Navigation - GPS Signal Lost / Never Detects Signal
#1
Driver School Candidate
Thread Starter
Join Date: Feb 2014
Location: Tennessee
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Navigation - GPS Signal Lost / Never Detects Signal
Hey All -
I bought a 2003 GX470 a couple of months ago and love it. It was a good upgrade from the 98 Land Cruiser I had a couple of years back and much better than my recent X5. Even though it runs great right now, I have one issue bugging me.
The Navigation unit hasn't ever really worked. Actually, it works, but since I bought it has used the secondary system which calculates location based off direction and speed which is only accurate if driving 50 yards or less - even after calibration
I found out how to get into the secret menu and looked through the settings. When I go to the screen which shows connected satellites, it says "Ensure nothing is blocking gps reception." I've tried a couple of resets, but nothing seems to help. I looked up where the antenna is to see if the connections is loose, but the only reference I found said it was on the rear glass. Unless integrated into something, I don't think it is, though.
The system still runs a factory 2003 disc for maps which is Gen 3. I tried a used 2007 map disc which upgraded the system, but didn't help. It gave disc errors so had to go back to the 2003 one. I haven't had a GPS signal since the day I bought it.
Any ideas on what / where I can check to resolve this issue? Was hoping the antennas fine, but either a plug came loose or a workaround exists.
Thanks!
I bought a 2003 GX470 a couple of months ago and love it. It was a good upgrade from the 98 Land Cruiser I had a couple of years back and much better than my recent X5. Even though it runs great right now, I have one issue bugging me.
The Navigation unit hasn't ever really worked. Actually, it works, but since I bought it has used the secondary system which calculates location based off direction and speed which is only accurate if driving 50 yards or less - even after calibration
I found out how to get into the secret menu and looked through the settings. When I go to the screen which shows connected satellites, it says "Ensure nothing is blocking gps reception." I've tried a couple of resets, but nothing seems to help. I looked up where the antenna is to see if the connections is loose, but the only reference I found said it was on the rear glass. Unless integrated into something, I don't think it is, though.
The system still runs a factory 2003 disc for maps which is Gen 3. I tried a used 2007 map disc which upgraded the system, but didn't help. It gave disc errors so had to go back to the 2003 one. I haven't had a GPS signal since the day I bought it.
Any ideas on what / where I can check to resolve this issue? Was hoping the antennas fine, but either a plug came loose or a workaround exists.
Thanks!
#3
Driver School Candidate
Thread Starter
Join Date: Feb 2014
Location: Tennessee
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Thanks. Ill look in the morning. Guess there would need to be some kind of hole or glass in the dash for line of sight. Hopefully find something obvious...
#4
#5
Pole Position
I noticed on another forum that someone lost GPS due to a defective Vais iPod adapter.
Did your GX come with any added on electrical accessories? Could be radio frequency interference (RFI) from some add-on. A long shot I know but...
Did your GX come with any added on electrical accessories? Could be radio frequency interference (RFI) from some add-on. A long shot I know but...
#6
Driver School Candidate
Join Date: Mar 2014
Location: maryland
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
how to get into the secret menu
Hello members, I've been trying to troubleshoot my Nav system and I heard of a diagnostic screen but don't know how to get into it. I have a 05 GX. The problem is the Nav system does not work, I get a blank screen.
Can someone help me out?
I have a feeling that I'm going to have to replace the hard disk in the Nav, when sitting in the car with the ignition on and its very quiet, I can hear the sound of the disk head trying to work but it sounds like its clicking....like a PC disk crash. Has anybody worked on a Nav system before?
Thanks
Can someone help me out?
I have a feeling that I'm going to have to replace the hard disk in the Nav, when sitting in the car with the ignition on and its very quiet, I can hear the sound of the disk head trying to work but it sounds like its clicking....like a PC disk crash. Has anybody worked on a Nav system before?
Thanks
Thread
Thread Starter
Forum
Replies
Last Post
Bzowk
GX - 1st Gen (2003-2009)
3
02-18-14 01:32 PM