Question about 1991 Lexus LS 400

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We just bought a 1991 LS400 we bought it off a car lot they just installed a new battery. now we cant get the radio to work. nobody knows the code what do we need to do?? please help thanks Shawn

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Check with a lexus dealer

Posted on Jul 31, 2009

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I have no electrical power in the car

Probably time for a new battery.

Dec 30, 2012 | 1991 Lexus LS 400

1 Answer

My 1991 Lexas LS400: All of the dash icons light up and radio goes on/off (at the same time) when applying the brake and/or while the `car has stopped. Had new battery checked, the battery is good....

I've seen this before, the problem ended up being the brake light bulb lead contacts touching each other on the dual filament bulbs allowing back feed voltage to travel through the park/dimmer switch circuit causing the lights to activate while pressing the brake pedal. I would pull all the brake light bulbs out and look at the back of each one, if you see nothing unusual, I would still replace them all only because it could be internal to the bulbs as well. Let me know if this fixes your problem.
I hope this info helps!~subyguru~

Jan 19, 2012 | 1991 Lexus LS 400

1 Answer

Have replaced both alternator and battery in 1995 LS400, still no radio, heater fan need help

your radio system is amplified sound system, the amp. is in the rear compartment under the rear window area, need to get the radio car system checked by a professional, they are a little bit complicated. as far as the heater same advice. the alternator and battery ,mainly keep the car going, battery for starting, alternator just keeps the electrical systems on your car supplied with power.

Nov 12, 2011 | 1995 Lexus LS 400

1 Answer

I have a 1991 honda accord. I have the security code for my radio. I had to install a new battery. How do I put the code in and get it to work?

Here are the steps for a 1991 Accord, but keep in mind you only have three chances to input the code before the radio locks up.
1. Turn the ignition to on, but not the engine. 2. Hold down 1 and 6 and turn on the radio. 3. The readout should display "Code", let go of 1 and 6 at this point. 4. Enter the code.

Mar 01, 2011 | 1998 Honda Passport

1 Answer

Hi, I have a 1991 Volvo 740 and on the radio it says codE, I didnt know at first you were supposed to enter a code so i ended up pressing a lot of buttons. Now the radio is stuck saying EEE, I looked into...

Remove the postive battery from the battery touch it to the negtive for 20 secs and reconnect this will reset all computers to factory settings..
Enjoy you tunes!

Oct 29, 2010 | 1991 Volvo 740

1 Answer

Where is the fuel sensor for a 96lexus ls400

left bank is the driver side. there is also going to be sensor 1 or 2. most often its sensor one. you really cant clean it, once its bad thats pretty much it for the sensor.

Sep 04, 2009 | 1991 Lexus LS 400

2 Answers

Radio locked 1991 lexus ls400

do you know how to reset radio code lexus ls 400 /1991

Aug 14, 2008 | 1991 Lexus LS 400

1 Answer

My 1991 lexus ls400

The most likely problem is your alternator, the alternator charges your battery while the engine is running, if the alternator is bad you have a dead battery, but you can check with a volt meter to ensure that is your problem. Start your car (use a battery charger or jump to start it if you need to) and put your meter on the battery post's. If your reading 13volts or so your alternator is working and maintaing voltage, however if your reading starts dropping to 10 or less(may take a few moments to drop) then it's probably your alternator. You can also check your battery's voltage before starting your vechile, if the voltage increases after you start the vechile then it seem to be charging. Alternators can be repalced somewhat easily, it's only two boltsm however you do have to remove the fan belt, and re-route after installing the new alternator. If you have some expirence working on cars you can do this yourself in your driveway.
Good luck

Here's a start for you, hope this helps

Jul 18, 2008 | 1991 Lexus LS 400

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