I am currently installing a Viper 4706V into my 2007 BMW X3 (USA). I am trying to prep and make it ready for installation into my vehicle. The issue I am having is making sure I properly wire the ignition wires correctly.
According to the DirectWire for 2007 BMW X3:
Ignition 1 is a green wire
Ignition 2 is a purple wire
Ignition 3 is a red/black or red/blue wire
Since the Viper 4706V only has two ignition wires:
Ignition 1 - Pink Wire
Ignition 2 - Pink/White Wire
The issue is there is no third ignition wire on the 4706V, I will need to use Ignition 2 on the remote start to trigger two relays to supply voltage to Ignition 2 and 3 on the the car. This I understand and if there is a better way please let me know. My struggle is the note that DirectWire left for second ignition, "This wire needs to be powered before ignition. Use status or ground when running to trigger." This statement confused me so I checked another website and they said for the second ignition, "This wire must power up before Ignition 1, use the (-) Ignition 3 output." Still this did not help me to understand this anymore.
Can someone please explain this to me and share their experience installing into a BMW X3? I appreciate any help and hope this might help someone later too.
Thank You kreg357, I appreciate the help. I was looking at the wiring diagram for the BMW X3 ignition and I was wondering if you could give me your opinion/advice?
Below is the image of the wiring diagram, on top are three voltage sources going down into the ignition switch and then below are the starter and three ignition wires.
I was considering for the fused (+)12V constant input of the remote start flex relay if I should use Pin 7 the red/black wire (top right wire) to power the third ignition wire (Pin 10 - Red/Black). The DirectWire does not reference this wire and never mentions it. I need to supply the Ignition #2 fused 12V input power on the remote start, the only sources DirectWire recommends or lists are Pin 5 (red/blue) and Pin 6 (red/green) wires which are 50 amp circuits. The reason I ask is the third ignition wire on the ignition switch appears to make contact to a 10 amp circuit from Pin 7 (red/black) wire.
This may be excessive and unnecessary since a fuse is used anyways but it keeps the circuits separated and I thought I would ask for other opinions.
Would you power the starter and three ignition wires with the two 50 amp 12 volt sources or use the 10 amp circuit (Pin 7 - red/black) to power the third ignition wire of the vehicle?
From the diagram, the "Third Ignition" looks like a second starter - it's only HOT when the key in the start position.
Thank you both kreg357 and catback.
Kreg357 I have another question for you. I started to wire up the R/S module and noticed the third ignition wire of the X3 only powers the heated steering wheel. Most importantly it can not be triggered to turn on unless I physically hit the button to power it on. The switch only has a power and a ground wire going to it. I see no reason to connect this wire.
So my question to you is can I use the R/S flex relay ignition 2 (pink/white wire) to power the X3 ignition 2 (purple wire) and make the flex relay ignition 2 (pink/white wire) trigger before ignition 1 (pink) of the R/S as required by DirectWire?
Is there a way to wire it this way or do I still need to use an external relay and wire it the way we discussed with the blue/white status wire of the R/S?
I am not aware of any way to change the "turn on" timing for the Pink/White ING2 wire.
Pretty sure Viper has it set up to be exactly the same as Pink IGN1.
Using (-) Status Output or 2nd Status with a relay will provide the early signal needed.
-------------
Soldering is fun!