Last post on May 13, 2013 at 11:52 AM
You are in the Toyota Sienna
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Toyota Sienna, Van
#117 of 126 Re: code p0430 was cleared and came on after changing cat bank 2 [joedinh]
Oct 09, 2012 (6:10 pm)
To clarify, you changed the front catalytic converter? Did you also change the lower oxygen sensor?
#118 of 126 Re: VSC & Engine Light Problems - fixed! [robkampen]
Nov 14, 2012 (10:02 pm)
Hello, Thank you for posting your experience with the 2004 Toyota Sienna ABS and Sensor issue! I know it has been a while... I just ran into this today, got the exact same answer from the toyota service as you got... and was wondering if the solution you have posted lasted, or any issues came back later... thank you for the info you posted! Looks like it could help quite a few people avoid spending major $$$ on an unnecessary repair!
Dec 15, 2012 (6:41 am)
I have a 2009 Sienna and it has happened twice for very brief periods. I will be driving along at highway speeds for extended periods and get an alarm. It is a beeping at about 2x per second accompanied a flashing indicator in the upper right portion of the dash near the maint req light. This was so brief (2-3 sec each occurrence) that I couldn't determine what exactly the light was that was blinking. Has anyone else experienced this and what was the problem/solution?
#120 of 126 Check Engine VSC Trac lights on
Apr 26, 2013 (10:45 am)
I've had numerous issues with my 2006 Sienna with only 21k on it. One has been erroneous warning lights. This morning another incident with the Check Engine-VSC-Trac warning lights suddenly coming on and staying on even after a few starts and stops.
Based on past experience I first check the internet for fellow sufferers to see if there isnít a simple fix and an avoidance of the dealer. Sure enough this is yet another common issue. A loose gas or defective gas cap seems to be a common problem. Checked, but not my problem.
Next seems to be a faulty oxygen sensor, e.g. dealer and money. After only 21k I didnít think it was likely (or maybe it was hope it wasnít likely).
Third most common is a recent tire change affecting the ABS and thus the Check Engine and VSC Trac lights which activate evidently to protect the systems. I did have to replace the front tires already, but that was some time and miles ago, so I doubted that was my issue.
Fourth, and way too common with Siennaís, a faulty sensor reading. A solution to this possibility I found on fixya.com Ė disconnect the negative terminal on the battery for a few minutes. The lights are now off.
My Sienna is painted red; it should have been painted yellow for lemon.
May 08, 2013 (5:06 pm)
i have an 02 Sienna and the engine light came on, had it scaned and the code came up P1135. A Air/ Fuel sensor bank 1 sensor 1 . I purchased the sensor from Autozone, put it in and the service engine light is still on with the letters VSC and tractin off light on. Any helpful advise out there.
#122 of 126 Re: Shopteese [shopteese]
May 09, 2013 (6:24 am)
You sound more expert than me, but my research on this issue indicates that it takes a while for the warning indicator to clear even after the issue has been resolved. Also the VSC and Trac Off always come on whenever the Engine light comes on as a precaution. Hopefully it will clear after a few on and off cycles.
You could also force a clear by disconnecting the negative for a minute or so and if it doesn't return all's good. Mine is still off after many on and off cycles and a couple hundred miles.
#123 of 126 Re: Shopteese [ckgrick]
May 10, 2013 (9:42 am)
Unfortunately, part of your persistent problems may be related to your low annual mileage. Mechanical things and even electronic sensors 'like' to be used & cycled, and many short trips or days of sitting can have a negative impact.
I highly advise you to buy a code reader with a clear/reset function, and use that instead of disconnecting the battery. Some of your problems may be directly related to this practice, and Toyota has advised against doing this in multiple publications. TT-0086-11 is one of the more recent ones that list recovery procedures from poor driveability after a battery disconnect. These vehicles rely on 'learning' and stored values to compensate for age and wear. When you wipe the memory, you reset to original factory specs, and the vehicle can really be at odds with these values. Doing this wipes out idle settings, short and long term fuel trim, ignition timing, etc. This can result in false oxygen sensor (front A/F and rear O2) codes, or even converter degradation.
VSC & Trac *may* come on, depending on what the logged code is. It usually accompanies issues that impact driveability, and not necessarily just simple emissions issues.
Some codes set on a single incident, some after failing several tests in a sequence. Codes can go away in as little as 3 passing drive cycles, some remain up to 40.
I've not seen a code set just because of a tire change, although I suppose that earlier indirect TPMS could - especially if you have severely mismatched tires that result in a substantial rotational difference? I'd be interested to know more on this one.
#124 of 126 Re: Shopteese [fibber2]
May 10, 2013 (9:55 am)
Some good advice. Thanks. I'll break down and get a code reader. Any recommendations?
#125 of 126 Re: Shopteese [ckgrick]
May 10, 2013 (10:27 am)
I run with a laptop based system that is on the expensive side. I'm sure someone can chime in on their recent experience with a sub-$100 handheld unit. Sorry that I cannot be of help here.
#126 of 126 Re: Shopteese [fibber2]
May 13, 2013 (11:52 am)
I have a $99 or so Actron reader. It gives you the code and can reset it. Comes with a booklet to interpret codes but I search the internet instead. Does the trick, but very basic.