TRAC and ECU reprogram...

669 Views 9 Replies 6 Participants Last post by marke1, Mar 24, 2001

DarkzIS300

Discussion Starter · Mar 23, 2001

Today I talked to the Diagnostic Specialist at my dealership and they know of both the TRAC problem and the ECU reprogramming. He said it could be from 30-60 days but I was very happy to hear that he knew of both problems and they would be covered. Hes going to contact to me soon with more detailed informantion, but all is well so far. =]

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Lexus_IS300

· #2 · Mar 23, 2001

ecu reprogram should be avail in most dealership right now. as for trac control unit, its a whole new unit replacement and should be available in about 60days.

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'91 Acura NSX
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DarkzIS300

Discussion Starter · #3 · Mar 23, 2001

thats what i said lex

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is300girl

· #4 · Mar 23, 2001

So are both of these being covered under the warranty?

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Lexus_IS300

· #5 · Mar 23, 2001

Originally posted by is300girl:
So are both of these being covered under the warranty?

of course.

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'01 Lexus IS300
'91 Acura NSX
'95 Nissan Maxima

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LoQtus

· #6 · Mar 23, 2001

Sorry if this is old news, but what's the problem with trac?

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DevilDog66

· #7 · Mar 24, 2001

Originally posted by LoQtus:
Sorry if this is old news, but what's the problem with trac?

What lexus will do is change the programming in the trac/abs ecu. With the updated ecu the trac system won't be so sensitive and will turn itself off sooner. FYI, the trac can sometimes engage for about a second or two without blinking the trac light in the dash. Thus, the owner interpets that as a hesitation. As of febuary, all IS300s made have the new ecu program, and the newer trac/abs ecu. Hope that clears things up.

[This message has been edited by DevilDog66 (edited March 24, 2001).]

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Lexus_IS300

· #8 · Mar 24, 2001

Originally posted by DevilDog66:
What lexus will do is change the programming in the trac/abs ecu. With the updated ecu the trac system won't be so sensitive and will turn itself off sooner. FYI, the trac can sometimes engage for about a second or two without blinking the trac light in the dash. Thus, the owner interpets that as a hesitation. As of febuary, all IS300s made have the new ecu program, and the newer trac/abs ecu. Hope that clears things up.

[This message has been edited by DevilDog66 (edited March 24, 2001).]

trac will not be reprogrammed. the whole unit will be replaced.

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'01 Lexus IS300
'91 Acura NSX
'95 Nissan Maxima

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DevilDog66

· #9 · Mar 24, 2001

Originally posted by Lexus_IS300:
trac will not be reprogrammed. the whole unit will be replaced.

Originally posted by DevilDog66:
What lexus will do is change the programming in the trac/abs ecu. With the UPDATED ECU the trac system won't be so sensitive and will turn itself off sooner.

Sorry if I was not clear enough but that is what I meant.

[This message has been edited by DevilDog66 (edited March 24, 2001).]

[This message has been edited by DevilDog66 (edited March 24, 2001).]

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marke1

· #10 · Mar 24, 2001

Devildog66:
I think I have noticed this happen. Sometimes it "feels" like the Trac has engaged but no flashing light. Interesting.

Originally posted by DevilDog66:
FYI, the trac can sometimes engage for about a second or two without blinking the trac light in the dash. Thus, the owner interpets that as a hesitation

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