901SoundsofMemphis

hey , our installer and i just finished installing avic-120bt in a honda crv. units looks great. when it comes to the bluetooth mode, its operational . phonebook , call history is syncing up. but for some reason, incoming calls to the head unit doing ring threw the speakers. and when i pick up the call the other person on the other end of the phone hear me clearly, but i cant hear them at all. and when i dial a number from the head unit i cant hear anything from my speakers. I made sure my volume controls we set to max , i pretty sure that has nothing to do with it. im not using no amps, everything is off of my factory speakers. MY UNIT HAS A STICKER ON IT THAT SAID AUG 2010 , IF THAT HELPS. ANY IDEAS ? INFO@901SOUNDS.NET

u think if ground all empty pins at same time unit will work?

we drove on the express way playing with the resistors. parking brake wire gives u 4.88 volts before grounging it. and one the empty pins gives u 4.88 volts aswell. we tried diffrent ways but was out of luck.... we'll keep tring difrent resistors

Thanks for taking some of the heat off me! Everyone was expecting me to buy one and figure it out.

 

Oh and here is the engineer in me coming out.

 

If you guys are going to try resistors, put a volt meter across the resistor when you do it. You obviously need to connect to the pin that has 5V on it. When you put a resistor across that and ground measure the voltage across the resistor. Anything meaningfully would be in the 2.5V range, I would assume.

 

There is a pull up resistor to bring that point to 5V. If you short it to ground, it would be 0V. But if you need a resistor then that means that the pin is looking for a "somewhere in the middle" voltage. The problem is we don't know what that pull up resistor is. If you stick a 1ohm or short to ground we know that doesn't work. If you stick a high resistance across it and it's too close to 5V then that won't be different enough to make a difference. When you get a resister so the voltage is 2.5V then you know how big the resistor is pulling that pin to 5V it's the same size. Technically that point could be looking for a small range of voltages between 2.3 and 2.7 or whatever.... it could be looking for 4.2 through 4.5V. I don't know what pioneer is doing. But if you measure the voltage across the resistor and it's close to 0v or 5v I would assume you are way off and try a different value.

normally it wouldn't make a diffrence. we could try it...

^^ What about if you disconnect the VSS wire then? That would disable the 3d hybrid right?

we measured them. we got a 4.88 volt in one empty pin. the brake wire was also the same voltages.

i tried disconnected the vss. it is not the vss that is the problem. it is detecting through the gps antenna ( at least thats what i have come up with so far). going to be doing another 1 soon so i have some more things to try. will let you know asap.

 

Disconnecting things that input motion are not the answer. Because the Z1 has internal gyros and can sense motion even with everything external unplugged. I would assume the Z2 is going to do the same thing.

 

The Z1 bypass is http://www.sminntech.com/z1flash.html#newbypass and I'll be willing to bet the Z2 is close. I would focus on the extra holes in connector 2 and measure voltages and work with a resistor for different voltages across the secret hole in connector 2. I would not worry about a resistor on the parking brake sense wire, I would focus on the connector 2 holes.

 

Just what I would do.

it cuts off after ur driving over 10 miles or faster..............

All I did was ground the parking brake wire and the dvd player worked fine while driving.

You're maybe right. we only had them for a week. we still need more time if there is a easier way.

We didn't need 3 posted in all 3 forums with the same thing. I took the liberty of deleting the duplicates and left this one with the conversation.

 

And I agree with tillithz, this is pretty bad.

 

And they had things like this with the Z1. These switch based bypasses which "disconnect the GPS" don't work well or for very long. Eventually the Z1 would calibrate itself and if the vehicle was a rough riding SUV, the internal gyro's would sense movement.

 

For the first 30 - 100 miles of the Z1's life the internal gyro's would not contribute to the overall movement of the vehicle. So the Z1 took the movement info from the GPS antenna.

 

When you keep flipping that switch I think it resets the calibration of the internal gyros. The Z1 would feel the motion and watch the antenna and try to correlate the 2. People who kept flipping the switch a lot would be fine for a while. Then would go on a trip and leave the antenna connected and it would no longer work. Over the last year with www.sminntech.com I got sooooo many emails from people who's installers did stuff like this on their Z1's and then months later were bugging me to help them get it right.

 

I know all this is Z1 info and the Z2 is different, but it seems like they changed how the bypass is done... maybe making it harder to bypass. I would be surprised if they made this method of getting around the bypass easier to do (make this "hack" work on the Z2 but not on the Z1).

 

The biggest problem with something like this is people who might have been trying things might stop trying if there seems like there is something that might work.

 

901SoundsofMemphis, I do appreciate you sharing what you found. We all do. But this is not the solution. Look back at pretty much all the Avic's and there was something "simple" which needed to be found which just made it work all the time with no switches. Did you try resistors and measuring voltages like I talked about in my other post? Changing voltages and resistances?

what a forum.....you guys figure out solutions to a problem in no time.

 

Jason, why don't you post a need to figure out the Israel/Arab situation.... this forum could probably prevent WWIII

If u guys have other way to bypass the unit then post it. This is a temp bypass till we find an easier way.

great Idea on the Cam. Looks clean.

Really simple. Keep the Parking brake wire grounded all the time. Put a switch on the GPS Ant, How? Tools u need, sawder gun, sawder and splitters. use a switch on GPS Ant. Its a coaxl Ant(Power on the inside and Ground is the outside sheeld) Put switch on the power sheeld wire. its in the center of the wire. It works.When doing so, try not to break the out side sheeld of the wire(make sure the outside layer of the coaxl ant isnt disturbed).Try it When installing unit plug up GPS Ant to unit inorder for it the update location, then unplug Ant and drive. The Only Disadvantage about Bypass must Connect GPS Ant back when u need Navigation.Unit doesn't take long to figure out were your at. 3 seconds the most. IF THERE IS A DIFFRENT WAY OF BYPASSING UNIT PLEASE LET US KNOW........................... OUR WAY WORKS. MOE AND GREG GOT THIS ONE...

roomer has it we need a resistor to bypass unit. as soon as we figure it out we will post it........

if u cant fing it u need to buy a speed pulse genarator ... alpine has one ... we ran in to the same problem...

they are diffrent. we ordered 5 and still working on bypassing them

he tried bypassing it several times, Flashing it, grounding it even sending power in some of the empty pins. Took off all stickers on unit thinking there was a switch or jumper. Roomer has it that we need to use resistors in one of the empty pins and feed it power. The AVIC-Z1 and Z2 are'nt the same...... if any one figure out how to by pass it let us know....