Hello again Danny,
Apopolgies all for top posting it seems appropriate this time.
You are having fun aren't you, I'd bet your very fed up with seeing behind
that centre console now!!
The amount of testing you've done so far is directing the process of
elimination to the unsavoury area of the seatbelt warning system unless
anyone else knows better, I think there is only one easy definitive way of
testing for this causing your problem, but, it does involve interfering with
some more wiring, it's as follows:- from terminal 49a on the flasher there
should be three yellow wires, two of them go to the front seats, the other
goes the indicator stalk switch, then back to the hazard switch, if you are
confident enough, pry at the small catch which releases the yellow bunch of
wires from the relay plug, and remove the yellow wires from the plug,
reconnect the relay to the plug; you need to then separate all three yellow
wires from the previously freed spade connector, strip a small amount of
insulation from the end of each; turn on your hazard light switch, at this
point nothing should be flashing, touch each of the yellow wires in turn
back to terminal 49a (through the hole in the plug), one of them will cause
the flashers to start working, this is the important one to reconnect back
properly (you should be able to figure a way) to 49a; one of the other
yellow wires should cause the seat warning lamp to flash (assuming LHD with
no one currently in the passenger seat), put a label on this wire to the
effect that it's for the drivers seat, the other yellow wire, if there is a
passenger seated (seatbelt unclipped), should also cause the seatbelt
warning lamp to operate, also label this wire for future reference.
Leaving the two seatbelt wires disconnected, but insulated, re-assemble
things to your satisfaction, try a short drive somewhere (after checking
your flashers still work ok!), if your flasher relay is now behaving itself,
then celebrate, if it isn't, then the only other thing I can think might be
causing this problem would be an unstable or 'dirty' supply voltage from
your alternator, though this is extremely unlikely, it's fixable by changing
the voltage regulator, other than this I'm now officially stumped, unless
there is some third party electronics, such as an alarm somewhere attached
to the indicator wires, but it would have to be very faulty to cause this.
TTFN, Ken
