ES300 ABS warning light

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felixcat - 28 Jun 2006 03:53 GMT

I bought a 96 ES300 last week. Two days ago when I was drving on
highway I found the ABS warning light comes on. The detail symptom is:

When starting the engine, the ABS light comes on then off, which shows
its normal and passes the start up self check, and if you drive with
speed below about 75mph, the ABS light is off, which is also normal.
But if you are on highway and reach the speed of 76mph or above, the
ABS light will on and will not off, although you slow down the speed
later. If you turn off the engine and restart it, the ABS light will be
off until you reach 76mph again and then it comes on.

Anybody has suggestions? What part of ABS system has problem?

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Ray O - 28 Jun 2006 04:32 GMT

>I bought a 96 ES300 last week. Two days ago when I was drving on
> highway I found the ABS warning light comes on. The detail symptom is:
[quoted text clipped - 8 lines]
>
> Anybody has suggestions? What part of ABS system has problem?

The only way to check for sure is to pull the codes. My guess would be a
bad speed sensor or a tire that is a slightly different size from the other
tires.

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Ray O
(correct punctuation to reply)

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Travis Jordan - 29 Jun 2006 23:11 GMT

> Anybody has suggestions? What part of ABS system has problem?

Could be one tire has low tire pressure.

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amstaffs@home.com - 30 Jun 2006 02:58 GMT

"Travis Jordan" <no.one@no.net> quipped:

>> Anybody has suggestions? What part of ABS system has problem?
>
>Could be one tire has low tire pressure.

don't think, unless it was an option, that the 300's came with that
feature.

We had our '00 ES300 show an intermittent ABS warning light and out
of frustration, finally took it to our dealer to diagnose. It only
took them about half an hour and they discovered that the rear wiring
harness that snakes down one of the arms of the trunk lid had worn
through the insulating and was shorting out, causing for some odd
reason, the ABS light to light up.

It was covered under our extended warranty and they just replaced
that section of the harness and did some minor re-routing to prevent
it from happening again. One day in the shop and it's been fine ever
since. (about a year ago).

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