Top 20 2005 Lexus LS400 Questions & Answers

Locate your starter and with the vehicle in park have an assistant hold the key in the crank position while with a test light you check for power at the posts on the starter solenoid. One post shoul have power from the battery, the other from the ignition switch and the other should supply power to the starter motor. Make sure your battery is in good shape and fully charged. If all you get is a click from the solenoid then it's likely that you need a starter. If no power fom battery check battery and positive cable/connection for integrity and tightness. The small post is power from the ignition switch if no power her with the key on the crank position check fuses, park/neutral safety switch and it's related wiring.

2005 Lexus LS400 | 322 views | 0 helpful votes


2005 Lexus LS400 | 203 views | 0 helpful votes

sounds like an engine immobilizer problem. close all doors,hood & trunk completely. lock and unlock the car three times with remote, then put key in door lock and lock & unlock three times.
did you accidently try to start with wrong key?

2005 Lexus LS400 | 637 views | 1 helpful votes

Thanks for the clarification. Engine needs 3 things to run. Compression , fuel , spark.
It's turning over so you have compression.
Check a couple of spark plug wires for spark.
If you got spark , most likely no fuel.

Was it running before the "tune up" ?

2005 Lexus LS400 | 310 views | 0 helpful votes

do u know where is the starter ?????????

2005 Lexus LS400 | 299 views | 0 helpful votes

The Lexus Link system was abandoned in 2004 due to the systematic shut down of analog cellular phone services. The Link system is strictly analog, and when the FCC directed a transition to all digital for cellular providers, this let the Link System inoperable.
When the Link system attempts to initiate service, it can not and results in an error.
While it is possible you have additional issues, it is rather unlikely, and you will never be able overcome the missing service error.

In March of 2004, Lexus began removing the systems from customer vehicles free of charge. Unfortunately the dead line to have this done as a free service ended in 2007.
You can still have the system removed/bypassed in the same fashion as the temporary recall campaign, but are responsible for the costs incurred. The cost is typically $150 to remove the abandoned hardware and eliminate the voice message error.
You can refer your local dealer to:
* Campaign LSC-4LA - Campaign - Lexus Link(R) System Removal

Regarding the bluetooth upgrade, there is no later model unit that is compatible that you would be able to swap out unfortunately. You will need to go with a third party adapter such as Parrot in order to have a built in bluetooth system.

2005 Lexus LS400 | 85 views | 1 helpful votes

the motor is most likely defective for the inop function

2005 Lexus LS400 | 330 views | 0 helpful votes

Sounds like the sway bar stabilizing links are shot.

2005 Lexus LS400 | 603 views | 2 helpful votes

You may have corrosion inside your battery cables or a loose connection somewhere.

If you have a voltmeter connect one lead to the POSITIVE post of the battery and the other to the POSITIVE post on your starter while you have a friend crank the engine

This is called a voltage drop test and you should see less than 0.5v on the multimeter while you are trying to start it, if you have high resistance (corrosion bad connections) you will see a higher voltage. 0.5v is the MAX you should see.

Do the same test on the ground side of the circuit, connect to the NEGATIVE battery terminal and the starter case, your voltage reading should be 0.1v or less

2005 Lexus LS400 | 842 views | 1 helpful votes

try giving it a jump or re-charging the battery too.

2005 Lexus LS400 | 552 views | 0 helpful votes

check the release mechenism if not broken,also check piviot point for obstruction

2005 Lexus LS400 | 456 views | 0 helpful votes

Check your coolant level sounds like it might be low.

2005 Lexus LS400 | 1,043 views | 0 helpful votes

check the brakes for sticking, will it go in reverse?

2005 Lexus LS400 | 254 views | 0 helpful votes

check to make sure there power streering fuild in da pump,and check hoses for leaks.

2005 Lexus LS400 | 498 views | 0 helpful votes

that could be the rack and pinion leaking. as far as the noise goes, it is more than likely the same thing. have your local mechanic check it out because if its the power steering pump its cheaper to fix that than it will be to have the rack replaced.

2005 Lexus LS400 | 1,199 views | 0 helpful votes

Check the ignition switch, there is battery voltage to the fuel pump and ignition, because the engine starts with switch in the start position, now check the above with the switch in the run position, If there is no voltage replace the switch.

Lexus LS 400... | 176 views | 0 helpful votes

sensor 1 is the sensor located before the catalytic converter and bank 1 is the side of the engine with cylinder #1 so if i'm correct and you have a V-6 that would be the rear of the engine by firewall and the sensor would be in the exhaust manifold

Lexus LS 400... | 230 views | 0 helpful votes

traction control is for control of the traction of the drive tires
Tale it to a professional brake shop for a proper diagnosis
grabbing brakes is more likely no brake pads and / or damaged rotor discs

Lexus LS 400... | 81 views | 0 helpful votes

1990 Lexus LS400 Service Repair Manual Download Try it asap.. I bought today. it's very cheap and very reliable. today they have offers as well.

Lexus LS 400... | 54 views | 0 helpful votes

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