Lexus IS 300 - Recent Questions, Troubleshooting & Support - Page 6

It's the Ballast. You have to pull the front bumper off to get at it. It's about $100 for the part. Good luck

The Oxygen sensor just pick up a lean condition but it is not the cause of the car jerking,If you replace the 02 sensor you will still have the same problem,this is what you call a lean misfire. because it doesnt do it all the time it is intermittent,this can be caused by a shorting coil plug wire seeking ground or even a plug wire sometimes shorting out. Another cause could be a torn boot to the throttle body from the MAF(Mass air flow).

some type of matience have the code pulled to see what the vehicle is saying needs to be done sensors are telling the car it needs matience done to it once the matience is done light will go off until next time it needs something else

Below is the master help link provided to go through belt routing diagram:---Timing belt, drive belt, serpentine belt, accessory belt, fan belt, engine belt routing diagrams for all types of car models? Click the link below: ----

http://carbeltrouting.blogspot.in/2012/02/timing-beltdrive-beltserpentine.html ----------This will help. Thanks.

check the trunk release switch.. maybe it is not working anymore and needs to be replaced.