94 850 Diagnostics Not working

[Eric Robishaw]

Any ideas:

I'm trying to reset the service light, and the diagnostic's light
never responds. I put the doo-hicky into terminal 7 (of the A box),
pressed 4 times at approx. 1 sec intervals, and waited...no response
back.

I have the ignition at II.

One thing I should mention: the dash console is currently out of the
car (waiting for a part to come in).... could this keep the
diagnistics from working?

I also tried pressing 5 times, to get the mileage, but it did nothing
either.

The little light does come on when I depress the button... never
otherwise.

Any tips?

Eric

 

[Tim..]

Any ideas:

I'm trying to reset the service light, and the diagnostic's light
never responds. I put the doo-hicky into terminal 7 (of the A box),
pressed 4 times at approx. 1 sec intervals, and waited...no response
back.

I have the ignition at II.

One thing I should mention: the dash console is currently out of the
car (waiting for a part to come in).... could this keep the
diagnistics from working?

Well yes!!!!! The service indicator is in the dash unit and the controller
for the light is in their too. Course it won't work!!!!!

Tim..

 

[Guest]

Have you tried other terminals in the A box.
I'm not that familar with 850 (RWD enthusiast) but I have a wiring diagram
that shows no connection at terminal 7 in the A box but in the diagnostic 2
connector in front of the gear selector. This terminal is however connected
to terminal 6 on the A box!

Per
Remove "spamstopper" from adress if direct email is used.

 

[Guest]

Never mind what I just replied.
After searching a bit on www.brickboard.com I got a whole lot wiser!

And from the wiring diagrams I can also see, that the instrument cluster
surely connects to the A box on terminal 7.

Of course there is no more to it, than Tim wrote, that the controller for
the service light is in the instrument cluster, which in your case is not
connected.

Per