Question about 1992 Lexus Ls 400

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The traction control light is on, my lexus sc 400

The traction control light is on, my lexus sc 400 and will not go out where would the traction control relay be found

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It is contained in the ECM and The ABS controller

Posted on Apr 25, 2010


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Traction control light onand I hit the gas in a balk down and go real slow

You should check the resistance coming out of each of your Throttle Position Sensors

Apr 02, 2014 | 1994 Lexus LS 400

1 Answer

Changed the transmission 2 times and still the same results the car will not come out of first gear and the trac light stays on someone please help me

Traction assist is a measurement that compares the spin of one wheel to the spin of another. When a traction light is on, it means that the system is activated to make the two wheels spin at the same rate.

Traction control systems perform this in several ways. Some systems use independent braking to apply the brakes to the fastest spinning wheel. Other systems affect the engine so RPM is lowered and a combination of both methods may be used to brake one wheel while reducing engine RPM.

Now the spin counter can be mounted at each wheel or in the differential. Those that are mounted in the wheels are subject to debris like rust or brake pad material blocking the spin counters.

I can imagine the trans being tied into the traction system by limiting the trans from shifting into higher gears if the car thinks the wheels are already turning too fast.

Now I am not a Lexus Expert, but on Mercury systems the Traction Control has an on/off switch. If you go to or and register your vehicle for free. You will be able to get wiring and fusebox details. If the traction control system has its own fuse, pull it.

There is a good chance that with the traction control shut off, the car will shift normally. Then you can drive somewhere that can test the traction control and predict what is wrong.

Sep 10, 2012 | 1992 Lexus Sc 400

1 Answer

Lexus ls400 engine light and traction control light came on at the same time now low on power and takes a bit to get up to speed

You need to have someone scan the computer for trouble codes. Most auto parts stores in the US will do this for free in hopes of selling you some parts. The traction control uses the engine to maintain the stability of the car, so you may or may not have a second problem with that system.

Aug 11, 2012 | 1993 Lexus Ls 400

1 Answer

The traction lock light flashes on the dash panel on my 1993 Lexus LS 400 and the engine shuts off. It will crank up immediately after shutting off at times and some times it won't.


Oct 21, 2011 | 1993 Lexus Ls 400

1 Answer

I have sc 400 1992 and see trac ling in my car

The trac light means there is a problem with one of the sensors for the traction control system.

Mar 11, 2011 | 1992 Lexus Sc 400

1 Answer

Why the trac light is on sometime on the dash board

The wheel speed sensor may be bad in one or more of the wheels or the traction control module is bad.

Either way, the traction control will not work intermittently.

Have the computer scanned for codes on the traction control side.

Nov 29, 2010 | 1993 Lexus Ls 400

1 Answer

Does the 1990 Lexus LS400 master cylinder come with traction control?

traction control is a separate system. If traction control or ABS is a problem they are taken out of the loop and the normal brakes still work. The master is for the brake system/ The ABS module and valve body and wheel sensors are your traction/antiskip system.

Jul 24, 2010 | 1990 Lexus LS 400

1 Answer

Battery Light is on?

you need to have alternator checked and replaced.

Jun 05, 2009 | 1995 Lexus Sc 400

1 Answer

92 lexus ls 400 check engine and traction control light came on at the same time, 92 lexus ls 400.

the track off light will come everytime yhe check engine light comes on. this is normal. you need to have the check engine light checked can go to your local parts house they will scan it for so you at least see what area you problem is in and then you can start from there. let me know lf you find out youe engine codes.

May 27, 2009 | 1992 Lexus LS

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