Please Help!!
#1
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What does this code mean?
I have a 2000 ES 300 with 68,000 miles and it has been religiously maintained .
It has been running flawlessly, but a few minutes ago, the check engine light went on as well as theTrac OFF light right beside it. Should I continue to drive it? What should I be worried about?
I have never had a problem.
UPDATE: I got the code which is P0768 - shift solenoid D circuit electronics
Is this a part that is easily fixed? Where is this solenoid and how can I fix it?
By the way, after sitting for a few hours I turned the car on to move it and no warning lights came
on. I still left the car at home instead of driving it to work and am wondering if I can do damage to my car if I continue to drive it.
If it is not easily servicable, where besides the dealer should I take
it, AAMCO? Thanks for your input.
It has been running flawlessly, but a few minutes ago, the check engine light went on as well as theTrac OFF light right beside it. Should I continue to drive it? What should I be worried about?
I have never had a problem.
UPDATE: I got the code which is P0768 - shift solenoid D circuit electronics
Is this a part that is easily fixed? Where is this solenoid and how can I fix it?
By the way, after sitting for a few hours I turned the car on to move it and no warning lights came
on. I still left the car at home instead of driving it to work and am wondering if I can do damage to my car if I continue to drive it.
If it is not easily servicable, where besides the dealer should I take
it, AAMCO? Thanks for your input.
Last edited by SouthLex; 06-27-06 at 03:35 PM. Reason: update
#2
Lexus Champion
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any number of sensors and signals could have set off the CEL. The addition of the TRAC light means the car has gone into "limp" mode. It is a safety feature so that minimal damage will be done if any damage is done at all. 99% of the time the codes are emissions related. The best thing to do is to go to Autozone and have the code(s) read for free. You won't know where to start looking for the potential problem or culprit until you know what codes are being thrown up.
post the codes up here when you get them and we can help you better.
steviej
post the codes up here when you get them and we can help you better.
steviej
#4
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I have a 2000 ES 300 with 68,000 miles and it has been religiously maintained .
It has been running flawlessly, but a few minutes ago, the check engine light went on as well as theTrac OFF light right beside it. Should I continue to drive it? What should I be worried about?
I have never had aproblem.
It has been running flawlessly, but a few minutes ago, the check engine light went on as well as theTrac OFF light right beside it. Should I continue to drive it? What should I be worried about?
I have never had aproblem.
#5
Code P0768
I have a 2000 ES 300 with 68,000 miles and it has been religiously maintained .
It has been running flawlessly, but a few minutes ago, the check engine light went on as well as theTrac OFF light right beside it. Should I continue to drive it? What should I be worried about?
I have never had a problem.
UPDATE: I got the code which is P0768 - shift solenoid D circuit electronics.
It has been running flawlessly, but a few minutes ago, the check engine light went on as well as theTrac OFF light right beside it. Should I continue to drive it? What should I be worried about?
I have never had a problem.
UPDATE: I got the code which is P0768 - shift solenoid D circuit electronics.
Doe anyone know if the drive train warranty covers this?
#6
Found out some more infomation about the P0768 code. It refers to the S4 solenoid which control the shifting into overdrive. According to the Lexus manuals, if the code is present the transmission will not shift into O/D. I'll have to try this on my vehicle.
I also found the detection criteria for this code. It is an electrical detection by the ECM according to the following:
Hope this helps.
I also found the detection criteria for this code. It is an electrical detection by the ECM according to the following:
ECM checks for an open or short circuit in shift solenoid valve S4 circuit when it changes.
ECM records DTC P0768 if condition (a) or (b) is detected.
(a) When solenoid is energized, solenoid resistance is 8 W or less and it is counted.
(b) When solenoid is not energized, solenoid resistance is 100 kW or more and it is counted.
This tells me that it could also be a weak connection anywhere from the ECM to the solenoid, i.e., the harness to the trans, within the trans or the solenoid itself.Hope this helps.
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