How to Check Fault Codes on your Lexus LS400

In the last couple of months, I've had numerous people reach out confused on how to check their engine codes on their Lexus LS400. I wanted to give a very clear and easy step by step on how to do that, I hope this helps:)

[@rutopovi]

I already new that be for but still I have to tell you…your explanation is perfect!

[@sexus400]

I appreciate it man!! I tried my best to explain for people new to the platform!

[@kidsteach938]

Thanks so much Ezra. You have a natural ability to teach and explain!

[@sexus400]

thank you! I appreciate it a lot!!

[@gahbah274]

Good ol' Japanese cars...My 95 civic had the same thing. Just need a $0.01 paperclip for diagnosis. Ah gotta love it. Thanks bro!

[@sexus400]

yep!! I absolutely love it haha

[@hypster814]

Thank you so much. Just got a 1997 Lexus LS400, was wondering about this.

[@sexus400]

I'm glad I could help man! that's awesome!!

[@c5soj338]

Not working for my 96 :/

[@sexus400]

hmm. it definitely should. maybe you don't have the jumper wire pushed in enough to make a connection?

[@SarrioVisionary]

Bro I appreciate tf out this video

[@sexus400]

I'm glad this helped man🤙🏻 hope you figure out your problem

[@SarrioVisionary]

@@sexus400what if the check engine like isn’t pausing

[@neitodesu]

​@@SarrioVisionaryif either light continuously blinks with no pause, that means you have no codes

[@sexus400]

yeah, what the other comment said. if it is constant blinking. you have no codes👍🏻

[@_whacky]

The O/D off isnt for odometer its for overdrive I'm fairly sure

[@sexus400]

did I say odometer? I meant overdrive!

[@abdullahallaif]

Hello, my car is a 1991 Lexus 400ls. The fuel pump failed and now after it was replaced, the electricity went out from the fuel wires and the electrical wires for the spark plugs. Can you help me if you have any information?

[@sexus400]

check your fuses to see if any of them are popped

[@justinhodges200]

Great video. Liked and subscribed.

[@sexus400]

appreciate it man!!

[@isaaccruz4870]

So if the check engine just blinks fast nothing is wrong with it then ?

[@sexus400]

I believe so. is your check engine light on when your driving?

[@adamnrt4232]

Does this work for any codes in the system ? like not just engine/transmission codes ?

[@sexus400]

what other codes would you be looking for?

[@adamnrt4232]

@@sexus400 all my power windows work intermittently, when one works they all do. usually once I crank it up they’ll work but after a while they all stop, no noise or anything coming from the regulator and I’ve been thru about 3 window switches. I have some issues with my gauge cluster aswell not sure if that’s related but I doubt it.
any ideas ? I thought damaged wires but I chased the harness all the way around

[@sexus400]

grounding problem somewhere would be my guess. common problem especially for those gauge clusters. usually have to send them in somewhere to get fixed. I wouldn't be surprised if it is a similar problem with the windows but im not sure. these cars are too old to get any other codes or anything like that besides engine and transmission. idek if new cars would tell the problem on stuff like that haha

[@oscarmarquez7834]

Did you fix the issue? If you did, what was it?

[@sexus400]

no I never did. car never ran weird so I just left it. I plan on fixing it this winter tho. I think it was a vacuum modulator or something. I cant remember what it was called.

[@qrhnapo3532]

Goooooooood 🎉🎉

[@BigThomas559]

Ik how it works bc of this video but now…. My check engine light keeps blinking with no pause….. idk 🤷🏼‍♂️

[@sexus400]

if it is just continuously blinking I believe there are no fault codes in the system

[@sexus400]

if I remember correctly, that's what it means haha