If they refuse to go out...stop by a harbor freight or auto parts store & pick up an inexpensive OBD2 code reader...plug it in...(right above your legs/shins as you sit in the driver’s seat) and clear the codes.
If they don’t come back...all good.
If they do come back...Toyota can give you advice.
As TonyP said...practically everything under the sun triggers the 4Lo light among other lights...which is annoying because it prevents engagement when you might need it.
Could be:
-Charcoal evap canister is flooded (not make or break)
-O2 sensors could be failing (there are 4...if you replace one...replace the rest bc it’s labor costs that get ya—May as well replace them all)
-Gas cap
-Fuel tank pressure issues
Many more.
2 cents to all owners:
OBD2 Code readers and reset devices are cheap, and—in my opinion—belong in **every 200’s kit.** Would stink to be unable to shift into 4Lo on some crazy trail simply because of a goofy, unrelated error prevents its use.
This is one of my main complaints about the system in the 200. Error codes should NOT be able to trigger the unavailability of major functions like 4Lo—unless the error is directly related to that particular system. Seems like about 99% of the time...errors have NOTHING to do with 4Lo. Pretty silly.
In my 200, I have a code reader permanently plugged in...and added an OBD2 extension wire that has a power switch built in. This lets me easily use the OBD2 without even pulling over, getting out, or even turning the engine off. If my evap canister or something throws a silly code...I can clear it literally less than 15 seconds. But again...annoying as heck that such measures make sense.
