RX - 1st Gen (1999-2003) Discussion topics related to the 1999 -2003 RX300 models

Radio failed 2001 RX 300

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Old 03-26-20, 08:23 PM
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Bill Dowd
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Default Radio failed 2001 RX 300

Has anyone had their radio failed and what did you find might be the problem. Mine still shows the radio stations but there is no volume. I checked the 25 amp fuse in the engine area 7.5 amp fuse under the dash board.
When I try to change the base or treble nothing happens, also my CD changer is working again no volume. Is there anything thing I can do except go to a junk yard and try find a used one.
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Last edited by salimshah; 03-27-20 at 09:44 AM. Reason: Forum rules
Old 03-26-20, 09:21 PM
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maxSteel
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Originally Posted by Bill Dowd
Has anyone had their radio failed and what did you find might be the problem. Mine still shows the radio stations but there is no volume. I checked the 25 amp fuse in the engine area 7.5 amp fuse under the dash board.
When I try to change the base or treble nothing happens, also my CD changer is working again no volume. Is there anything thing I can do except go to a junk yard and try find a used one.
Does anyone in So Cal have a used radio would like to buy it from a private party instead of a junk yard.
Maybe the onboard diagnostics will help.
https://www.clublexus.com/forums/rx-...ml#post8946132

Old 03-27-20, 04:04 AM
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JAB
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First, be sure you have not inadvertently hit the 'mute' button.
Old 03-27-20, 07:59 AM
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ricco750
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Failed Amp?
Old 03-27-20, 09:01 AM
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Bill Dowd
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Max you sent over knock sensor information is there a self test for the radio??????
Old 03-27-20, 09:42 AM
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salimshah
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The audio is split into different units and AC controls are built into the head unit. I would highly recommend some testing before you try to replace items.

From your description it seems your head unit may be oK and the problem is in the Amp. You will need to trace presence of audio (low level) signal at the output of the head unit, or feed the low level audio to the Amp.

Lexus lineup offers 2 or 3 types [Nakamichi, ML] of audio equipment for their models and they are not interchangeable. Later model RX also got a more powerful audio [I think those are interchangeable].

Summary: Please investigate more before making a purchase.

Salim
PS: For sale or want to buy, please check out the Market Place thread. The policy is not to post such a request in the model forum.
Old 03-27-20, 07:42 PM
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Margate330
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Does this help?
Attached Files
File Type: pdf
radio1.pdf (126.4 KB, 109 views)
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salimshah (04-03-20)
Old 03-28-20, 01:07 PM
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Bill Dowd
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Margate,
Thanks for the information this information will help me do some test on the radio.
Bill D
Old 04-03-20, 04:20 PM
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Bill Dowd
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Margate,
I downloaded the radio info and after 3 days today using different codes, today, I got in the RX300 and forgot I left the volume full.
The radio came on full blast and that did the trick the radio is doing fine thanks for the help!!!
Old 04-03-20, 05:00 PM
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JAB
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So what is the explanation?
Old 04-04-20, 11:57 AM
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Margate330
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Hi Bill,
You didn't tell us how you fixed it. lol
Details please since I was thinking maybe you had a bad amp or communication problem something.
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