Hi, newbie alert.
I have the same problem on a 01 RX300 exported to Cambodia. I'm able to reset the engine/VSC lights by the methods shown, but I find that after one day of driving it all just starts again. Likewise my temperature gauge seems to be very low even when stuck in traffic/40c+ temperatures. Also, my idle speed is very irregular so I'm thinking that this is a MAF problem (had a similar thing on a 928 back in the UK). I'm going to give the sensor cleaning idea a go, but wondered if anyone can recommend what parts would normally be changed if the MAF was faulty?
I'm a bit stuck here as there is no Lexus dealer in Cambodia, and the local knowledge is simply to reset the lights rather than tackling the problem. I'd like to be able to list the parts to change and to be able to point them out to a mechanic here who might not be very good at English! Any help would be much appreciated - particularly if anyone has recommendations on where to service an RX300 properly in Cambodia. There are a heck of a lot of imports of RXs from the US, most of them with a very dodgy history - thankfully I checked about 20 of them via the VIN number and AutoCheck and found only two that were as near to genuine as could be expected; the rest were clocked/write offs, etc. I'm figuring that there must be somebody here that knows how to fix these cars properly rather than the 'quick-fix' mechanics I've found so far.
Suspect you might be hearing more from this side of the planet in the future :)
