Trying to install a Viper 3400 alarm on my 1990 LX hatchback. Having issues with the door lock actuators. I've got everything that I'm going to hook up working (siren & marker lights - I'll throw in the hatch release and starter interrupt once I get these door locks figured out). The door locks work fine when not using the alarm (meaning, when I throw the switch on the door panel the doors will lock and unlock properly).
I'm using two SPDT relays to operate the door lock actuators, but I keep blowing fuses as soon as I try to lock or unlock the car with the fob.
The first time I wired up the alarm, I took my constant hot for the brain from the cigarette lighter circuit (lighter is not used and the only other thing on that circuit should be the horn). I took my constant power for my door lock actuators from the same location. Figuring that might be the problem, I then took my hot for the actuators from the headlight/marker switch. But I then started blowing THAT fuse while the cigarette lighter fuse was fine.
Checking the leads on my Bosch style relays with a test light, I had hot on 86 and 87 and nothing on 85, 87a or 30 (Type B relay with no diode). When I would click the lock button on my fob, I would then get a second or so of hot to pin 30 (verifying, I think, that the relay is functioning properly). Did the same thing with the other relay with the unlock button and it worked as well. As soon as I connect pin 30 to the pink/yellow or pink/green wire (which is where I get a pulse when the door lock switch is thrown) and click either lock or unlock on the fob, I blow the fuse on the circuit the relays are on.
I've tried reversing the hots between 85 and 86 and still blew the fuse. I also tried reversing the hot between 87 and 30 and still blew the fuse (I've gone to every site that I could find mentioned on this forum in regards to wiring these relays and find that they're just not consistent with regards to which terminals should be hot...so I've tried them all).
What am I missing? I know this topic has been pretty well beaten to death, but any help would be greatly appreciated!
I should add...I haven't tapped into the ignition wire yet. Not sure if that's important for this or not. My concern with the ignition wire is, why does the brain have 18 gauge wires tapping in to 12 gauge wires??? Is that something that should concern me, or should I just hook it up and not worry about it?
On a side note...when I blow the fuse on the headlight/side marker switch circuit, why do the headlights and side markers continue to work properly??? I purchased the car a couple yeas ago as a project car, but just now getting around to it. Was just curious if this headlight switch is working properly or if the previous owner changed the wiring to the lights or something.
tl;dr
seems the relays are wired and working as expected but as soon as I connect the relays to the door lock wires, I blow the fuse that the relay's are on. Door locks still work normally without using the fob.
I'm using two SPDT relays to operate the door lock actuators, but I keep blowing fuses as soon as I try to lock or unlock the car with the fob.
The first time I wired up the alarm, I took my constant hot for the brain from the cigarette lighter circuit (lighter is not used and the only other thing on that circuit should be the horn). I took my constant power for my door lock actuators from the same location. Figuring that might be the problem, I then took my hot for the actuators from the headlight/marker switch. But I then started blowing THAT fuse while the cigarette lighter fuse was fine.
Checking the leads on my Bosch style relays with a test light, I had hot on 86 and 87 and nothing on 85, 87a or 30 (Type B relay with no diode). When I would click the lock button on my fob, I would then get a second or so of hot to pin 30 (verifying, I think, that the relay is functioning properly). Did the same thing with the other relay with the unlock button and it worked as well. As soon as I connect pin 30 to the pink/yellow or pink/green wire (which is where I get a pulse when the door lock switch is thrown) and click either lock or unlock on the fob, I blow the fuse on the circuit the relays are on.
I've tried reversing the hots between 85 and 86 and still blew the fuse. I also tried reversing the hot between 87 and 30 and still blew the fuse (I've gone to every site that I could find mentioned on this forum in regards to wiring these relays and find that they're just not consistent with regards to which terminals should be hot...so I've tried them all).
What am I missing? I know this topic has been pretty well beaten to death, but any help would be greatly appreciated!
I should add...I haven't tapped into the ignition wire yet. Not sure if that's important for this or not. My concern with the ignition wire is, why does the brain have 18 gauge wires tapping in to 12 gauge wires??? Is that something that should concern me, or should I just hook it up and not worry about it?
On a side note...when I blow the fuse on the headlight/side marker switch circuit, why do the headlights and side markers continue to work properly??? I purchased the car a couple yeas ago as a project car, but just now getting around to it. Was just curious if this headlight switch is working properly or if the previous owner changed the wiring to the lights or something.
tl;dr
seems the relays are wired and working as expected but as soon as I connect the relays to the door lock wires, I blow the fuse that the relay's are on. Door locks still work normally without using the fob.
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