LS460ROCKS

Hi everyone,

I have spent numerous hours searching on this forum for my issue without any luck to my problem. I just replaced all the suspension parts on my 2000 LS400 along with the front brake pads. I didn't check to see if I had to remove the negative battery cable or not before I started the job. Therefore, when I was done, I took the car for a test drive and the TRAC light blinked and turned off. Also when I came to a stop the brake pedal gave me a little jerk as if the anti lock was working. Neither the ABS/ check engine or TRAC light stay on, the TRAC light comes on only when I am stopped and it is just a blink. Is it something that I have to take it to the dealer for them to erase or is it something that I can do on my end.

Thanks in advance for any help,
Albert

jaaa

Just for grins and giggles, I'd take off a battery terminal for a while, then reinstall it and see what happens.

dicer

X2 what Jaaa says. And double check things like ABS sensor wires and connections, do these newer cars have brake pad sensors? Did you do anything with the brake fluid? Could be air in the system. Trac is part of the brake system, if its complaining and it happened after doing brakes you did something to make it complain. Now you need to read codes, and if that shows nothing you need a top end scan tool not just a code reader, to get in and run the system and see what is going on.

LS460ROCKS

Thanks for your advice, I think there might be air in the system. The fluid is same and at the correct level. I will get someone to press on the brake pedal so I can bleed the system to remove any air.

dicer

And with Trac and ABS it can be a bit more complicated than just normal bleeding. There is a procedure to bleed the abs unit and the Trac system. I only have the old gen 1 information, you would need the info for your year of LS.

LS460ROCKS

Thanks for the information. I will drop the car off at the dealership before I make matters worse.

dicer

Smart move if your not a techy type person.

LS460ROCKS

LOL!
That's the problem I do all the work myself. However, I know my limits....

Scraape

my 98 has the brake pad sensors, so i would imagine 00's do as well. But your brake wear notification light would come on, not your trac light.

so are VSC & TRAC the same thing? my 98 has VSC

LS460ROCKS

Scraape,

When I replaced the suspension parts I didn't have any lights on the dash on. My 2000 has the wear sensor on the right tire only.

YODAONE

Perhaps one of the wheel speed sensor wires was disrupted during disassembly/assembly.

What is trouble code?

LS460ROCKS

Perhaps is a good point! I would have to replace both sides though. I rather take it to the dealer so they can tell me what they see.

99celsior

There should be two sensors one on the front one on the back I just did the brakes on my 99 LS400 you have to be very careful when putting the little sensors back into brake pad

99celsior

The ABS sensors might be dirty and need to be cleaned

dicer

There can be codes set with no light showing. Please let us know what the problem was after its fixed.