Hi Roman,
Firstly, do you have a factory fitted alarm or is it a 3rd party one?
Do you hear any sort of noise from the door, or the relays in the kick
panel when you try the fob and it's not working?
OK, fistly you need to go back to the type of alarm question. If it's
a factory alarm (as opposed to dealer fitted one) then it should be
properly wired in to the wiring harness.
Having said that, all the 80's I have seen appear to have factory
alarms, however they all dealer fitted ones, there are a few types, but
one of the key things with them is that they don't appear to just plug
in to the car's wiring loom - most of them are jury rigged with those
press on blue clip thingies. You will also find that the location for
the base unit varies and is generally just slotted in behind the dash
somewhere, more often than not behind the passenger side dash
somewhere.
When fitted, these alarms need have a wire run over to the control ecu
in the drivers door to provide the signal for locking and unlocking
(actually there may be too wire, can't remember off the top of my
head). One of the key things to point out is that wire needs to
actually go over to within the door, there are several wires of the
same colour in the loom going into the door and it's a bugger to
seperate them out.
The easiest route is to run the wires into the door and hook up to the
wiring where it plugs into the ecu - it makes it easier to ensure you
have the right connections.
The point I am trying to make is that there are a lot of places where
the there could be problems, the ecu is just one of them. I believe
that the the ECU controls all the door solenoids so if the switch in
the drivers door work for locking and unlocking and also the key works
for locking and locking then I am inclined to believe that the ECU is
fine.
I know it's probably a dumb question, but the first thing I would do is
check the battery for the remote key fob - the fact that it works the
first couple of times and then stops could be indicative of a battery
on it's way out.
The next thing I would do is to try to locate the alarm unit and then
trace the wires from there to the ECU in the door.
--
Regards,
Julian Voelcker
Mobile: 07971 540362
Skype: julianvoelcker
Cirencester, United Kingdom
1994 HDJ80, 2.5" OME Lift