20 Most Recent 2003 Lexus Gs 300 Questions & Answers

Yes the O2 sensor preheater problem will turn on the VSC light, see the complaint often, why? don't know.P0031 TOYOTA - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 1In most cases the O2 being replaced cures the code but here is the full story.Possible causes- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit open shorted to ground- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit poor electrical connection- Faulty Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit fuse- Faulty Engine Control Module (ECM)

How many air fuel ratio sensor and oxygen sensors does a 2003 Lexus ES300 have and can I have a diagram of each sensor and where each sensor goes thank you

May need new actuator. Try a slight lubricant like wd40 if that does not work. Try working switch back and forth. They usually start having problems when they get this old. You can have it replaced, but toyota /lexus is notorious for labor intensive repairs with can be costly if you take it to a dealer or very time consuming if you replace the actuator yourself.

Do you have power and ground at the blower motor ?

Is distributor turning?Is there power to dist?Is there power to coil?Is there a resistor on the coil, is busted?

Jesse, I fixed all my door locks on my 2003 GS300 in one day. Go to http://www.youtube.com/watch?v=5VqGy7_X9MM and watch part 1 and 2 a couple times. Go to http://www.ebay.com/itm/4-pk-MABUCHI-CAR-DOOR-LOCK-MOTORS-DIY-ACTUATOR-REPAIR-Toyota-Lexus-Honda-Ford/121175954510?rt=nc&_trksid=p2047675.m1851&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D261%26meid%3D2128480711916629784%26pid%3D100005%26prg%3D1088%26rk%3D1%26rkt%3D5%26sd%3D120785401379%26and purchase 4 motors for under $20. It is the motors in the actuator that have failed. You will also need a gear puller also from ebay at http://www.ebay.com/itm/Walkera-gear-puller-for-rc-helicopter-TREXESKY-motors-/180614084429?pt=Outdoor_Toys_Structures_US&hash=item2a0d70374d for about $14.So for under $30 you can easily fix it yourself. Hope this helps,Les

Should not be a person today driving any vehicle ,thatdoes not know what to do when any dash light comes onHave the vehicle checked for codes & issues resolvedat a repair shop

Have you had the computer checked for trouble codes yet ?

If it is, the check engine light should be on.Have you had the computer checked for trouble codes ?

My 2000 Lexus GS 400 just had the VSC/VSC off light and the check engine light come on. I would have to push the accelarator peddle all the way down to get it to go. Took it to the Toyota dealer and the code pulled up as the Throttle Position Sensor was out. Purchased one and having it put in. Will update if this fixes the problem.

try changing the fuel filter and adding injector cleaner to full tank of gas