I am confused. What do you mean by it activating? The factory bluetooth will only work with your factory radio. You shouldn't have that plugged in if you are using a pac unit.

 

The factory bluetooth module is separate from the factory head unit. It functions regardless of the head unit that you install. When I removed the factory head unit, I didn't touch the factory bluetooth module or switches. I have never used them and figured that there was no harm in leaving them in place.

However, when connecting the PAC SWI-PS, the steering wheel "seek up" button automatically re-routes to activate the factory bluetooth. This makes it impossible to program "seek" buttons using the SWI-PS unit.

Next weekend, I will disconnect the factory bluetooth module and see if the issue is resolved.

 

Unless they changed something from my 2008 Lancer I disagree.. I know the module is separate, it is located above your glove box. What I am saying is that the factory head unit is needed to use the bluetooth module. Your head unit receives audio from the bluetooth module and outputs it to the front passenger door speaker. Your steering wheel control wires go to the back of the factory head unit. Wires then go from the head unit to the bluetooth module to tell it what to do. This is how you see phone calls, etc on your factory radio display. Essentially the brains of everything are the factory head unit. The bluetooth module is there to make a bluetooth connection to your cell phone.

Without the factory head unit no signals from the steering wheel go to the bluetooth module. Which is why I am confused by what you are saying. I also am confused because without the factory head unit you should hear and see nothing from the bluetooth module because it is not wired directly to your steering wheel.

The whole reason the bluetooth controls work with the pac unit is because they are sent over the same (single) wire as the audio controls. If they were somehow tied directly to your bluetooth module you would have two control signal wires. This will not work with a pac system and you wouldn't be able to use the bluetooth buttons.

Sooooo since we know they are on the same signal wire, which you are unplugging from the factory radio to splice into. There is no connection ever being made to the bluetooth module

 

Based on your description, you either have a different type of factory bluetooth than andrewp and I, or you are just guessing in regards to the manner in which your unit functions. No offense intended

The bluetooth unit that I have operates totally separate from the head unit. It only uses the head unit for two functions: 1) to provide sound (any head unit will do as long as it's plugged into the factory wire harness) and 2) to display the caller (obviously, the factory head unit is needed for this function).

The head unit does not provide an signals to the bluetooth module. This is why there are no buttons on the head unit that are used to control the bluetooth module.

Although there is only one control wire at the connector end of the harness, this wire splits downstream. It feeds into the head unit AND the bluetooth module. The bluetooth module only reacts to certain signals. The head unit only reacts to certain signals. Thus, they can be connected to the same wire. This is also why you have to program the SWI-PS unit. Programing the unit tells it what signal to send downstream.

Hope this clears up the confusion!

 

No other head unit but the factory one will do this. The wire harness has output wires for each speaker, power, ground, illumination, etc. The bluetooth module does not just send audio over a wire and magically output to the right speaker. The audio needs to go through an amplification process done by the FACTORY HEAD UNIT.

Obviously the head unit has control of the bluetooth module or how else can you turn down the volume with the knob on the factory head unit?? This is because the audio is being amplified by the FACTORY head unit which has full control of how loud it is.

You do realize the signal going across this wire is a voltage/current level correct? Certain buttons will change the voltage/current to a certain level. This is why you program the pac unit to send certain button presses at certain level changes from the signal line. This is also why you have to have the car running while programming to make sure you have good levels.

Now on to the original question at hand... how are you saying this bluetooth module is being activated without the factory head unit because as I said before this is the operation of the 2008 Lancer, and I don't think they changed anything in the newer models, but am positive about 08. I am in fact the original poster of this topic so I think I should know a little.

 

OK, I’ll post one more response to this thread before moving on, LOL!


The factory head unit uses the same wire harness as the aftermarket head unit. That’s how the audio signal from the bluetooth module is sent to whatever head unit is connected.

This statement alone makes it evident that you do not fully understand the process. The head unit just manipulates the audio signal. It does not tell the bluetooth module to turn up/down the volume, LOL.

The PAC unit provides resistance when the buttons are pressed. Your car does not have to be running while programming the unit. You just have to turn your ignition to the "accessory" or "on" position so that the unit receives power. I'm not sure what you mean when you say that your car has to be running to make sure that you have good levels. That's a new one to me.

Like I said before, either you have a different type of factory bluetooth than andrewp and I, or you are just guessing in regards to the manner in which your unit functions. The fact that I have an aftermarket head unit and can still use my factory bluetooth proves this. Also, just because you are the original poster of this thread doesn’t mean that you are an authority on the subject!

 

This is hilarious... have you ever installed an after market radio before? Let me know which wire is the input to the head unit from the bluetooth module. The bluetooth has a separate harness that plugs into the factory head unit, as a matter of fact pictures are shown earlier in the thread. Or wait do you think a wire is tied directly to the output of a speaker.. lmao


Wait come again. Lets refer to above where you think that the bluetooth module actually is sending output to the radio wire harness and an aftermarket head unit is some how inputting the audio and outputting it to your speakers. There are so many things wrong with this its comical.


Of course that's a new one to you because you have no clue what you are talking about. As a senior in electrical and computer engineering from the good ol University of Virginia Tech I feel that I can shed a little light on how oh lets says electronics work... Most likely the buttons are set up with pull up resistors. The button or what we will call a switch is connected to ground and a high voltage from the pull up resistor. When pressed the circuit closes to the ground side of the switch which changes the voltage/current going down the signal wire. This will be slightly different for each button allowing the pac unit to tell which button is pressed. You have the car running to simulate real driving voltages and currents. If you don't you are bound for miss read button presses like you pressing it and the pac unit not detecting it.


Finally you semi answered the question I asked days ago. I will leave it at this. You probably both tapped into a wrong wire on the wrong harness. My guess is that if you are having a weird issue with your bluetooth you tapped into the bluetooth harness. Considering you and that other guy are the only ones that have had an issue with the pac instructions, I am willing to bet that's the case.

 

Okay so Iggman and I are still in the same boat....my seek up still activates the bluetooth. I dont know why, i called PAC support and even they dont know...

So anyone disputing this, stop...the problem exists...now dont post regardless if ur some senior blah blah blah tech unless you have a solution.

I did the aftermarket install myself, did it all to spec and everything works except the actual bluetooth...

Anyways...lets find a solution

 

And looking at Lancerion's pic I just noticed the blue wire that he clipped right beside the 22)

Is that supposed to be clipped?

And I also discovered i come into my car and sometimes my head unit is muted....

I actually press the seek up to unmute the unit...and on the wire harness from the unit i didnt connect the mute button because it was an issue.

Iggman you ever have the same problem?

 

OK, I figured out the solution to my problem so I thought that I'd post another response in case this helps someone. As I suspected, disconnecting the harness to the factory bluetooth module has completely eliminated any issues that I had been experiencing. I can now program all steering wheel buttons and everything is working great!!!

If I had to guess (yes this is just a guess) as to why some of us are experiencing issues and others are not. Perhaps this issue only occurs with certain revisions of the PAC unit. As noted in the table listed at the link below, revisions 1.6.7 and 1.6.8 added some additional programming options (FYI my unit is revision 1.6.8, the most recent revision).

http://pac-audio.com/swixprogramming...ehicles&ID=243

I hope this helps someone

P.S. andrewp, PM me if you have any specific questions. I probably won't be monitoring this thread. Be careful though, although I am not an engineering student, I am an engineer!

 

we need a solution:

i am using a mito-02 and a swi-jack ... I too get the "seek up" issue. "hands free" operates just fine but again it is activated by "seek up" now.
I have removed the Bluetooth module temporarily, which as noted by other members allows the stereo control buttons to be properly programed.
However this is unacceptable, as the hands free system still works great "when plugged in" the buttons are just messed up. i wish to keep the factory hands-free system and the hands free buttons on the steering wheel. it would seem this is a simple issue!

help please!

 

how do you remove the factory blue tooth??? I have the same issue with the seek up button.

 

you just need to unplug the module. IIRC it is sitting in behind the glove box.