lugnuts

Have had the dreaded P0051 code and VSC/VSC Off and check engine lights for 3-4 years, and headlight warning light too! Everything I've read in the forum regarding 0051 is that it points to oxygen sensor. Recently tried the paper clip reset which didn't fix the issue. Bride is going to drop the SC off at Sheehy Lexus in Annapolis (130 miles!) next week for the passenger side air bag replacement - perhaps Sheehy can make us a good deal on a new oxygen sensor (Las Vegas odds on that??!!). Headlight warning light perhaps is one of the two sensors also explained in this forum..

mak99

^^ from post #8, 04-15-09

I just did the same thing yesterday morning @ the Lexus dealership (new second master key + flat key, no inspection was requested/mentioned) for my 2002 SC430 bought on 3/31/18 which came with one master key only. As I was driving away I noticed the VSC and VSC OFF lights were on. I noticed it too late to turn back around and didn't have a chance to call them back. I found this thread this morning and so far have tried the following without success:

• Disconnected positive battery terminal for ~two hours (backed car out of garage, VSC lights came back on)
• Did the 3-to-5 jumper trick @ the OBD connector with a paper clip (great suggestion!). The ABS light did rapidly blink after a few seconds, though the two VSCs remained on (no blinking) for well over a minute. Backed car out again and VSC lights came back on.
• I have now disconnected the negative battery terminal to see if that might do the trick. I'll try the jumper method again if the negative terminal doesn't reset the lights.

I will report back if I can solve the issue, or if it still persists, to possibly help others who are having this VSC/VSC OFF lights issue.

Thanks to a great forum with tons of helpful advice!

mak99

>> SUCCESS! <<

Maybe disconnecting the negative battery terminal did the trick.
(unless I didn't fully insert both ends of the paper clip the first time, though I must have since the ABS light was blinking?)

It was unplugged for about an hour. As soon as I backed up about a car length the VSC lights came back on . So I did the jumper wire once again, and after a few seconds of the ignition on and jumper wire removed, both the ABS and VSC lights were blinking (note that the VSC OFF light was not illuminated while the other two blinked). Drove the car down my street and back, no VCS lights were on.

Thanks to all those posters before me that helped me reset these lights! Hopefully the next time I'm on this thread is to offer advice, and not seek it...

EDIT: The lights were blinking during the "jumper installed" step, not after the jumper was removed. Apologies for any confusion.

Bgw70

mak99

As am I. Also, I just edited my post above with a clarification.

Also, I'm 99% sure the first time I tried the procedure (unsuccessfully), the drivers door was open. And I'm 99% sure the second time (successfully), I had the drivers door closed. Not sure if that would make any difference or not but wanted to point that out...

beepogie30

Hi Everybody , I just Updated my Tail light To a 2007 LED Tail light , I replace the Harness, Installed a Bulb for the Signal Light, It Looks Awsome, but as soon as you Turn on the Ignition you will see a burn out Bulb light Come on, After Driving for One hour and turning on the Head lights,
The VSC Off, VSC Light Came on as well as the Check Engine Light. Disconnected the Battery for one hour the Lights VSC Off, VSC , and Check Engine Light , including the Burn out All Came Off, again drove the car half an hour on the freeway as soon as you turn the Head Light on all the the Lights are back on. Decided to Reinstall the Old Tail Light, Every alarm lights are off and everything is back to normal, and its been Two weeks since I saw Those Annoying Lights so Watch out and be very careful you might be also damaging your Car Computer which is Very Expensive, I would Stay with my original Tail Light, Thanks, The Only thing I did not Replace is the ECU, for the Tail Light when I upgraded, which probably is very expensive, and could probably mess up my Beautiful Car.

GmanSC

Harold replaced his tail lights. Wonder if he has the same problem and how to correct it

mandyfig

Like a few of us who upgraded to the LED tails, we went to cover the "bulb burned out" opening on the instrument cluster.

You will have to take off the cluster and tape it up so that you will never see it. There was a post here somewhere.

Well worth the upgrade.

Brings your rear tail-stoplight to the latest model (at least from the rear, lol), seriously the LED's are better safety wise and use a lot less current.

Wonder what they cost a set nowadays. I paid $550 back then. The ECU replacement (for the elimination of the bulb on) will cost a few more and you will have to tear down the rear to replace it.

Harold57

Actually, I just replaced all the bulbs that aren't monitored. I have not done the tail lights. Mandyfig is correct in the handling. Shawn had issues when he replaced his when he tried to add in resistance, others have had mixed results going the resistor route. So as Mandyfig suggests, the two real options are ignore it (or tape over the warning light so it doesn't bother you) or replace the lighting ECU in the trunk. (I forget how much folks have paid for the ECU, but it seems like it was between $100 & $200. Usually purchased off of ebay.)

There are several threads on this subject. Just do a search on tail light replacement.

Sig45

mak99

Re: the VSC lights, try the jumper procedure mentioned earlier in this thread. Refer to my own efforts in my earlier posts for my own experience, since I was able to successfully fix this (and still fine to this day).

Re: the TMPS lights, have you verified the tires are properly inflated? Otherwise I'm not gonna be much help on that...I guess just do some more searching for other threads here.

BTW, even though I'm still relatively new here myself - welcome to the forum!

Sig45

Tire pressure is even at 34 psi all four tires (Bridgestone RF's with good tread remaining). May have a bad TPMS unit - getting that checked this weekend.


The check engine light is not on at all. The VSC and VSC trac off lights come on (steady) only after placed in gear and I move a few feet.

Bgw70

Sig45

BgW 70 thank you the paper clip worked like a charm. test drive all a-ok.

Will certainly make a SST as described in another post.

Next step getting my run flat check to see if I have a bad belt or a bad sensor.

hhy370626

Have 03 sc430, always found helpful information here.

Thanks for sharing.