driving to work, they went away and have stayed off all day.

Kaiyin

iTrader: (1)

BUMP!

Check VSC flashed, Headlight Leveling flashed, VSC OFF light on and ABS light is on. I'll still have the battery and alternator checked

BUT

can these lights and indications be caused from the car simply being too low? The manual said that "improper" tire sizes and such could cause the VSC to malfunction (I have lots of stretch, and lots of camber).

Just trying to trouble shoot myself before I bring it to the dealer so they can shut those lights off they bug me.

PureDrifter

iTrader: (10)

may cause VSC calibration issues if the front/rear or cross-axle tire diameter difference is too great, but i doubt that's your issue given the levelling issue.

Kaiyin

iTrader: (1)

I have scrubbed the wire harnesses a bit even though they have been tucked up to the frame rails :X thinking I just have to run them in the bay now =(

whit3b0y

def signs of bat/alt. battery is not charging, is not able to pull enough power to level the headlights. VSC OFF does not save enough power to do really much of anything.
The manuel does say improper size can cause malfuntion I have 235/35r19s and the only malfuntion I have encountered was from pillow ball mounts going through the top hat, resulting in an unstable strut.

lextout

Yup this thread looks familiar, on my 2000LS400 i had only 61k on it and had the same symptoms as you did,(vsc light was on)Turns out the yaw rate sensor had failed on me, replaced it and everything was back to normal, the cost with labor and parts was under 200$.

Kaiyin

iTrader: (1)

battery and alternator check out

time to check to see if I've shredded through any more of the wiring in the wheel wells =P

PureDrifter

iTrader: (10)

you havent relocated yet?

I got mad at mine and pulled it in through the engine bay, over the shock tower, to the fuse box.

Only had to extend the turn signal and washer wires. no other cutting needed lol.

Kaiyin

iTrader: (1)

I relocated the driver's side to the top of the frame rail. The only place that rubs (and it's very slight) is where it comes out of the cabin and it only does it at full lock.

I haven't touched the passenger side, but I will do it this weekend. I just didn't want to clutter the engine bay with wires =(

Lexozz

Well here's my story with the VSC. Mine used to shake like there was a loose plug or clog somewhere upon idle, couldn't figure out what the deal was. I thought I had an air intake problem because of a crack in the intake tube, fixed that problem resurfaced. So I did a little more digging, cleaning the air intake sensor with some carb cleaner, still same problem. Dug some more finding out oil leaked on one of the plugs and of course the coil pack was filled with oil. Cleaned everything off, I haven't had the problem since and I'm talking months now. However; I do have to have change my valve cover gaskets that caused this.

PureDrifter

iTrader: (10)

VCG won't cause that. Leaking Spark Plug Seals do.

Lexozz

Now that I think about it makes alot more sense. Thanks!

Yoshi323

Hi! Since June 2015 have a problem with my LS400 '1998.
When I turn the ignition key, before starting the engine a red light and Check VSC / VSC failure appear on my dashboard (+sound) and disappear after 1-3 seconds. I changed the ECU. Car drives normally but 2 times the engine stopped automatically at red lights. I checked the IAC - mechanic says, that in my 98'LS there's no IAC, just an electronic throttle. So the throttle was cleaned and works normally, but the red light and message still appear 1 on 10 startings.
It never happened while driving.
The battery starts the engine at -20C so the battery is OK. Any ideas? Thank you in advance.