20 Most Recent 2000 Lexus LS 400 - Page 6 Questions & Answers

check power to your rear tailight bulbs positive to see if they even get power with the headlight switch on. if your headlights come on then it's probably not a switch issue. Just check and make sure that you have power and ground to your tailights. It sounds most likely like an electrical problem. The best way to find the problem is to get an electrical wiring diagram and go through the system. But definately first check power and ground at the tailight bulbs to start.

Have a front end or tire repair shop check this out.

If all four tires are at the proper pressure then check the spare. It has a sensor too.

Turn the Key OVER and see if you can rotate it then. Are your Wheels turned HARD and the Steering Wheel Locked? Are your Wheels against a CURB and not allowing the Steering Wheel to rotate to remove the Locking Mechanism to go freely?

Depending what part of the country this car was purchased originally, the alarm system can be different. These are after market systems installed by the distributor or dealership. Different systems are connected differently. Either way the alarm system is connected to the engine controller and or the main electrical circuit. This has to be removed and the circuit reconnected. I would advise taking to a car alarm specialist and have them replace or remove it.

-Mostly coil. Good luck Mai

You have a short circuit or a bad switch somewhere near the fuse box or behind the fuse box as Ecu is also been not getting the complete voltage so kindly check the short circuit while testing from the battery wire to fusebox .Do it early before it blows your ecu.

Yes near the passenger side of the car close to the floor is the actuator, it is about 6 inches away from your blower motor closer to the center of the car, there are three screws holding it in and one is very difficult. Once you pull it out you can turn the door by hand, just have the heat blowing when you do it so you know when you have it on heat. after you have done this to get heat fixed for now watch your actuator as you turn it from cold to heat and back again, "if it turns then your blender door is the issue. if it doesn't then check the voltage going to it, if you do not have any pull the switch out and check for voltage there. If your actuator doesn't move and you have voltage, the actuator is the issue. If you have no voltage at the actuator and you have voltage to the switch it is the switch that is broken. hope this helps you. I’m happy to assist further over the phone at https://www.6ya.com/expert/brock_d67526d2a834c47e