viper 5902, 2007 tahoe

On my Viper 5902, I was working to set the responsiveness of a proximity sensor. My problem wasn't that the sensor would go off too easily, but rather that when it did go off, the pre-warn beeps fast and goes straight to full alarm trigger. I then took the prox out of the picture and just touched the pre-warn cable of my viper to a ground cable. Same thing happens. The problem here is that if you were someone getting a pre-warning from my alarm, there's no time to back up, etc. It just goes to full trigger. I have a BITwriter, but don't see anyway to adjust the pre-warn time,etc or improve this. Anyone else know how to? If I'm installing wrong, please feel free to recommend suggestions that I'm possibly overlooking.

P.S. In my testing, I have the alarm brain sitting on my car floor, and a piezo siren wired instead of normal siren. It's close by. Not sure if the siren (when pre-warn/warn-away'ing) is accidentally triggering the Brain's built-in shock sensor?

I've figured out the warn issue. The driver door trigger input I was using gives a 3 second warn but is (correctly) supposed to go straight to trigger after that. Only the shock sensor (which on a 5902 is internal) does a true warning without full trigger on lighter impacts. I wouldn't have a problem with opening up the 5902 and soldering my motion sensor to the inputs of the shock sensor (in place of the shock sensor), but without a wiring/board diagram, that's a bit much to undertake without risking the brain. I'm thinking I will use the AU94T for internal sensing only and thus if it's hard triggering, it will be because it should be triggering at that moment (i.e. someone's in the car for sure). As always any new ideas or comments can only help.

What's an AU94T?

Prox sensor is supposed to plug into a dedicated port on that unit.commit your way to jehovah and he will act in your behalf. psalms 37:5

I used an XK09 with the 5902 in D2D. I wired my DEI back-up battery to the blue trigger wire on the 5902. I then used the Mux port for my tilt trigger, glass-break trigger and Autogaurd AU94T Proximity Sensor. I used diodes to separate the blue hard trigger of each sensor as they tapped into the blue hard trigger wire going to the MUX port on the 5902. I then connected the green warn-away wire from my AU94T to the other blue (warn-away) wire that goes to the MUX port. Now I have proper working Warn-Away for the prox as well as properly working full triggering for any of the sensors. The only downside of this configuration is that my remote can only show one graphic (i.e. glass break sensor, proximity sensor) and not necessarily a specific one. I will probably set it to show proximity sensor, but in any case, I'll know something's been triggered. If the sensors need any future adjustment, I'll just detach the harness of the 2 sensors I'm not adjusting from the sensor side and work with just the one isolated sensor having an issue.

I meant Crimegaurd AU94T, not Autogaurd :)

Hi Guys, The very last step of my install is to actually stick the 2-way antenna of my Viper 5902 to my windshield. I've heard that tinting can mess with the signal and also that you want it as high up as possible. People suggest high up behind your rear-view mirror, but in my LTZ, there is some stock tinting around the rear-view mirror area and there are also some modules placed there. In short, can anyone upload some photos of how they have their antennas placed and what type of range they get on their system. I would entertain lengthening the stock antenna to brain cable so I could place this on a rear side window, but would rather keep things simple. A picture is the easiest thing to copy Any links to other posts/site with pictures of this in a 07 or similar layout Tahoe would help as well.

2007 Tahoe LTZ BTW

Right hand side, top of windshield. Or try it in the mirror position, I have a feeling the darkened area will make no difference.