Software update to correct false catalytic converter failure on Toyota RAV4

Toyota released a software update to fix a problem that caused the Check Engine Light to come on. Before the update, the computer would report a problem with the catalytic converter when there wasn't one.

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Average mileage: 143,057 (75,000–194,000)
3 model years affected: 2001, 2002, 2003
35 people reported this problem
21 people shared problem details
2001 Toyota RAV4172,000
Had the catalytic converter replace, 5 months later check engine light again for catalytic converter failure and replaced it again.
The check engine light comes on. It indicates the converter needs replaced inorder for the car to pass PA emission inspection. I checked with my local Toyota garage and they said there isn't a software upate to correct the faulty check engine light. Can someone give me specfic info that I can give to the garage?
2001 Toyota RAV498,732
Check engine light on, dealer states it's the catalytic converter
2001 Toyota RAV4178,000
Had my 2001 Toyota RAV catalytic converter replaced by a Toyota Dealership. Six years late at 178,000 miles I was told the cat converter had to be replaced. exactly 2 years later and at 192,890 miles, check engine light comes on and being told cat converter again.
2001 Toyota RAV4160,000
Car runs beautiful and yet the stupid codes po420 & po430 keep popping up. ON ANOTHER NOTE: If your transmission is slipping, don't replace it! There's another flaw with with the 2001 2002 2003 Toyota RAV4 2WD Engine Computer ECM ECU PCM unit. The flaw unit caused my transmission to slip, making it appear my transmission was going out. I called the dealer, and they were clueless about the Toyota Rav4 having flaw ECM unit. (YEAH RIGHT) I bought a refurbished unit on ebay for $135 with (stronger modified circuts) and put it in myself. It took 30 mins to take out and install the new one. No more transmission slippage! Car runs like brand new again!
2001 Toyota RAV4155,000
My engine light came on, turned if off, then it come on again, turned if off, drove 50 miles, passed smog test, then the light came back on. Been on since after the test, almost been two years, need a smog test next summer.
2001 Toyota RAV4168,000
Check engine light had come on around 168,000 miles. Took it to a shop to turn off the light and see what happened. The light came back on a couple of weeks later. Took it to shop again, to turn it came back on again a couple of weeks later...Another repair guy did diganosis, 0430 and 0420 codes....said to try CataClean to flush out the system...tried a couple of bottles of this...engine light would still come back on a few weeks later. Suggested to replace both catalytic converter and a couple of the O2 sensors.
2002 Toyota RAV4155,000
check engin control lamp is on
2003 Toyota RAV4158,000
Engine light came on, checked for codes and received P0420 & 30. Car runs great and for piece of mind I check air filter, PCV, replaced spark plugs and the battery is only a few weeks old. Could this be a software issue?
2002 Toyota RAV4127,000
Check Engine light comes on straight after resetting. No problem with the car. Just seems I need the computer re configured.
2001 Toyota RAV4185,000
Not yet fixed. I was told that, because of computer error message 420 and 430, cat must be replaced. Would this be covered under this update?
2001 Toyota RAV498,000
Check engine light and it sputter anditrin ok
2003 Toyota RAV4130,745
Engine light with problem indicating Catalytic Converter....
2002 Toyota RAV4143,889
codes po420 po430
2002 Toyota RAV4165,000
check engine light on and codes catalytic converter when the car has no symptoms of any problem.
2003 Toyota RAV4110,000
Catalytic converter codes show up - engine check light always on...
2002 Toyota RAV4156,000
p0420/430 catalyst efficiency below threshold bank 1 and 2
2001 Toyota RAV475,000
local mechanic told me of toyota software update to fix false check engine light. verified by google search. reported to toyota which made good on fix. never received recall or other notice of problem from toyota
2001 Toyota RAV4144,542
2003 Toyota RAV4178,865
Diagnosed po420, bank 1 and 2 failed .po430 bank 1 and 2 failed.
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