[axxense]

Thanks Tim. Nope - no green light - no light, at all.

I suppose by the black button you mean the comp or temp buttons? Is there a black button I haven't noticed? Maybe you mean the 'button' to the left of the comp button?

I do see two square holes - one to the left of the comp/temp button and one to the right. The smaller hole on the left looks to be what was a light, maybe, and the hole to the right looks to be a light sensor..

Removed the connector from the back, again, and pushed the loom leads into it (they didn't move, just thought to push on them) - still nothing.

Felt all over the thing (and looked at it) and don't see anything else that might reset it. Is there some strange combo of holding both the comp and temp buttons while starting the truck and pressing the gas three times (like resetting the Oil Engine Life DIC)?