Replacing Multi-media Interface ECU - Help
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Pit Crew
Joined: Jan 2008
Posts: 141
Likes: 46
From: CA
Replacing Multi-media Interface ECU - Help
I've been having problems with the entertainment system on my 2010 LX570 since purchasing it used a couple of years ago. See my prior posts for more details about this issue, but basically, during the fall and spring as the temp transitions through about 40-50 degrees in the morning, my audio system goes nuts, randomly switching audio inputs, spitting out CDs, etc. LX570 Audio/Electrical Gremlins
Also, it is not recognizing my 5th Gen, old school iPod (which I still cherish for its amazing audio quality due to its Wolfson DAC). This Technical Service Bulletin addresses the iPod issue. http://www.revbase.com/BBBMotor/TSb/...dPdf?id=167576
So, replacing the old multi-media interface ECU with a new version will fix the iPod 5th gen problems I am experiencing. And, I suspect that this updated part may also address the weird behavior my audio system exhibits a couple of times each year.
Apparently, Lexus updated the ECU back at the time of the TSB (new revision of the PN), the PN (then and now) is 861A0-77010. It is located underneath the front passenger seat.
Has anyone changed this part before? Any tips on removing the old / installing the new ECU? Does the entire passenger seat need to be removed to change this part?
I would greatly appreciate any help!!
Also, it is not recognizing my 5th Gen, old school iPod (which I still cherish for its amazing audio quality due to its Wolfson DAC). This Technical Service Bulletin addresses the iPod issue. http://www.revbase.com/BBBMotor/TSb/...dPdf?id=167576
So, replacing the old multi-media interface ECU with a new version will fix the iPod 5th gen problems I am experiencing. And, I suspect that this updated part may also address the weird behavior my audio system exhibits a couple of times each year.
Apparently, Lexus updated the ECU back at the time of the TSB (new revision of the PN), the PN (then and now) is 861A0-77010. It is located underneath the front passenger seat.
Has anyone changed this part before? Any tips on removing the old / installing the new ECU? Does the entire passenger seat need to be removed to change this part?
I would greatly appreciate any help!!
Last edited by gfcipriani; Mar 9, 2018 at 09:54 AM.
Intermediate
Joined: Aug 2015
Posts: 345
Likes: 9
From: WA
I haven't changed this part but I can tell you that access under the passenger seat isn't a big deal. You don't have to remove the seat from the vehicle. Loosen the four bolts, and you can tilt the seat back and lean it on the second row, with plenty of room to work.
Thread Starter
Pit Crew
Joined: Jan 2008
Posts: 141
Likes: 46
From: CA
This is great to know. Would you advise removing the negative terminal on the battery as well, to prevent any accidental firing of the seat airbags? Seems this couldn't hurt.
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Argelius
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Nov 10, 2009 10:14 PM
