AVIC D2 bypass (Page 2) — AVIC411 Forum Archive

Posted Jul 24, 2006 · 07:08 UTC#26

No, just ground

mecpinstall said:
do u have to put a switch on the ebrake wire n spare wire..im confused with the spare wire...get back

Posted Jul 25, 2006 · 01:29 UTC#27

this might be a dumb question but im doing a D2 install in a scion TC for my buddy, but do you have to hook up the reverse input wire? if so where would i hook that up? thanks!

Posted Oct 16, 2006 · 16:56 UTC#28

Again, thanks for the great info on this forum. Unfortunately, my install guy refuses to do this mod for me. However, he says he can leave this so it's easier to do the mod - whatever that means. I presume it will be easier to ground these two wires near the headunit vs. somewhere else?

Also, he mentioned that I need a relay to make it work with my D2... I know most of you guys made it work without a relay/switch.

Thanks

Posted Oct 16, 2006 · 17:40 UTC#29

You don't need a relay

sbkim said:
Again, thanks for the great info on this forum. Unfortunately, my install guy refuses to do this mod for me. However, he says he can leave this so it's easier to do the mod - whatever that means. I presume it will be easier to ground these two wires near the headunit vs. somewhere else?

Also, he mentioned that I need a relay to make it work with my D2... I know most of you guys made it work without a relay/switch.

Thanks

Posted Dec 06, 2006 · 18:28 UTC#30

cntrylvr79 said:

havenet said:
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.

You have described EXACTLY what happens with my D2... I have a 07 Scion tC.. .and i have done the bypass is it is most commonly done... ground and adding the pin in the open slot, we just did it last night, and it worked like a champ... but this morning, the D2 would give me the error and would reboot over and over...

Does anyone have any more information on this "Pulse Timer"? where can i get it?

Posted Dec 07, 2006 · 00:26 UTC#31

Any decent car stero shop will have a 528t pulse timer. Otherwise just google it should get quite a few results.

Posted Feb 28, 2007 · 21:58 UTC#32

Ok, My D3 is coming tomorrow and i'm assuming the bypass will be similar as the D2. Now, in my N1, my parking brake wire is connected noramlly, but i click the parking brake the first click and that makes the system think the brake is engaged. So my question is can i leave it like that, then put a wire in the unused slot of the harness, then connect that to the parking break wire so when I do the click, both are therefore grounded? If not, can i just tie that wire to the ground wire already in the harness? Thanks in advance.

Posted Mar 09, 2007 · 14:01 UTC#33

I've had the D2 for like two weeks and i tried the bypass and as soon as i start driving it gives me a warning. i connected the empty slot and the parking brake lead to a ground and still as soon as i start driving warning and i lose the functions. i even tried adding a switch so i could turn the brake lead ground on after it booted up and still no luck???????????? is there anything i should do to check it? can i buy one of those bypass PAC modules online? somebody help me out i'm going crazy with this thing

Posted Mar 09, 2007 · 14:10 UTC#34

X804X said:
I've had the D2 for like two weeks and i tried the bypass and as soon as i start driving it gives me a warning. i connected the empty slot and the parking brake lead to a ground and still as soon as i start driving warning and i lose the functions. i even tried adding a switch so i could turn the brake lead ground on after it booted up and still no luck???????????? is there anything i should do to check it? can i buy one of those bypass PAC modules online? somebody help me out i'm going crazy with this thing

make sure the spare wire you moved in the harness is making metal contact with the pin in the d2.. i have my d2 bypassed in my 07 tC and its been working like a champ since install

Posted Jan 18, 2008 · 05:30 UTC#35

if i bought the 528t pulse timer would that work for hooking up my avh-p4900????

Posted Jan 19, 2008 · 05:38 UTC#36

yep

Posted Jan 20, 2008 · 03:34 UTC#37

are you sure? b/c the 528t would send a power signal and a ground signal and doesnt the avh-p4900 look for off on off?

Posted Jan 20, 2008 · 09:14 UTC#38

Yes

Posted Jan 21, 2008 · 05:57 UTC#39

lol so your sure the 528t works 100% ????

Posted Jan 22, 2008 · 02:39 UTC#40

aarono said:
lol so your sure the 528t works 100% ????

no

Posted Jan 22, 2008 · 02:57 UTC#41

:lol: Ask again. Maybe he will be sure this time

Posted Apr 09, 2008 · 15:18 UTC#42

I am putting a D2 into a 2007 ford explorer and when i ground the wire i get a loud hun threw the speakers, anyone know what could be wrong?

Posted Apr 17, 2008 · 16:59 UTC#43

Did the D2 mod, THANKS TO AVIC411!!!

I was lurking and reading on this site for a couple days, waiting for my D2 to arrive, (2002 CR-V) and didn't know how complicated the engineers were going to make the mod. The green wire for the parking brake is extra long, made that super easy to splice into the ground. And I used the reverse sensor to fit into the open pin slot, super easy. Grounded that right next to the green wire. Added the XM GEX***, super easy, loving it!

Thanks again for the hack, I can't imagine having to stop and engage a parking brake to change routes... Good thing it seems that they made it VERY convienient to bypass their lawyer-repellant.