There is a little electronic device  on the Bentley diagram that looks
like a flasher, connected in parallel with the LED. This device looks like
the one that does the blinking, when signals trigger it. Such signals
of course are from low coolant detection devices. I believe this flasher
will automatically do a few seconds of blinking upon power on when the ignition
key is turned on. If the LED continues to blink after powering up the flasher may
be defective. If everything else appears to be working OK take a look at this
device in the instrument cluster. It is a possibility only of course. If you have
a spare cluster if will be a quick check by plugging it in.

David

--- Benny boy <huotb@VIDEOTRON.CA> wrote:

> I have been struggling for 5 hours on a similar problem, but worse.
>
> The light will blink crasy erraticaly for no reason, i mean will even pulse
> with the engine rpm at start up, after the engine start, it will do all kind
> of crasy thing... of course every wire, plug connector, relay have been
> replace/check. From the engine bay to the cluster. Even the 2 plug going to
> the relay and the other one unplug, this is still happening. So i pulled the
> yellow and the blue one out of the cluster connector and i still have the
> problem... so you will say cluster! but no, i have a spare one and smae
> stuff is happening. So the conclusion, one of the other 10 or so wire is
> making a short and that light react to it!!!
>
> The van is an 84.
>
> So today i should find more and i will post about it.
>
> Ben
>

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