I have the viper 5900 and have the back up battery and tilt sensor hooked up. I followed the dei intructions, I hooked up the red to constant power, black to ground, gray to alarm red power wire, and blue wire to blue wire on the alarm that is hooked up to the trunk trigger, i also hooked up the blue wire from the tilt sensor to the alarms blue wire, and I also put a diode on the blue wire from the back up batt and tilt sensor then splice into the alarm blue wire. Do I need to put diode from the blue alarm wire to the cars trunk trigger wire?

 

You need to install a diode on the trunk trigger lead, before the point where it is connected to the alarm, right now any ground output from tilt sensor or back-up batt. will go to grounding the trunk/hatch light, [turning it on] however the ground output from the tilt sensor and backup batt, is very "low", 500mA or less, the trunk/hatch light will need a lot more and will draw as much as it can from the sensor and batt.
Hopefully you have not damaged the sensor and/or back-up batt. trigger outputs, by not having a diode on the trunk/hatch trigger lead 94

 

Ok, i put a diode and tested the tilt sensor an it works fine, but when i arm it and disconect the battery the siren just chirps. I checked the voltage on the back up battery when disconected it was at 7.4 volts. How long does the back up battery take to charge?

 

Give it a day of driving around, if it does not go up to 12.5V replace it. 94

 

Cool thanks, you have been alot of help. I hooked up the horn to the alarm with a relay and it works, just need to know if i need diode on the tilt sensor wire that goes to the orange wire ground when armed and would it be better to hook the instant trigger on the hood trigger wire to take some load of the trunk trigger?

 

Unless the orange lead is being used for something else a diode is not needed.
As long as trigger leads are diode isolated it make no diff. how many you have on a trigger input. 94

 

im using the orange wire for the relay for the horn.

 

Wait, what???

Why would you do that? 94

 

I would also like to add this and will do a write up of the problem. You need to make sure your main car battery holds a charge and rest at least 12 volts or more. If not the back up battery will also rest at this level. This is a very big problem. Especilly if you have the parking lights wired to the alarm. If the alarm parking light output is switched to 12 volts. There will not be enough power to cover the parking lights, alarm and siren. So if the car is armed and the main car battery is cut. The alarm will not trigger or sound. And is pertty much useless. This also goes if you leave the car parked for a couple of days with out starting it. The best best is to use a relay to trigger the parking lights and switch the alarm output to neg insted of pos. The alarm cal run down to 6 volts on a weak back up battery. But not with it flashing the lights. I been testing this on my own cars after having the car sit for days then testing the 520t to see if it will work *** it should. Thank god I just found this out.

 

^^^ you know it states to only use neg. light flash with the 520t on its instructions right?
i posted pics of the install sheet back this summer when me and fcm had been discussing it in another thread.

 

87 to horn
30 to ground
86 to arm when ground (orange wire)
85 to parking light output
it works fine, just need to know if i need a diode cause i have the tilt sensor hooked up to the orange wire and the 86 pole for the horn relay?

 

Can you show me how to hook up a relay to parking lights?

 

why didnt you use the horn honk output? also theres a diagram for the park light relay in the install guide.

 

As asked, why did you not use the horn output, [H4/2 brown]? 94

 

i tried to use the h4/2, but would not work
85-alarm horn h4
87-ground
86- constant 12 volts
30 car horn
can you show me another way to hook it up properly?

 

MM&Y of car please? 94

 

95 integra gsr

 

anyone

 

You should not need a relay to do horn honk connect the H4/2 brown directly the the blue/green horn lead at the steering column. 94

 

I hook it up direct and it does not work, it worked fine the way i had it hooked up. Do I need to put a diode on the orange wire since I have my tilt sensor and horn spliced in? Can you show me how to hook up the relay to the parking light , so my back up battery would function correctly

 

Did you program it, [Menu #1 1-12 and 1-13]? 94

 

I programed it and horn still not working hooked up direct to brown wire

 

85-ground
86-parking light input
30- to parking lights
87-12 volts

Real easy

 

Did you try fcm advice? Do you have a multi meter to check to see if it is working.