Z2 "good enough for now" Bypass

[InstallerFL2AL]

I have had my Z2 that I received as a replacement for a defective Z1 for 4 days and I have been watching video for 3 and a half. I used a trick that I figured out when the Z1's first came out before the bypass was available. I am not offering this as a perfect solution for the bypass problem, just as a temporary fix for watching video without an image reversed message until a real bypass is figured out. So, please don't stop working on one guys!

I recommend that only installers with some experience perform this work since some of it might be confusing to some. Once this work is performed, you will be able to watch video and use all of the nav control functions while moving when the switch is activated but, you will have to turn the switch back off to use the Nav because it will not be able to keep up with your location while bypassed. Once the switch is turned back off it should only take a moment for the Nav to figure out where you are.

First, the parking brake wire should be grounded. You will also need the Speed Sense(VSS) to be hooked up. This wire should be connected because when turning the bypass back off it will cut the time it takes to find your location in half. You also need this wire because the gyro will still block the video if you hit a strong bump at high speeds(this only happened once and I was trying to make it happen) and that wire will be needed to reset the bypass without stopping. You will need two relays and a toggle switch. The relays can be taped together and wired to work the same way using the toggle switch to provide a ground to activate both of them. The power to activate them should be from a key power wire. The first relay will be used to separate the VSS wire. The second relay will be used to separated the ground shielding (the outer layer) inside of the cable for the nav antenna. When this is done properly, the nav will no longer know the vehicle is moving once the switch is flipped. The gyro can shut down the video if the vehicle hits a severe pothole but, this happens very rarely and all you have to do to correct this is flip the switch off and then back on. This shows the nav a speed signal for a second to fool it into thinking you have stopped again.

These mods should be easy for most installers. It is very important that the center of the antenna wire not be cut or damaged! I will include some picture links to show how I did this stuff. If the end user uses video more than Nav (like me), I recommend the relays be wired as normally open. For those who use the Nav more, they should be wired as normally closed. This will prevent the relays from being constantly active. Don't forget to use key power to power the relays so that they will only work when the car is running to avoid battery problems.

Again, this is only a temporary fix and not a real bypass. I hope that all of you will keep working on a true bypass. Going from my Z1 that had a real bypass to this is a real disappointment.

 

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[coocho]

wasnt this the exact same bypass that was offered on ebay? I think everyone here knows of it, but doesnt want to do it.

[InstallerFL2AL]

I don't know what was offered on Ebay. I never looked at it. This is what I figured out while tinkering. All I can say to that is that this works and it it a good solution until someone figures out a real bypass. If you don't want to use it, that is up to you. I will be watching video while you wait for something better I guess. Unlike Ebay, this is free info offered to give people an option. The only reason that you might not want to do this is because you have to cut into the antenna wire. if you do it properly, it should not be a problem. All you have to do is reconnect the wires if you don't want to use this bypass anymore.

By the way, I did not mean "battery problems" I meant to keep the relays from heating up. You can avoid using relays all together if you get a double throw toggle switch to separate both wires at once.

[InstallerFL2AL]

Almost a week now......... still working. Gyro not a problem, video hasn't shut off once. I have been watching video constantly and I drive quite a bit daily.