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sprinkles08
sprinkles08, ASE Certified Technician
Category: Lexus
Satisfied Customers: 21594
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Lexus IS 250: 2007 Lexus is 250 speakers nit working. During

Customer Question

2007 Lexus is 250 speakers nit working. During system check, it says amp is not connected. So i bought a used one. Still didint work and still not connected. Check the fuse for radios and replacedZ still not working. Please help. Been like this fir years.
Submitted: 1 year ago.
Category: Lexus
Expert:  sprinkles08 replied 1 year ago.
Hello and welcome to JustAnswer!

I'm assuming what you're seeing is the amp isn't communicating with a scan tool or there is a code in the radio or other modules for a lack of amp communication.

If the amp isn't awake then it has either failed, is missing a power ground, or there is a communication bus issue. It's possible that the replacement amp is also bad but there may also be a wiring issue.

If fuses are good then the next step would be to test the powers and ground at the amp. If the amp is good then it's most likely missing a power or ground.

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