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I have a 2005 SC430. Took it to a Locksmith to program an aftermarket key. The guy did a good job programming my spare key but…
I drove my car away with the VSC and VSC OFF lights ON
Very disappointed I start my search to find a solution and found this great forum.
I followed all the instructions step by step to calibrate the VSC and it worked perfect!!!
I want to add that this repair apply to Lexus SC430 first generation until 2005. SC430 2006 to 2010 (?)
Thank you guys! You’re great!
I have a 2005 SC430. Took it to a Locksmith to program an aftermarket key. The guy did a good job programming my spare key but…
I drove my car away with the VSC and VSC OFF lights ON
Very disappointed I start my search to find a solution and found this great forum.
I followed all the instructions step by step to calibrate the VSC and it worked perfect!!!
I want to add that this repair apply to Lexus SC430 first generation until 2005. SC430 2006 to 2010 (?)
Thank you guys! You’re great!
Welcome to Club Lexus and doing the search for the answer…2006-2010 won’t have this issue due to a change in the bus technology
I use Techstream 14.0.X on a 2.0.X cable without issues on a 2000 LX470 (sold a few months ago), a 2002 SC430 (bought a couple of months ago), and the daily drivers: a 2018 Avalon hybrid, and a 2020 Land Cruiser.
I got the VSC light issue on the SC when I was resetting codes that came from cracked vacuum lines leaking. Curiously, I never got this on the 2 years older LX470.
Does the light come on each time for the older SC430s?
Last edited by oneround; Sep 28, 2021 at 07:20 PM.
Reason: correction
I use Techstream 14.0.X on a 2.0.X cable without issues on a 2000 LX470 (sold a few months ago), a 2002 SC430 (bought a couple of months ago), and the daily drivers: a 2018 Avalon hybrid, and a 2020 Land Cruiser.
I got the VSC light issue on the SC when I was resetting codes that came from cracked vacuum lines leaking. Curiously, I never got this on the 2 years older LX470.
And when I used Techstream to register 4 new TPMS sensors, the VSC light did not come on. Techstream maybe not using the same pins so not the same issue?
Understood. Mentioning that I have a cable and software version that works on the older bus and newer bus with no issues was off topic and made my post confusing.
Last edited by oneround; Sep 28, 2021 at 07:21 PM.
The problem is solved by putting a jumper on 2 pins in the OBD-II connector under the dash. I think a lot of owners have this problem especially after being scanned for code. Some scanners are not built the same-- that seems to be the explanation. Anyhow, here it is, with a little bit of modification as it suits the SC430.
1. Turn off ignition.
2. Look for the OBD-II connector under the dash, it has a black plastic cover which can be pulled out.
3. Using a 4-inch wire, insert ends on two pins (holes) of the OBD-II connector. Which ones? The connector has two rows of holes with pins inside. The connector's shape is basically rectangle but there's a little wedge shape to it. Like this:
______
/---------\
/-----------\
(see picture below)
I will call the narrower side of the connector the top row, and the wider side to be the lower row. Jump the following pins:
a) on the top row, counting from the left, where the first pin is 1, insert on pin number 3
b) on the bottom row, counting from the left, insert on pin
number 5.
4. Turn ON the ignition, do not start.
5. VSC and Check Engine lights turn ON. That's normal.
6. Wait for the VSC light to rapidly flash.
7. Turn OFF ignition.
8. Pull jumper wire out, cover the OBD-II connector.
9. Turn ignition ON, don't start, wait about 15 seconds to make sure everything has initialized.
10. Start car. Test drive. You've just saved yourself couple of thousand dollars.
Speedemon's car is an LS430. This may therefore be applicable to GS430 and all the UZ-FE family of engines.
Thanks whitels, I will put all the money I saved in same drawer my wife puts the money she saves when she shops.
There's a video on You Tube that shows how to jump the pin connector with a paper clip, every time my husband would use his generic code reader mine would also do this. The fix is fairly easy I just can't remember which number pins to jumper, I think 3 and 5 but please check.
There's a video on You Tube that shows how to jump the pin connector with a paper clip, every time my husband would use his generic code reader mine would also do this. The fix is fairly easy I just can't remember which number pins to jumper, I think 3 and 5 but please check.
pins 4&14, the OBDII connector has a total of 16 pins.
My VSC lights stayed on after my mechanic cleared a loose evap CEL. I swiped a paper clip from my office and cleared them out for good using the steps in this thread. For anyone who has a hard time parsing written instructions, I also included a picture of my assembly:
Hole 3 on the top, hole 5 on the bottom.
I popped the paperclip in, turned the car on (not start), waited for the VSC light to flash, turned the car off, pulled the paperclip out, turned the car back on for ~20 seconds, started her up, and did a victory lap around the parking lot!
The problem is solved by putting a jumper on 2 pins in the OBD-II connector under the dash. I think a lot of owners have this problem especially after being scanned for code. Some scanners are not built the same-- that seems to be the explanation. Anyhow, here it is, with a little bit of modification as it suits the SC430.
1. Turn off ignition.
2. Look for the OBD-II connector under the dash, it has a black plastic cover which can be pulled out.
3. Using a 4-inch wire, insert ends on two pins (holes) of the OBD-II connector. Which ones? The connector has two rows of holes with pins inside. The connector's shape is basically rectangle but there's a little wedge shape to it. Like this:
______
/---------\
/-----------\
(see picture below)
I will call the narrower side of the connector the top row, and the wider side to be the lower row. Jump the following pins:
a) on the top row, counting from the left, where the first pin is 1, insert on pin number 3
b) on the bottom row, counting from the left, insert on pin
number 5.
4. Turn ON the ignition, do not start.
5. VSC and Check Engine lights turn ON. That's normal.
6. Wait for the VSC light to rapidly flash.
7. Turn OFF ignition.
8. Pull jumper wire out, cover the OBD-II connector.
9. Turn ignition ON, don't start, wait about 15 seconds to make sure everything has initialized.
10. Start car. Test drive. You've just saved yourself couple of thousand dollars.
Speedemon's car is an LS430. This may therefore be applicable to GS430 and all the UZ-FE family of engines.
This solution worked perfectly. I tried many of the other solutions on this forum, to no avail, was ready to give up and take my SC 430 down to my Lexus dealer along with a very fat check book I knew I would need. Now I am back on the road again without spending a dime and it only cost me four inches of wire. Thanks so much!
VSC VSC OFF lights SOLVED! 2005 SC430
