Hi everyone,..great site!
I have a Dodge ram1500 2002 reg cab plain..no power options
I purchased a Huatai HT-800A 2way LCD remote alarm. My problems are...
1-the door trigger (-) tan wire FL
I have searched this site up and down and tried the diodes. Seems that the negative volts drops???...i put a voltmeter with the diode and when the trigger is activated, the voltage goes to -11.88 then when the dome light start to dime out the voltage at the trigger does too and my alarm set off. tried both ways on the diode just for sakes and same result. What am i doing wrong?
2-auto arming
on this alarm module you can select auto or not, right now its on OFF but when i drive away, the doors locks , the alarm arms and sets off down the road. Tried both position on the selected prongs but same result. One thing that i am not sure of is the doors and the trunk/hood wire not being connected properly or not at all might affect this issue. Any takes?
My biggest concern is be able todrive with out having the alarm setting off while driving...thanks for all the help i will get!

Sorry but it seems like you dont understand how the triggers work. Connect your multimeter black lead to ground and the red lead to the wire that you are testing. If the door is open and its reading 12v and then goes to 0v when you close then its a positive trigger. If you have a 0v when open and 12v when closed then its a negative trigger. You are testing the dome light wire. The voltage will drop as the lights go out. . As far as I know you would have to go to the driver for the 2 left doors in kick panel and diode isolate each door trigger into that blue wire and in the passenger kick panel for the other 2.
Thanks Enice,
But on this truck all i have going into the door is 4 wires..2 for the speakers and 2 for the door trigger.
When i open the door the voltage goes almost zero.. when i close the door, the voltage goes to almost 12 then drops down to almost zero and the alarm sets off.
The wire in question is the TAN wire as per the diagram.
https://www.the12volt.com/installbay/forum_posts.asp~TID~471
just at a lost right now...
Use Doc 1076....its needed for some Dodge vehicles.. Do a search on this website for that doc
Thanks enice again...
I looked at my voltmeter while playing with diodes and did plenty of tests. My conclusion is that my alarm panel is looking for a neg or positive input depending on the prong settings to set off the alarm. So, with my dodge, the power goes from 11+v when you shut the door, 25ish seconds later drops to 3~4 volts.
Now, I dont know what the 2 diodes will do to resolve this problem. I need a on-off signal not a its there now then gone in 30 secs. Am i missing something in this double diode set up?
A diode prevents back flow. There are four doors. Am I correct? Each door has a trigger. Like mentioned earlier you would look for those 4 wires and diode isolate each. According to my DEI program it does not mention a tan wire on the b pillar. Be advised that the wiring I have is for a 2002 Dodge Ram Pickup. I would go to each door trigger. 2 are in the driver kick panel and the other 2 are on the passenger kick like mentioned above. They are negative triggers.