Extracting Codes

Hey everyone, I'm new to this Lexus portion of toyotanation. My friend is having some problem with his 92 es300 engine and transmission. I tried googling how to extract the cel codes but cant seem to find anything on how to do it. Can someone show me the way to get the cel codes and also the transmission codes? I really appreciate the help. Thanks again.

Go to Autozone or Pep Boys and ask them to use their OBDI scanner to read you your codes, they should do it without any charge, or maybe a minimal fee.

Other than that, you'd need an OBDI scanner or you can count the number of flashes of the CEL light and each one has a corresponding set of codes that could be the possible issue, not as specific as a scanner though.

I doubt they have OBD-I scanners. They're nothing but little shorting pins with a light on the end of them. The car has that from the factory LoL! The real Toyota TDLC1 / TDLC2 scanners that Toyota/Lexus have are about $6-7 grand a pop & even they don't scan so much as they log. They just trip TE1&E1 & count the pulses to read the codes like everything else. (Now they can do slow logging on the ES300's & LS/SC400's via the Vf2 data-port like an OBD-II car. It's just *extremely* limited & not worth the effort).





Short TE1 & E1 in either of the two diagnostics ports (DLC1 = Engine bay, passangers side, behind the wheel well, or DLC2 = tucked under the steering wheel off to the driver's side some)
When you turn the key to ON, it'll flash any stored codes. i.e. 1-3, 5-2, 6-9, (yeah!)
http://us.lexusownersclub.com/forums/index.php?showtopic=3725&hl=codes
http://us.lexusownersclub.com/forums/index.php?showtopic=26449

What are the problems you are having & what are the codes?

I doubt they have OBD-I scanners. They're nothing but little shorting pins with a light on the end of them. The car has that from the factory LoL! The real Toyota TDLC1 / TDLC2 scanners that Toyota/Lexus have are about $6-7 grand a pop & even they don't scan so much as they log. They just trip TE1&E1 & count the pulses to read the codes like everything else. (Now they can do slow logging on the ES300's & LS/SC400's via the Vf2 data-port like an OBD-II car. It's just *extremely* limited & not worth the effort).





Short TE1 & E1 in either of the two diagnostics ports (DLC1 = Engine bay, passangers side, behind the wheel well, or DLC2 = tucked under the steering wheel off to the driver's side some)
When you turn the key to ON, it'll flash any stored codes. i.e. 1-3, 5-2, 6-9, (yeah!)
http://us.lexusownersclub.com/forums/index.php?showtopic=3725&hl=codes
http://us.lexusownersclub.com/forums/index.php?showtopic=26449

What are the problems you are having & what are the codes?

AutoZone by me has OBDI scanners...they've read my code on my 1994 Lexus when I had a CEL light (emissions related, bad charcoal canister).

Hey NYLexSC, thanks for the reply. Thats what I was looking for and you were very helpful. I just have one last question, am I supposed to look for the flashes on the dash(CEL) or am I supposed to check the blinks with a test light on the port itself? My friend changed his tranny fluid about 2 weeks ago and the car took a dump a couple days ago. Before we go and buy a transmission, we just want to test the easy stuff like CEL or tranny codes... oh yeah, is there anyway to test the tranny codes? When the car is cold it seems to drive fine but after a minute or two warmed up, it barely moves and the car just revs. Do you think its the tranny?

When you bridge TE1 & E1, the CEL flashes any stored codes in numerical order. Just count the flashes.