Non-Mustang Ford & Mercury Models > Cougar 1967-73

1969 cougar underdash wiring question

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Coralsnake:
Can you explain early to late changes?

Very helpful.

Interesting the Cougar AC is integral and the mustang is an add on....

To the best of my knowledge there were four 1969 Shelbys fitted with the Cougar dashes. All were engineering cars.

krelboyne:
The plugs to the instrument cluster are pinned differently. Grounds are in a different locations. You will let the smoke out of your overlay immediately, if you have the wrong one.

Early should be the black plug and blue printed circuit board.

Red printed circuit boards were used generally after Feb 1969 and on into 1970 on the XR7.

Coralsnake:
Thanks, very good information

Coralsnake:
I have been comparing the 1969 XR7 early harness with the 1969 Mustang tach harness. While they are similar, there are some fundamental differences.

The first is the two plugs to the tail light harness. The Cougar runs three extra circuits from the turn signal to the rear of the car. It is of course made for the sequential lights. The Mustang is not.

The second is addition of the dash switches for the Cougar.

The dash pod is pinned differently, adding some circuits like the seat belt warning light.

Im going to try to track down the Mustang /Cougar dash cars to see what harness they used.

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