Factory Navigation
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,984
Likes: 16
From: Amityville New York
Factory Navigation
Hi guys I bought a factory navigation for my C6 a while now, I installed it and the anti theft was activated, I took it to a shop with a Tech 11 and had it programed to cleared the programmable vin, it started working fine, but the navigation is not working.
I did some checking and after speaking to a few friends I was told that the person who cleared the code accidentally cleared the map reader, I don't know if it is possible and if he did, all I know is I need it to work and will like to know if there are any way I can get it to work again by having it reprogram, can the same person who cleared the anti theft code use the same tool to get it working again. The head unit is not reading the navigation disc.
I do have the GM factory disc into the system and its a good working disc because I had it checked with a friend navigation system and its working, my system is saying ' no map data" Everything else is working fine, radio, xm radio, cd, but not the navigation.
Can anyone give me some advice on how I can resolve this problem, I really don't want to change out the factory system, hence the reason I bought this radio from a crash vette so I can still have the factory look with navigation added.
I did some checking and after speaking to a few friends I was told that the person who cleared the code accidentally cleared the map reader, I don't know if it is possible and if he did, all I know is I need it to work and will like to know if there are any way I can get it to work again by having it reprogram, can the same person who cleared the anti theft code use the same tool to get it working again. The head unit is not reading the navigation disc.
I do have the GM factory disc into the system and its a good working disc because I had it checked with a friend navigation system and its working, my system is saying ' no map data" Everything else is working fine, radio, xm radio, cd, but not the navigation.
Can anyone give me some advice on how I can resolve this problem, I really don't want to change out the factory system, hence the reason I bought this radio from a crash vette so I can still have the factory look with navigation added.
Last edited by TRINIC5; Feb 25, 2017 at 08:48 AM.
Melting Slicks
Joined: Feb 2014
Posts: 3,123
Likes: 412
From: Miami FL
https://www.corvetteforum.com/forums...post1579261000
I'm assuming you installed the Gps antenna as well and not just the head unit right?
I'm assuming you installed the Gps antenna as well and not just the head unit right?
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,984
Likes: 16
From: Amityville New York
https://www.corvetteforum.com/forums...post1579261000
I'm assuming you installed the Gps antenna as well and not just the head unit right?
I'm assuming you installed the Gps antenna as well and not just the head unit right?
Drifting
Joined: Mar 2010
Posts: 1,901
Likes: 361
From: TX
The laser diode head is not accessible in the OEM Nav system, so there is no way to clean it. I've even tried dissembling it, and still could not get to it.
Many of the factory nav units have had problems reading the map DVD, and it is a known issue with GM. I had mine replaced twice under warranty because of this problem. The last time the dealer told me that they had an "upgraded part number" for them now. He also told me they have seen this same problem with the same Nav system used in Cadillac and other GM models, and that it has been a big problem for GM. I suspect this had a lot to do with the new cars no longer using a DVD for the map data, and instead using physical memory.
Many of the factory nav units have had problems reading the map DVD, and it is a known issue with GM. I had mine replaced twice under warranty because of this problem. The last time the dealer told me that they had an "upgraded part number" for them now. He also told me they have seen this same problem with the same Nav system used in Cadillac and other GM models, and that it has been a big problem for GM. I suspect this had a lot to do with the new cars no longer using a DVD for the map data, and instead using physical memory.
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,984
Likes: 16
From: Amityville New York
I just did everything asked and still saying no map data, when I removed the disc its saying install disc, when I install the disc it is probably reading it because the message install disc is cleared but still saying NO MAP DATA, there are no stored destination and no stored home address.
Can it be something pertaining to the disc or the program to read the disc?
Can it be something pertaining to the disc or the program to read the disc?
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,984
Likes: 16
From: Amityville New York
The laser diode head is not accessible in the OEM Nav system, so there is no way to clean it. I've even tried dissembling it, and still could not get to it.
Many of the factory nav units have had problems reading the map DVD, and it is a known issue with GM. I had mine replaced twice under warranty because of this problem. The last time the dealer told me that they had an "upgraded part number" for them now. He also told me they have seen this same problem with the same Nav system used in Cadillac and other GM models, and that it has been a big problem for GM. I suspect this had a lot to do with the new cars no longer using a DVD for the map data, and instead using physical memory.
Many of the factory nav units have had problems reading the map DVD, and it is a known issue with GM. I had mine replaced twice under warranty because of this problem. The last time the dealer told me that they had an "upgraded part number" for them now. He also told me they have seen this same problem with the same Nav system used in Cadillac and other GM models, and that it has been a big problem for GM. I suspect this had a lot to do with the new cars no longer using a DVD for the map data, and instead using physical memory.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Burning Brakes
Joined: Oct 2015
Posts: 1,139
Likes: 108
From: Arlington Texas
You could try compressed air to blow it out. Don't just use a can of air, but an air hose connected to a compressor cranked up to 80 PSI. I also use a CD lens cleaner made by Philips. It's basicially a dummy CD with mini brushes on it to wipe your laser lens clean.
Drifting
Joined: Mar 2010
Posts: 1,901
Likes: 361
From: TX
My gut feeling is that it isn't a problem with the laser head getting dirty at all, but is more likely an issue with the output from it becoming too weak or dim to read a dual layer disc properly. Dual layer discs require a higher output laser to read them.
Melting Slicks
Joined: Feb 2004
Posts: 2,791
Likes: 44
From: Loudon/Lake Mary Tennessee/Florida
I just did everything asked and still saying no map data, when I removed the disc its saying install disc, when I install the disc it is probably reading it because the message install disc is cleared but still saying NO MAP DATA, there are no stored destination and no stored home address.
Can it be something pertaining to the disc or the program to read the disc?
Can it be something pertaining to the disc or the program to read the disc?
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,984
Likes: 16
From: Amityville New York
I am just about doing the same, I paid $500.00 for this unit used, paid $40.00 to clear the code and I just bought another Disc for $150.00 and is not about to put another dollar into this crap, its worst than depositing money into the Hairy Bank with no interest.
Last edited by TRINIC5; Feb 26, 2017 at 04:44 PM.
Race Director
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
Only paying $500 is always a possibility. One thing also is if I'm not mistaken you have to match the nav with the car. I don't think they're all the same.
Last edited by saplumr; Feb 26, 2017 at 05:17 PM.
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
OP , can you borrow a disk .....the disks can go bad and be unreadable
Also , did you install a VSS wire ?
Dave
Race Director
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
I had to replace mine years ago because I thought is was bad only to find out it was some of my home made cd's. I had to give my VIN to the dealer to assure correct radio.
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
Dave
Team Owner
Joined: Sep 2000
Posts: 25,009
Likes: 2,707
From: Far NW 'burbs of Chicago
St. Jude Donor '13
Or possibly if they were going to install the new radio, do they need to input the VIN into the Tech2 to match the radio/car?
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
A lot of dealer parts guys automatically ask for your VIN because it will tell them what options are on the car so they get the correct parts. They can't know all of the options possibilities or running changes made during a model year.
Or possibly if they were going to install the new radio, do they need to input the VIN into the Tech2 to match the radio/car?
Or possibly if they were going to install the new radio, do they need to input the VIN into the Tech2 to match the radio/car?
I think you are correct, dealerships are just accustomed to asking for the Vin
Dave