Braking issues after ABS lockup on ice
Thread Starter
Rookie
Joined: Jan 2017
Posts: 75
Likes: 4
From: WA
Braking issues after ABS lockup on ice
My 2002 LS430 had to stop hard on some ice and now braking the car after this, is like the back end wants to come around to right when braking and handles
squirrely. It does not brake evenly like it use to and when stopping now from cruising speed a frightful experience when slowing down. Any ideas what might have
happened. Car brakes are new, so I am guessing a ABS module failure of some sorts.
squirrely. It does not brake evenly like it use to and when stopping now from cruising speed a frightful experience when slowing down. Any ideas what might have
happened. Car brakes are new, so I am guessing a ABS module failure of some sorts.
Lexus Test Driver
Joined: Sep 2016
Posts: 8,564
Likes: 389
From: PA
I don't know the LS430 specifically, but I know my Maxima ABS a little, and my BMW ABS in detail.
There are two parts to the ABS, the pump, and the module, at least on the German cars. If either fails, the ABS system is disabled, as indicated by a yellow warning on the dash. True on Maxima.
The vehicle does not brake any differently with a failed ABS system, i.e. at least where I live, it does not fail a state safety inspection. The only difference is there is no ABS and the car behaves like a car without ABS.
On my Maxima, due to age, I had a RF caliper that was sticking. I replaced the caliper and to my surprise, 100% the same. Replaced the hose and it was normal again. From my research online, rubber hoses deteriorate, and a piece can break inside, acting like a one-way valve. Fluid can be pumped into the caliper, but it doesn't drain out properly when the pressure is released.
Unless there is a warning indicator on the dash, I would think it's probably another component besides ABS...good luck.
There are two parts to the ABS, the pump, and the module, at least on the German cars. If either fails, the ABS system is disabled, as indicated by a yellow warning on the dash. True on Maxima.
The vehicle does not brake any differently with a failed ABS system, i.e. at least where I live, it does not fail a state safety inspection. The only difference is there is no ABS and the car behaves like a car without ABS.
On my Maxima, due to age, I had a RF caliper that was sticking. I replaced the caliper and to my surprise, 100% the same. Replaced the hose and it was normal again. From my research online, rubber hoses deteriorate, and a piece can break inside, acting like a one-way valve. Fluid can be pumped into the caliper, but it doesn't drain out properly when the pressure is released.
Unless there is a warning indicator on the dash, I would think it's probably another component besides ABS...good luck.
Pit Crew
Joined: Oct 2018
Posts: 171
Likes: 21
From: Manitoba
I don't know the LS430 specifically, but I know my Maxima ABS a little, and my BMW ABS in detail.
There are two parts to the ABS, the pump, and the module, at least on the German cars. If either fails, the ABS system is disabled, as indicated by a yellow warning on the dash. True on Maxima.
The vehicle does not brake any differently with a failed ABS system, i.e. at least where I live, it does not fail a state safety inspection. The only difference is there is no ABS and the car behaves like a car without ABS.
On my Maxima, due to age, I had a RF caliper that was sticking. I replaced the caliper and to my surprise, 100% the same. Replaced the hose and it was normal again. From my research online, rubber hoses deteriorate, and a piece can break inside, acting like a one-way valve. Fluid can be pumped into the caliper, but it doesn't drain out properly when the pressure is released.
Unless there is a warning indicator on the dash, I would think it's probably another component besides ABS...good luck.
There are two parts to the ABS, the pump, and the module, at least on the German cars. If either fails, the ABS system is disabled, as indicated by a yellow warning on the dash. True on Maxima.
The vehicle does not brake any differently with a failed ABS system, i.e. at least where I live, it does not fail a state safety inspection. The only difference is there is no ABS and the car behaves like a car without ABS.
On my Maxima, due to age, I had a RF caliper that was sticking. I replaced the caliper and to my surprise, 100% the same. Replaced the hose and it was normal again. From my research online, rubber hoses deteriorate, and a piece can break inside, acting like a one-way valve. Fluid can be pumped into the caliper, but it doesn't drain out properly when the pressure is released.
Unless there is a warning indicator on the dash, I would think it's probably another component besides ABS...good luck.
Thread Starter
Rookie
Joined: Jan 2017
Posts: 75
Likes: 4
From: WA
Thank you for giving me some direction as to where to fix this. No ABS lights have shown. But do get and occasional Brake light come on the dash for
the emergency brakes. I just pull the release handle quick and it goes away. Don`t think it has anything to do with it. Will have to jack it up and check the
front wheels to see witch one is sticking and also check the lower ball joints.
the emergency brakes. I just pull the release handle quick and it goes away. Don`t think it has anything to do with it. Will have to jack it up and check the
front wheels to see witch one is sticking and also check the lower ball joints.
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