SH430

I installed my refurbished amplifier today and problem solved. The instructions that came with the unit said that I should wait up to 5 minutes while the amp communicates with the radio, and the radio and the car had to be on during this test. So, I waited several minutes, then tried turning up the sound, and it worked! I ended up getting my amp from my local Lexus dealer. I told them that I found an amp online for $495, and they gladly offered to match the price. Lexus backs the unit with a 12 month warranty. I might of been able to find an amp for less, but I was tired of messing around, I liked the warranty, and I was able to purchase locally. Thanks to all for you support and assistance!

Possibly the amp, I would say so from here. Not unusual though. You could check for a loose connector. Thanks for replying so quickly, dcfish. Any help / advice you can give will be much appreciated. I have read many postings on club lexus of other "01"LS owners having the amplifier go bad. They have even gone so far as to say the "01" amps are defective and must be replaced with "02" or newer amp. Your reputation preceeds you in regards to Lexus audio systems, and you say these amps do not usually go bad. I have already checked the connections at the amp, removing and reinstalling the 3 plugs. Is there any way to tell if the amp is okay other than replacing it? Could you recommend a supplier for a used amp? You could bring the amp in and have it tested, I will look to see if I have an amp for your 2001 LS430 UL. Is there a web site for your shop? I tried to find a list of vendors on fourm. but I'm still learning my way around. I suspect I would have to ship the amp to you, and that would be okay. I checked the "acc" power to the amp, and it is 12+. I am looking at the wiring diagram and don't see the other power input. I'll go back and meter all the connections to the amp. Thanks, Malikqais.

Possibly the amp, I would say so from here. Not unusual though. You could check for a loose connector. Thanks for replying so quickly, dcfish. Any help / advice you can give will be much appreciated. I have read many postings on club lexus of other "01"LS owners having the amplifier go bad. They have even gone so far as to say the "01" amps are defective and must be replaced with "02" or newer amp. Your reputation preceeds you in regards to Lexus audio systems, and you say these amps do not usually go bad. I have already checked the connections at the amp, removing and reinstalling the 3 plugs. Is there any way to tell if the amp is okay other than replacing it? Could you recommend a supplier for a used amp?

Possibly the amp, I would say so from here. Not unusual though. You could check for a loose connector.

Do you have factory wipers on the car? I tried aftermarket wipers on my LS430 and was rewarded with a sound similar to what you discribe. I then installed factory Lexus wipers and the noise went away.

I have a 2001 LS430 UL, and recently the radio was working fine in the morning but there was no sound when I left work in the afternoon. From what I have read in the fourms, I am guessing the amp is the problem. I have metered the speakers and did'nt find anything open or shorted to ground. What else can I check, or is it just time to buy an amp?