Good afternoon, ladies and gentlemen of CL!! I have a 2009 Lexus LS 460 and I am trying to get power to my amp I have done he test light to all these fuses, and wires to the amp. I have come up with that I have remote power from the blue wire but I have no constant power in from the wires at all. I am wanting to know which wires would be my constant and where is the power coming from? IE fuse, module or what. Any help would be greatly appreciated because this is killing me, riding with out music!!!



This is the blue wire I am getting power from and nowhere else is there power coming in.

 

It may help if we understood what you're trying to do. If you're just replacing a bad Lexus amp with the same, you wouldn't need this info. What are you trying to install/change?

 

I am trying to get power to my amp. I'm not getting power to the amp. I have checked the fuses and checked the wires going to the amp but the only power I'm getting is from the blue wire I stated in the 3rd Pic.

 

I'm no expert but knowing how complex LS wiring is, it's possible that the head unit sends a signal on a different plug for power. Have you checked multiple fuse panels? It's possible more than one panel is involved. United Radio is a repair service several members have used. They are happy to talk to you and help with your issue. Otherwise getting hold of the Lexus shop/repair manual may guide you. I believe you can subscribe to them online. Maybe another member will chime in. Riding without music is unbearable.

 

That's what I was trying to figure out. Because I have checked all of the fuses in the engine bay, under the glove department and in the trunk. And everything seemed to check out. I checked the wires coming into the amp and I only got power from one wire and it was a blue one line the remote wire for the amp. That's why I wanted to know what wire was getting power and not getting power.

 

I was not aware that non-ML cars have a stereo amplifier...

 

The wiring diagram in this thread should be for both ML and non-ML amps. Hope it helps you, and good luck!
https://www.clublexus.com/forums/ls-...l#post11403695

 

Thank you Iwphat66. I have a question for you. where exactly is the junction connector box?

 

Sorry, no experience with the junction connectors or individual wiring, as my refurbished amp was plug and play. I'm guessing you're chasing the ground leads for the R43 junction connector?
Maybe try replacing that 30a fuse first, sometimes they look good but are not?

Has there been any water/moisture intrusion into the amp area? Also, these amps are known to give out, I estimate anywhere from 10-15 years from posts on this forum and my own experience. On my 2007, I replaced my amp with a refurbished unit 2.5 years ago at a cost of $442 which included a credit for sending my old amp to them.

As a precaution, now I turn the volume down and turn off the audio system before I shut the car off. You know, juju and all. LOL

 

Yes sir I am chasing that ground because I have checked the fuses with my test light and they check out good. No moisture from the looks of it but I'm looking for that ground wire as we speak!

 

Ground wires are white with black stripe wires in your first picture.