NAV Issue
Thread Starter
Pole Position
Joined: Oct 2008
Posts: 334
Likes: 0
From: NC
NAV Issue
Anyone else have this problem?
I have a 2001 with NAV. After updating the NAV to Version 7.1 from 4.1 the unit has developed issues:
1) In the "Destination" menu all of the icons are grayed out as if the vehicle is moving.
2) On "MAP" screen the "POI OFF" icon is grayed out.
3) Occasionally after some time some or all of the icons in the "Destination" menu will come back up, if I try to enter an address or change "Search Area" the unit will freeze up and return to the "Destination" screen to have the icons grayed out again.
4) The rare instances where I was able to enter an "Address", get to my "Marked Point", or "Previous Destinations" for navigation the unit work fine.
5) The Map, location, and movement is normal regardless of above problems
I have tried the following:
1) Unload and reload NAV disk
2) Pulled the NAV fuses as well as all plugs into the back of the NAV ECU
3) Went into the "Debug Diag" menu and selected "Override Drive" in case the ECU thought the vehicle was under motion
4) Preformed system reset from "Version" icon inside of the "Debug Diag"
5) As a last resort, completely removed NAV ECU and opened it up, removed internal battery overnight. Put everything back together and fixed the problem for a week.
Anyone else have this problem?
I have a 2001 with NAV. After updating the NAV to Version 7.1 from 4.1 the unit has developed issues:
1) In the "Destination" menu all of the icons are grayed out as if the vehicle is moving.
2) On "MAP" screen the "POI OFF" icon is grayed out.
3) Occasionally after some time some or all of the icons in the "Destination" menu will come back up, if I try to enter an address or change "Search Area" the unit will freeze up and return to the "Destination" screen to have the icons grayed out again.
4) The rare instances where I was able to enter an "Address", get to my "Marked Point", or "Previous Destinations" for navigation the unit work fine.
5) The Map, location, and movement is normal regardless of above problems
I have tried the following:
1) Unload and reload NAV disk
2) Pulled the NAV fuses as well as all plugs into the back of the NAV ECU
3) Went into the "Debug Diag" menu and selected "Override Drive" in case the ECU thought the vehicle was under motion
4) Preformed system reset from "Version" icon inside of the "Debug Diag"
5) As a last resort, completely removed NAV ECU and opened it up, removed internal battery overnight. Put everything back together and fixed the problem for a week.
Anyone else have this problem?
Anyone else have this problem?
I have a 2001 with NAV. After updating the NAV to Version 7.1 from 4.1 the unit has developed issues:
1) In the "Destination" menu all of the icons are grayed out as if the vehicle is moving.
2) On "MAP" screen the "POI OFF" icon is grayed out.
3) Occasionally after some time some or all of the icons in the "Destination" menu will come back up, if I try to enter an address or change "Search Area" the unit will freeze up and return to the "Destination" screen to have the icons grayed out again.
4) The rare instances where I was able to enter an "Address", get to my "Marked Point", or "Previous Destinations" for navigation the unit work fine.
5) The Map, location, and movement is normal regardless of above problems
I have tried the following:
1) Unload and reload NAV disk
2) Pulled the NAV fuses as well as all plugs into the back of the NAV ECU
3) Went into the "Debug Diag" menu and selected "Override Drive" in case the ECU thought the vehicle was under motion
4) Preformed system reset from "Version" icon inside of the "Debug Diag"
5) As a last resort, completely removed NAV ECU and opened it up, removed internal battery overnight. Put everything back together and fixed the problem for a week.
Anyone else have this problem?
I have a 2001 with NAV. After updating the NAV to Version 7.1 from 4.1 the unit has developed issues:
1) In the "Destination" menu all of the icons are grayed out as if the vehicle is moving.
2) On "MAP" screen the "POI OFF" icon is grayed out.
3) Occasionally after some time some or all of the icons in the "Destination" menu will come back up, if I try to enter an address or change "Search Area" the unit will freeze up and return to the "Destination" screen to have the icons grayed out again.
4) The rare instances where I was able to enter an "Address", get to my "Marked Point", or "Previous Destinations" for navigation the unit work fine.
5) The Map, location, and movement is normal regardless of above problems
I have tried the following:
1) Unload and reload NAV disk
2) Pulled the NAV fuses as well as all plugs into the back of the NAV ECU
3) Went into the "Debug Diag" menu and selected "Override Drive" in case the ECU thought the vehicle was under motion
4) Preformed system reset from "Version" icon inside of the "Debug Diag"
5) As a last resort, completely removed NAV ECU and opened it up, removed internal battery overnight. Put everything back together and fixed the problem for a week.
Anyone else have this problem?
Thread Starter
Pole Position
Joined: Oct 2008
Posts: 334
Likes: 0
From: NC
I don't know if it's the disk, I went back to 4.1 and it's the same way. After a lot of research it appears it's the ECU. Still working on it though.
Driver School Candidate
Joined: Sep 2007
Posts: 22
Likes: 7
From: MI
I'm in the exact same boat with my 2001 LS430:
http://us.lexusownersclub.com/forums...howtopic=52520
Anyone have any luck on this?
http://us.lexusownersclub.com/forums...howtopic=52520
Anyone have any luck on this?
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