sktn77a

iTrader: (2)

Well, my moron son lost the gas cap to our 99 RX300 and proceeded to just close the cover door and drive on his merry way. Fastforward 24 hours:

"Dad, what's that yellow light on the dash like an engine with CHECK underneath it"!

OK, it's probably the gas cap but I've driven it about 60 miles on a new gas cap and it still hasn't gone out. I've bought a universal OBDII code reader but now I can't figure out where the scanner connects in the RX 300.

Can someone point me to the diagnostic connector?

Thanks

salimshah

Near the driver knee level. It has a slide out cover... thankfully the cover is tethered (you cant loose it).

Salim
ps: The evap system (fuel vapors) takes a bit longer to set and reset .... the change is monitored over time.

sktn77a

iTrader: (2)

Yup, there it was. And the person who last checked for codes left the cover off!

Code was: 123 p0440 IUF

"Evaporative emission control malfunction" which I'm guessing, as you say, Salim, that its the gas cap and it may take a couple of days to clear (Bayesian logic).

I'll leave it a couple of days and report back.

Thanks!

ExPatBrit

Why don't you use your code reader to clear it?

Lexmex

Location shown in the sticky thread,

https://www.clublexus.com/forums/rx-...e-you-had.html

sktn77a

iTrader: (2)

I could; does clearing the code make the CEL go out?

carguy07

Yep