2004 Lexus LS 430 Climate & Audio Control buttons
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2004 Lexus LS 430 Climate & Audio Control buttons
I have a 2004 Lexus LS 430 with 88,000 miles on it with the Navigation System & ML Sound System. The audio buttons & climate buttons on the Navigation controls only work intermittently, and frequently do not work at all. When you hit the buttons nothing happens Other times, they function normally. The smart key on the car has also stopped working all together.
I had a IPod connector installed in the car about a month ago at a cost of $425. Not sure if this is contributing factor or not. The climate & audio controls have worked since this was done, but also still fail intermittently. I have had the car into Lexus and they disconnected the IPOD connector and told me this would solve my problem, but the climate & audio buttons still do not work consistently (work less than they did before).
Lexus replaced the batteries in the SMART key and this had zero impact on correcting the issue. The SMART key was not working prior to installation of the IPOD connector, so this had nothing to do with it.
Any ideas on solutions would be appreciated. I am wondering if the NAV unit is going bad.
Thanks,
Dale
I had a IPod connector installed in the car about a month ago at a cost of $425. Not sure if this is contributing factor or not. The climate & audio controls have worked since this was done, but also still fail intermittently. I have had the car into Lexus and they disconnected the IPOD connector and told me this would solve my problem, but the climate & audio buttons still do not work consistently (work less than they did before).
Lexus replaced the batteries in the SMART key and this had zero impact on correcting the issue. The SMART key was not working prior to installation of the IPOD connector, so this had nothing to do with it.
Any ideas on solutions would be appreciated. I am wondering if the NAV unit is going bad.
Thanks,
Dale
#2
Do you have a problem with button on touch screen also? Or you have problem only with buttons on navigation panel?
Is this problems appear together? I mean smart key problem and problem with navigation buttons.
Where the ipad was connected? To the navi ECU on the trunk?
Do you have any problems before ipad installation?
Is this problems appear together? I mean smart key problem and problem with navigation buttons.
Where the ipad was connected? To the navi ECU on the trunk?
Do you have any problems before ipad installation?
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Do you have a problem with button on touch screen also? Or you have problem only with buttons on navigation panel?
Is this problems appear together? I mean smart key problem and problem with navigation buttons.
Where the ipad was connected? To the navi ECU on the trunk?
Do you have any problems before ipad installation?
Is this problems appear together? I mean smart key problem and problem with navigation buttons.
Where the ipad was connected? To the navi ECU on the trunk?
Do you have any problems before ipad installation?
On the ride home tonight, all of the buttons magically started working again, even though they were out most of the day and I made multiple trips in the car. It is the goofiest problem.
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Do you have a problem with button on touch screen also? Or you have problem only with buttons on navigation panel?
Is this problems appear together? I mean smart key problem and problem with navigation buttons.
Where the ipad was connected? To the navi ECU on the trunk?
Do you have any problems before ipad installation?
Is this problems appear together? I mean smart key problem and problem with navigation buttons.
Where the ipad was connected? To the navi ECU on the trunk?
Do you have any problems before ipad installation?
#5
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The buttons on the Navigation screen (where the map is) appear to work fine. My problems are on the plastic buttons to the right of the Navigation screen. The Plastic buttons are titled: Climate, Audio, and Options.
On the ride home tonight, all of the buttons magically started working again, even though they were out most of the day and I made multiple trips in the car. It is the goofiest problem.
On the ride home tonight, all of the buttons magically started working again, even though they were out most of the day and I made multiple trips in the car. It is the goofiest problem.
#6
I found that it could be (or must be) gateway ECU. Only this ECU (Multiplex Communication System) is communicating and transferring signals from Nav Panel to Audio and climate ECU. It also responsible for smart key system.
Maybe it is something wrong with harness connectors or gateway ECU malfunction.
Maybe it is something wrong with harness connectors or gateway ECU malfunction.
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#8
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I found that it could be (or must be) gateway ECU. Only this ECU (Multiplex Communication System) is communicating and transferring signals from Nav Panel to Audio and climate ECU. It also responsible for smart key system.
Maybe it is something wrong with harness connectors or gateway ECU malfunction.
Maybe it is something wrong with harness connectors or gateway ECU malfunction.
Thanks,
Dale
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