saturday morning, when i was trying to reverse the car out of the driveway, i notice that most of my dash lights was blinking (afs, p/s, abs, triangle light, and brake) and my power steering was stiff. once i reversed it by using my manly power i also found out that my speedometer wasn't working either. can someone help me diagnosis it? i have an 06 gs300 awd without warranty

 

Go to your local parts store or the dealer, let them plug in the scanner and they can read the codes to tell you what is wrong.

 

i did that already and they said they couldn't get into the computer system

 

Wow...really strange. Any recent service done to the car by chance? If so, what was done?

Next step would be to try a dealer or independent repair shop to begin.

 

how old is your battery?

 

yeah its super strange. i haven't done anything to the car and got my last recalls done earlier this year. right now my car is at the dealer and they still don't know whats going on because their computer can't recognize those lights. hopefully they won't charge me an arm and leg for diagnosing it

 

the computer can't recognize the lights, weird... almost sounds to me the main ecu is blown...

 

^ if ecu blown, that would be pretty expensive to replace!

 

Yea this is not lexus like dude, hope things work out you're way.

 

3days has passed and they still don't know the problem is! This is breaking the bank and my black Friday shopping spree is shot. Thanks Lexus for the early Xmas presents.

 

ecu control everything, I dont think you can start the car with a blown ecu.

Best is use your "man power" and try to take it to the dealer. Let us know what happen.

 

Just could be a failing battery. Could have mesured the Voltage from the battery.
I believe the P/S runs on electric. That's your clue.

 

This was the problem with my 2006 GS. The battery was leaking gas that affected the power steering ECU which then set off a chain reaction of computer failure. All steering related items failed and the associated lights lit up, CHECK VSC showed up, CHECK 4WD,........everything but the check engine light. I was able to get the car to Lexus with the lights on and they were able to read the CAN-BUS codes (different from usual OBD coded associated with emissions and check engine light). In addition to my problems, the computer failures basically caused the ECUs to throw up. This in turn caused some "odditiies". My speedometer worked but the temperature guage dropped to C, the light behind the gear selector went out and the outside temperature would read "E".

When the battery was load tested, it failed. It had enough juice to always start the car, but it would heat up and emit a gas that affected the steering ECU and then start a chain reaction of computer related issues. The steering ECU is located directly under the battery case. Lexus is aware that there is a problem with the original Panasonic batteries.

Have your battery load tested and replaced if necessary.

steviej

 

omg this sounds pretty insane... great info steve. in some way i hope this is what happened to OP's car so they can diagnose this quickly

 

hey there, does anyone know if its safe to put 225/45/17 tires on stock rims that had 225/50/17 tires to start.