LuxIS300

2001 IS300 only 95k miles. Check engine light is on for P0440 - Evaporative Emission System. ABS light is on and TRAC OFF light is flashing. Do you know what exactly is going on here ? Anything is appreciated.
Things i have tried: I unplugged negative charge in battery. And re-attached it. Nothing. Un-attached the battery completely and let it sit for about 5 minutes. Re-attached it, all the issues are still there.

anotherLS

iTrader: (9)

gas cap on tight? like a couple of turns, or you might have a bad 02 sensor

LuxIS300

anotherLS. Thank you for the tip. Yes, gas cap is tight. I have had to get gas multiple times. Cleared the check engline light after fill up and it comes back on after like 30 miles or so. Lets say its a bad O2 sensor. Will replacing O2 sensor fix the ABS light that is on and the flashing TRAC OFF light ?

isusu8o8

have you done any mods to your car?

lookalike

i actually had a similar issue with my car back when it had like 60k miles. At that time it was luckily under warranty but the O2 sensor went out and i got the same ABS/TRAC lights blinking... anyway once the dealer replaced the O2 sensor the issue was gone. Doesn't make sense to me but apparently the cars computer freaks out when the O2 sensor goes out. which we all know is one of the few common issues with this car.

LuxIS300

isusu8o8: Nope. No mods. Its fully stock.
lookalike: Thank you. It does makes since cause all of these issues started at the same time. In my case, I'm getting P0440 code. Evaporative Emission System. How do i know which O2 Sensor to replace ?

jwrighteh

I have a 1998 ES300. I just had the rear struts replaced. When I started the car to drive away from the repair shop, the TRAC OFF light started flashing and the 'ABS' warning light came on. Could this be related to anything that might have ocurred while the struts were being replaced?

dsouthmia0

iTrader: (3)

when ur check engine light comes on the track control light flashes to get ur attention. If the sensor is the problem then replacing it would get rid of all the lights.

jwrighteh get the codes read I'm not sure

czum09

Yea they might have stretched one of your abs sensors. That results in needing a new sensor. My car has had the lights flashing at me since I bought it lol

dedott21

I had the same problem 2 weeks ago being in a rush,I forgot to tightened the gas cap but i replaced the gas cap but didn't throw the old one away! once i did the the ecu resest(unplug the negative bat cable) for 5 mins and place the battery cable back on and no more codes! i suggest you keep your oem gas cap because when I bought the new cap and I threw the same code(p0440), I replaced the new one with the old one and I've never had any problem since!

is350memb

o2 sensor bro. check it

voleduy

I had the same issue with my IS. Usually with the TRAC light flashing, there're some unplugged or not completely plugged connectors. Did those lights come up after you've done something with your car. If yes, then check all the connectors that you worked on to insure they are plugged in.
Wait for the update.

rxver

I have 2001 IS 300 and I got that check engine lights ON and TRAC lights flashing at the same time my APPS went bad... but after replacing my APPS it went out... NO CLUE why???

linzetta93

I put lowerings on thr front of my lexus. Then when i.turned the car in the ABS & trackion control light is on. Is something not hooked back up right? It didnt have any lights on before.

Scratchy

most likely unplugged or broke an ABS sensor.

jump these 2 pins on your obd2 plug:


check the service manual for the codes. it can be found as a pdf online. should narrow it down to which wheel(s) is causing the trouble code.

or you can just go brute force, and check the ABS sensor on each corner.