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Lexus RX 300 Brake Problems

20 messages,  Last post on Oct 20, 2011 at 8:09 PM

You are in the Lexus RX 300/330/350 Forum.

What is this discussion about? Lexus RX 300, Lexus RX 330, Lexus RX 350, Brakes, SUV

Messages Page 3 of 3

#18 of 20 Re: abs diagnotics [drgkje] by la4mead

Aug 20, 2010 (10:57 pm)

Replying to: drgkje (Aug 20, 2010 7:18 pm)
I don't know of a way to read the OBDII without a code reader; hopefully someone monitoring this forum does know. I know a friendly mechanic who checked for me when I had both error lights coming on. He's helped with my Fords so many times (eyes rolling), I have only had to ask him on the RX once.
 
A bad wheel sensor or other brake problem could disable the ABS system and cause warning light. However, consider the possiblity it may not have anything to do with the brakes and often is not brake related. When a sensor error is reported anywhere in the engine management system, Toyota/Lexus vehicles "bypass" the whole ABSystem also and that light comes on in addition to "check engine" at least until the car is restarted, I guess to demand attention.
 
Could your ABS light be associated with a CEL fault; something as simple as a fuel cap leak (or not tightened down, I think is the most common fault), MAF mass air flow sensor (easily cleaned), or IACV idle air control valve (clean off carbon residue)?
 
If you do want to clear the recorded codes, with the engine off you could disconnect the engine/fuel or EFI (?) (I don't remember which it was labelled) relay under the hood for 5 minutes or so. I'm not trying to sidetrack you, but just sayin'...
 
And share with us what you find out.

#19 of 20 Re: abs diagnotics [la4mead] by drgkje

Aug 21, 2010 (11:05 pm)

Replying to: la4mead (Aug 20, 2010 10:57 pm)
this is not an OBDII readable error....i do have a nice obdii reader.
 
this code can be read one of two ways: either by a special ABS tool or by removing/connecting jumper on service connectors. with proper jumper in place, when you turn on the ignition, the ABS light blinks to depict a 2-digit code.
 
i found the code-description but have not been able to find the exact location of connectors and pins to jump.

#20 of 20 Re: 2010 Lexus RX brakes malfunction, check ABS, Power Steering malfunctino [lexusowner2010] by unhappyrx350

Oct 20, 2011 (8:09 pm)

Replying to: lexusowner2010 (Dec 13, 2009 4:42 pm)
I have a 2010 Rx350 and I have been dealing with this exact problem for the past year. I have had my car at the dealer on 4 separate occasions to try and fix this issue and it continues to reoccur. The big issue is that the ABS stops functioning completely when this happens. Huge safety concern especially in winter on snowy roads.
 
Did they fix the problem? If so, how was it fixed? Please let me know.

Messages Page 3 of 3

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