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

CHECK WITH YOUR LEXUS DEALER COULD BE SAFTEY RELATED

It sounds as though the belt may be slipping or is not tight enough? If it's a toothed belt it won't slip - it may not be tensioned enough where it goes around the alternator pulley. They are adjustable. A smooth non-toothed belt can slip. Also, check the tightness of the battery leads where they connect to the battery and to the earth - on the bodywork/engine block

I just had the same thing happen! I went to Autozone and Gabriel helped me figure out it was the brake switch that was bad. $16.99 for the part and he loaned me the tools to easily replace it. Life saver! Thanks Gabriel!!
Jeff

If the BCM doesn't see the door being opened, this stays on. It could be a bad door latch(in the door) or a bad dome switch( in the door jam). Both do the same thing. You'll have to see which one you have.

Cigar fuse--15 amp Hopefully your owners manual or fuse box lid will show you which fuse is which.

its in the suspension some were,, it could be any thing and with out checking it out, nobody can say for certain,,, ball joints shockers wheel bearings rubber bushes steering rack/box road wheel/tires anything can cause it to woble
i would have it checked out as it will wear out lots of other parts if you dont get it fixed

Could be a faulty injector. Or a problem with the wiring harness or the engine computer.

It is your Throttle Position Sensor (TPS), the black component on the side of your Throttle Body normally on the right side as you look from the front of your engine.

Take the **** of a screw driver and tap the TPS, while the car is on, you might notice a fluctuation. tapping again may not yield a response but it is prone to jolts.

Before replacing it, try to check the resistance with a Digital Volt Meter on the terminals. You can check Haynes Book at a local supply store that might have it or go to a book store that carry the books. Each series of Lexus/Toyota have there own value. If the values are off, loosen the mounting screws and turn the TPS clock wise until you get the values needed. A slight movement is all that is needed or tolerated so take care not to over adjust or the fix will not work.

If you want to just replace it then not where it is positioned and place the new one starting at a counter clock wise postion then place the new TPS and rotate to exact position the old one was and then tighten down. Caution it is best to check the resistance values to insure proper adjustment.

Hope this helps

Starters shot

Hi , you need to have the battery checked for condition, it may not be retaining charge because one or more of the cells is in bad condition. Assuming you have a 12v battery, it should be producing rather more than that while the engine is running and the charging circuit is performaing it's task of keeping it charged. Ideally this value will be around the 14 v mark. If the value is below the 12v the battery requires then the battery will not charge but slowly become depleted. Somebody should check the battery output with the engine running , with a multimeter, to establish whether this is the case. If the output is below 12v have the alternator checked, check the drive belt is appropriately tensioned so that the alternator can be properly driven. It may be that the alternator itself is faultyand needs servicing or replacement. It might be that there is a fault with one of the components in the electrical system that is the battery to drain, this is not very unusual and can sometimes be traced to components such as the BCM, (body control module,) an electrician can establish this for you. It should be a fairly straightforward task to track the cause of this problem in the case the battery/belt/alternator are at fault.

check for a bad relay, also all the fuses,

there will be no sound , no fuel pressure and it will not start however a bad fuel pump may be the result of other failed units including the relay , pressure regulator, wiring , EVAP system so run the fault codes first to eliminate all other possible causes for the pump not working

what about having the fault codes read ( should have been the first step) the money that you have spent may have been wasted if the timing belt is broken, the immobilizer is operational, cam.crank position sensor problems , no fuel pressure from faulty fuel pressure regulator

i would not recommend bypassing the relay