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65 posts · Joined 2007. #5 · Dec 27, 2007. The alarm relay is not the one in the middle of the picture with the pink wire as mentioned above...that is the Window relay. The alarm relay is the one next to it with the yellow, orange and blue wires going to it. Hopefully this will help someone else in the future.
I have every bit of the old alarm removed and the cars original wiring repaired, and everything works EXCEPT the factory alarm, I do know the alarm horn is good (tested by removing it and connected to battery) and the alarm relay in the console DOES energize when I turn the drivers door lock to the left, all the pin switches checked good when I ...
rjent yeah, thats exactly right, the alarm has worked correctly (going off whenever a t-top, door, or hood was opened) NOW, it will only set when either a t-top, door, or the hood is opened and will sound as soon as I CLOSE the T-Tops, doors, or hood,,,,yes WIERD!
One in each door by the door striker and one under the hood by the passenger side windshield. There are two wires to each switch and when the hood or doors are open and the alarm is armed it will close the circuits at the pins and sound the alarm. I believe the siren is under the rear fender unless they moved it in later models.
That will make the alarm relay (the one you're wondering about) click "on", but apparently without setting off the alarm horn itself. The current through the switched on relay alone, regardless of whether its shuttling any power to any other circuit, is enough to kill your battery overnight if it's a bit marginal.
my 79 had the same problem i traced it to the alarm relay that lives in the center console near the shifter . its probably not the relay itself but the alarm switch or door , hood , or tee top sensors. i just disconnected the relay till i get time to troubleshoot the system . its been awhile ago but i think its on the same fuse circiut you mentioned. check it out and let us know.
Thank goodness I spent the $12 on the new key fob, which led me to find out that the alarm relay was bad. I cancelled the flatbed, but will keep my appointment with the mechanic on Wednesday, because I do still get C1278 (TCS Temporarily Inhibited By PCM) and C1282 (Yaw Rate Sensor Bias Circuit Malfunction).
200 posts · Joined 2007. #2 · Oct 19, 2007. Yes, alarms were available far earlier than 77, yours is a late 77 with the alarm switch incorporated in the door lock switch, the early 77s have the switch in the drivers side front fender. There are also switches in the a pillars (the same ones that control the courtesy lights) and one under the ...
Patrick said: From my '85 Haynes manual: "If activated, the theft deterrent system alarm pulsates the vehicles horns at 50 cycles per minute. At the same time the alarm is triggered the starter interrupt relay is energized, disabling the starter solenoid circuit. In order to conserve vehicle battery power, the alarm shuts off after 3-7 minutes ...
If I recall correctly the Horn relay is on the passenger side under the hush panel of the dash.. The fuse is in the aux. fuse box and the relay is under the right hand hush panel. On the 92 there are 5 relays that all look alike. They are from right to left ( looking towards the front of the car) Fog lamp relaY, Dome lamp relay, fuel pump relay ...