Question about 2004 Lexus LS 430
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Posted on Jan 02, 2017
You probably didn't need new tires unless you had some miles on it. Remember that the spare tire also has a pressure monitor as well. It most likely is causing the low tire pressure light on the dash and only needs to be inflated back to what ever your other tires are set to. I had the same problem on my RX and took it back to the dealership where they told me since the spare is exposed to the same elements (it's under the back of the RX - you have to use the tire iron to let the spare down), it will inevidably lose air.
Posted on Dec 06, 2008
Dave, The P0700 code is a generic fault code indicating the the TCM (transmission control module) has recognized a problem and the P0755 is the indicated problem. I'd recommend you check your transmission external electrical connector for water intrusion and corrosion at the terminals by disconnecting the connector. If nothing appears wrong, I'd then recommend you drop the lower transmission pan and take a look at the residue deposit that is laying on the bottom of the pan. You should only see a relativily minor amount of grayish, black clutch material residing there. Pay particular attention for a gross amount of this or any large particular material, including any metal, either filings or chunks, or any brass or aluminum. If this checks out to be fairly clean, then I'd recommend you replace that "B" solenoid (2-3 shift solenoid) and have the trans. pan and filter replaced.; I'd also highly recommend you have the trans flushed for anyother particular matter that may reside internally inside the transmission. You'll have to have the codes cleared and the transmission relearned for shift feel, at that point.
Posted on Jan 08, 2009
Contrary to popular belief the indicator light does not reset itself. Once you put in the proper tire pressure in all tires including the spare you must reset the indicator light. The reset button is located on the driver side underneath the dash panel. Stick your on the break pedal, turn and look up. You will see the reset button. With th engine on and park break on,push and hold te button for 5 seconds. The indicator light will turn off and you are all set.
Posted on Apr 01, 2009
the O2 sensor for bank one sensor one is located between the catalytic converter and the engine in the exhaust head pipe. see photo of your engine cylinder layout, the sensor u want to replace is the one at the cylinder #1 bank on right.
Posted on Apr 15, 2009
SOURCE: 2004 Lexus Ls 430 Low tire
My 2004 Lexus LS 430 has had the light come on several times, even after changing all four tires. There are no tire pressure sensors on my four tires. I was told the car computes tire rotations and since a low pressure tire takes more rotations than a fully inflated tire, the computer puts up a message on the dash.
To reset/turn off the message, put the emergency brake on, start the car and reach below the dash to the right side of your steering column until you feel two buttons in a depressed area under the dash. One button turns on /off your smart key and the other will turn off your tire low pressure message. Depress and hold until the message on your dash goes out and you are good to go. I know this works, I just reset mine a few minutes ago.
Posted on Nov 13, 2009
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