Notices
Scion tC 1G ICE & Interior In-car entertainment and electronics...

Need Help Bypassing a D2.... How did you do it? Step by Step

Thread Tools
 
Search this Thread
 
Old 12-04-2006 | 09:44 AM
  #1  
fflores's Avatar
Thread Starter
Senior Member
5 Year Member
SL Member
 
Joined: Aug 2006
Posts: 198
From: Chicago
Default Need Help Bypassing a D2.... How did you do it? Step by Step

Ok... i've run into a problem...

I guess the bypass i did was and wasn't correct.

I notice there are a lot of quirks with the wiring of tC... like you can't open the sun roof if you don't have the "ac/heat controls panel" connected at the harness... you don't get readings for the "vehical dignosis" if you don't have the cig lighter connected to the harness, so that option doesn't show up thru the D2.

Right now, when i start up the car... the system boots up... and i get a error that says i have to turn off and turn on again... the system cycles... and the radio turns on... its like the system sees the bypass, and knows i'm tring to bypass it... it will cycle a few times and then remain with a black screen.

Other times the system boots up... and right away goes to a screen that says something about it being unlawful to use the navi system when the car brake isn't pulled... and at the bottom of the screen it has a "OK", i press ok, and the navi system works perfectly. I have all options available while stopped or while driving.

We added the extra black wire to the harness as was suggested in one of the DIY pics. I grounded the brake wire which is purple i believe.

What am i missing? or is there a better way of doing it? I did see someone put in a switch which i guess would run between the grounded brake line and to switch to a open loop and then go back to a close loop by fliping the switch, does that work better?

I still also have to fix up the edging around the unit. seems like the face plate that they provided doesn't allow for the door to open on the stock panel... i have to trim it a little i think.

Its been just so cold here that its not fun to be out side working on it... but i'll probably have to go to a friends house that has a heated garage

Thanks in advance for the help
Old 12-04-2006 | 10:33 AM
  #2  
SquallLHeart's Avatar
Senior Member

10 Year Member

5 Year Member

SoCal tC Club
SL Member
Team N.V.S.
Scinergy
Scion Evolution
 
Joined: Oct 2004
Posts: 15,699
Default

recommend going to http://www.avic411.com/
Old 12-05-2006 | 12:36 AM
  #3  
tweetertc's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
Scion Evolution
 
Joined: Feb 2006
Posts: 566
From: Chicago, IL
Default

well... first off... make sure you didnt ground the purple... cause that should be the reverse... the ebrake is a light green... now with the extra pin in the D2... did you use the same gauage as the constant (yellow) and ground (black)... because if you use a smaller gauged wire like an extra speaker wire or something... there is a chance it wont work...

i ahev done plenty of these at my shop and havent had a prob... if you want some local help i am in joliet ... i have fairlady514 coming out tomorrow so that i can help him... i am more than happy to help you ...
Old 12-05-2006 | 02:18 AM
  #4  
fflores's Avatar
Thread Starter
Senior Member
5 Year Member
SL Member
 
Joined: Aug 2006
Posts: 198
From: Chicago
Default

Originally Posted by tweetertc
well... first off... make sure you didnt ground the purple... cause that should be the reverse... the ebrake is a light green... now with the extra pin in the D2... did you use the same gauage as the constant (yellow) and ground (black)... because if you use a smaller gauged wire like an extra speaker wire or something... there is a chance it wont work...

i ahev done plenty of these at my shop and havent had a prob... if you want some local help i am in joliet ... i have fairlady514 coming out tomorrow so that i can help him... i am more than happy to help you ...
Actually i was wrong in the wire color... i did ground the light green... after looking at the pic of the harness i know we followed it... I am pretty sure it probably is the extra wire in the harness, we didn't have a pin to put it in the harness so its just in there.

If you can help me out, i would appreciate it... I also want to learn how to do it as a friend of mine has a D1 which i would like to bypass for her.

I'll PM you my number, and we can talk tomorrow
Old 12-05-2006 | 03:43 PM
  #5  
iowagary's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
 
Joined: Jun 2004
Posts: 1,323
From: Seattle, WA
Default

1. Ground the ebrake wire to the ground (or anywhere else).
2. Pull the pin/wire for the power antenna (the one that would raise the antenna if our car had an antenna that did that) and push that pin back into the empty spot on the other side of the harness.
3. Ground that wire as well.

As for the trim piece, if you shave off the top and bottom - just a few mm on both, it will fit. It is doable - I did it to mine. You don't have to shave so much that you break it, but you do have to lose a good bit from both top and bottom.
Old 12-05-2006 | 05:39 PM
  #6  
fflores's Avatar
Thread Starter
Senior Member
5 Year Member
SL Member
 
Joined: Aug 2006
Posts: 198
From: Chicago
Default

Originally Posted by iowagary
1. Ground the ebrake wire to the ground (or anywhere else).
2. Pull the pin/wire for the power antenna (the one that would raise the antenna if our car had an antenna that did that) and push that pin back into the empty spot on the other side of the harness.
3. Ground that wire as well.

As for the trim piece, if you shave off the top and bottom - just a few mm on both, it will fit. It is doable - I did it to mine. You don't have to shave so much that you break it, but you do have to lose a good bit from both top and bottom.
Thanks for the info on the trim piece.. i wasn't sure if it was the top and bottom that needed the trip, i though it was just the top so that the door could slide past it... i work at a place that has a machine shop in the back.. i'm sure i can have someone do it a lot more cleanly then i would with a dremel
Old 12-05-2006 | 06:29 PM
  #7  
iowagary's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
 
Joined: Jun 2004
Posts: 1,323
From: Seattle, WA
Default

Totally - I dremel'd mine and it isn't that clean, but honestly, since it's black and sits in the dark, it's pretty easy to not notice. If you can make a clean line top and bottom, it will look really nice.
Old 12-06-2006 | 03:18 AM
  #8  
fflores's Avatar
Thread Starter
Senior Member
5 Year Member
SL Member
 
Joined: Aug 2006
Posts: 198
From: Chicago
Default

TweetertC = FTW!

Thanks dood... it works like a charm!
Old 12-06-2006 | 06:13 PM
  #9  
fflores's Avatar
Thread Starter
Senior Member
5 Year Member
SL Member
 
Joined: Aug 2006
Posts: 198
From: Chicago
Default

arg.. spoke too soon....

This morning it didn't want to allow me to use the Navi side of the unit... just kept rebooting....

last night it was working perfectly, i even stopped off a few times, turned the car off, waited and then turned the car back on. Every time it would boot up, when i hit the "map" button, the "Destination" or "Info" button, I would get the prompt screen for the disclaimer, and hit ok and it would work beautifully.

I believe that the bypass has been done the way it should be done. The only thing i can think of is that either the 07's are wired up differently, or maybe, just maybe, the D2 has to a "working" temp... I've noticed that it gives me the most issues when its still cold in the car. Every time i have gotten it to work, the car has already been warmed up, but that makes almost no sense.

My only option is to wire it up as the proper install, and see if that works. And the only that i believe is left to try to bypass the system is to add a switch to the parking brake loop. So that the unit works properly and then i flip a switch to ground while i'm still driving so that the car believes that i've pulled the e-brake. Even then i'm not sure if that would work

This is frustrating
Old 12-06-2006 | 06:24 PM
  #10  
BOXMAN's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
 
Joined: Aug 2004
Posts: 1,605
From: Colorado
Default

Check your grounds and If you didnt get the pin to set nice and tight you can have a problem like you describe. Its not a cold temps thing. I have a d2 in my 05 tc and it was -26 last week. I had not one issue since day one.
Old 12-06-2006 | 06:29 PM
  #11  
iowagary's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
 
Joined: Jun 2004
Posts: 1,323
From: Seattle, WA
Default

Yeah - not a temp thing - if I had to guess, as frustrating as it may be, I'd guess it was a loose connection, pin, or ground. Get back in there again. How are you connecting everything? Try soldering and taping or something. As for the extra pin, just make sure it's pushed in really well.
Old 12-06-2006 | 06:29 PM
  #12  
fflores's Avatar
Thread Starter
Senior Member
5 Year Member
SL Member
 
Joined: Aug 2006
Posts: 198
From: Chicago
Default

I read this over on AVIC411.com.. has anyone used this for as a solution to the bypass?

Originally Posted by cntrylvr79
Originally Posted by havenet
Would you please describe the installation of the 528t pulse timer (connections, etc)? That sounds like exactly what I need!

Since you suggest it requires a pulse timer, I assume that a straight grounding of the parking brake will not work? Have you confirmed that it will only work it the ground occurs AFTER boot of the system?

THANKS!!!!!!
Yes, I initially just grounded the parking brake wire and occasionally I'd either get the error message or the video/navi would not show up. So here's how to wire up the 528t.
Red goes to Constant 12v.
Black goes to ground
the blue loop of wire cut and isolate the ends.
Black/white goes to the accessory wire
Yellow goes to ground
orange goes to the parking brake wire of the avic.

What will happen is when you go to start the car, the accessory wire will get power for a second and then lose power when the start goes to crank. That will cause the 528t to activate for the amount of time that the dial is set to. once it deactivates it will reconnect the yellow and orange wires, grounding the parking brake wire and allowing you use the full navi and video display. Mine has been wired like this for almost a year now and not once have I had a problem since I put the 528t in.
Old 12-06-2006 | 09:13 PM
  #13  
BOXMAN's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
 
Joined: Aug 2004
Posts: 1,605
From: Colorado
Default

NO! Double check you wires and keep checking untill it works. The first method works 95% of the time the other 5% is install error
Old 12-06-2006 | 10:11 PM
  #14  
tweetertc's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
Scion Evolution
 
Joined: Feb 2006
Posts: 566
From: Chicago, IL
Default

hmmm... no luck fflores... damn... i will see if i can snag a harness out of a new box for you and get it to ya... i was 100% it was all good... damn....
Old 12-07-2006 | 01:13 AM
  #15  
fflores's Avatar
Thread Starter
Senior Member
5 Year Member
SL Member
 
Joined: Aug 2006
Posts: 198
From: Chicago
Default

I know, its weird... it was working perfect after i reset the unit by pressing the little pin hole button, though it took a while to realize that i wasn't in NYC... and like i said, i even drove for a while... stopped off at a gas station, mostly to set my channels, but also to try to trip the error, and nothing. So i thought it was all good... and then this morning bam, error! right in the face!

I am still at work so i haven't had time to even look at it today... my though right now is to instead of grounding thru the harness, i'll try maybe to ground thru the chasis. But i highly doubt that will change things.

Ryan, if i have to make another trip out to ya, thats no problem
Old 12-07-2006 | 02:19 AM
  #16  
tweetertc's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
Scion Evolution
 
Joined: Feb 2006
Posts: 566
From: Chicago, IL
Default

alright cool bro... i will see what i can do at work tomorrow and let you know...
Old 12-08-2006 | 02:36 AM
  #17  
Golden86's Avatar
Senior Member
5 Year Member
SL Member
 
Joined: Jul 2006
Posts: 232
From: Elmhurst IL
Default

I just installed my D2 in my 07 TC, and everything works great, not a single problem with bypassing it. The wiring is wrong on your setup, if it was correct, it would work, theres no doubt about that.

I have all my grounds at the harness. Just make sure you solder everything, and that you have the correct size pin in that harness to bypass it. You will need another pioneer harness with the larger gauge wire in it. The smaller gauge wire might work, but you risk having a loose connection, which I think you may have.
Old 12-08-2006 | 05:11 AM
  #18  
fflores's Avatar
Thread Starter
Senior Member
5 Year Member
SL Member
 
Joined: Aug 2006
Posts: 198
From: Chicago
Default

Originally Posted by Golden86
I just installed my D2 in my 07 TC, and everything works great, not a single problem with bypassing it. The wiring is wrong on your setup, if it was correct, it would work, theres no doubt about that.

I have all my grounds at the harness. Just make sure you solder everything, and that you have the correct size pin in that harness to bypass it. You will need another pioneer harness with the larger gauge wire in it. The smaller gauge wire might work, but you risk having a loose connection, which I think you may have.
I hate not having any time to looks at this... hopefully this weekend or tomorrow... i've worked from 9am-9pm the last few days
Old 11-15-2007 | 07:51 PM
  #19  
davedavetC's Avatar
Senior Member
10 Year Member
5 Year Member
SL Member
Premium Member
iTrader: (4)
 
Joined: May 2005
Posts: 20,410
Default

http://www.avic411.com/forum/viewtop...ght=bypass+diy

does that work for a D2?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BlingSlade
Scion iA Discussion Lounge
6
10-19-2016 01:39 AM
crimson_sinn
Introduction Forum
1
09-25-2015 10:41 PM
Klashan
Scion tC 1G Owners Lounge
7
09-24-2015 01:39 PM
StxArOne
Scion xA Aero & Exterior
1
08-21-2015 07:44 PM




All times are GMT. The time now is 09:24 PM.