dimaj: What you are describing sounds like the temporary bypass the "FINALLY THE MOMENT WEVE BEEN WAITING FOR... THE Z2 BYPASS" thread speaks to: http://avic411.com/forum/viewtopic.php?t=6357

If I understand the essence of that temporary solution, it forces the unit into Basic Hybrid mode which circumvents the disable mechanisms. Eventually the unit should reset its way back to 3D Hybrid which will again disable the menu / DVD options.

From my perspective, that's not something I would consider a solution since I specifically got this unit for what I understood to be improved GPS accuracy available through the "3D Hybrid" positioning (dead reckoning). If your unit stays in the Basic Hybrid mode, in theory you should remain bypassed. The curiosity.

Odds are, tinkering around you found a way to set it to bypassed mode if it does not revert back on it's own. I do know from reading svc manual it keeps a history of errors - you might want to go into that area through menus and list out the errors in there.

If you could post the error history for your Z2 it might help see what's happening. It's altogether possible as well that your multitude of resets put the unit into a "downgraded" mode to bypass a real issue. I would expect the unit to do things like that.

How would I change i to 3D Hybrid?

I did have some errors there, I will note them down and post them later on today or tomorrow.

dimaj

It changes to 3d Hybrid after the learning period...

I know it's a bit off the subject, but how long does that usually take?

I know it's a bit off the subject, but how long does that usually take?

I have seen as little as 15 miles and as long as 100. But it's whenever it sees enough sat and Vss info to make an informed decision to think it's synchronized.

This might be overly simple, i'm sure someone has already thought of this, but i don't remember reading if anyone has tried disconnecting the VSS wire. i.e. how else would the unit know if the vehicle was moving or not?

My ML55 didn't have a VSS wire until I installed a Canbus Adapter for my Z1. Prior to that Navigaion worked ok unless i was in a tunnel or simular situation... basically, i couldn't really tell much functional difference. Will the Z2 function at all w/o a VSS signal?

Just A thought...

This might be overly simple, i'm sure someone has already thought of this, but i don't remember reading if anyone has tried disconnecting the VSS wire. i.e. how else would the unit know if the vehicle was moving or not?

 

My ML55 didn't have a VSS wire until I installed a Canbus Adapter for my Z1. Prior to that Navigaion worked ok unless i was in a tunnel or simular situation... basically, i couldn't really tell much functional difference. Will the Z2 function at all w/o a VSS signal?

 

Just A thought...

uhhh..... It knows you are moving because its a gps unit? It gets information about your whereabouts from the gps satellites. Yes the Z2 will still work as always without connection the VSS. The VSS only helps when you have no gps signal and it will update faster by like 1 sec.

On a side note, good to see there are still coochos on this board.

Grats coocho on your 666th post!

On a side note, good to see there are still coochos on this board.

Coocho, What are you saying?

the z2 bypass is just the bottom right open plug on the white harness grounded out, this works for me.

is'nt that the z1 bypass?

ahh silly coochos and their silly suggestions.

ahh silly coochos and their silly suggestions.

Ahh Smartass "Coocho" and his smartass comments

any updates?

any updates?

Yup no bypass yet.

I'm sure this has been covered, but I couldn't find anything re: Z2... only Z1

What's the deal with the guy selling "AVIC-Z2 Bypass" for $2.99 on Ebay?

Has anyone paid for this?

I assume it doesn't work or people would be talking a lot more abou tit on here...

waiting for the eBay confirmation then I'll buy it to see what he's got, but I'm sure it's BS.

if i remember correctly theres a few post about them. i believe they are just gps antenna switches. after your unit goes through initialization (100 miles or so) it becomes inactive.

Just bought a service manual for AVIC-Z2

it is currently on my ftp server and here's the address:

ftp://dimaj.net

username: avic411

password: avic411

 

hope this helps

 

btw... donations are welcomed (j/k)

I can't log into your server, I keep getting incorrect password and stuffs . Did you take the site down for bandwidth issues?

try it now

dimaj

try it now

 

dimaj

I tried logging on and no go. Is it still up?

I was having some intermittent network issues at home. it is hopefully fixed now...

dimaj

Sweet, got it thank you oh so much .

posted to my ftp as well

Search is your friend

Thanks for shaing

has anyone thought about this...

Given we now have schematics for the Z1 per se AND we know that flashing the lights on the Z1 at power-up enables overrides,

We need to find the Z1 bootstrap code that looks at the lights (for bypass), then look "above and below" said code to find the calling code and what flag gets set etc.... THEN look at the Z2 code for the "above" code (it's likely that this hasn't changed because the bootstrap code is likely to basically stay the same)... maybe then, we migh be able to find the offending code easier and make a relevant patch

just my pennies worth

has anyone thought about this...

 

Given we now have schematics for the Z1 per se AND we know that flashing the lights on the Z1 at power-up enables overrides,

 

We need to find the Z1 bootstrap code that looks at the lights (for bypass), then look "above and below" said code to find the calling code and what flag gets set etc.... THEN look at the Z2 code for the "above" code (it's likely that this hasn't changed because the bootstrap code is likely to basically stay the same)... maybe then, we migh be able to find the offending code easier and make a relevant patch

 

just my pennies worth

I see you haven't been keeping up with the thread