A little project I have been working on. You can see details here
First off is I had to redo some of the traces on the main board for the EVIC, as an electrolytic filter cap leaked, eating away some of the traces. That problem has been solved. All other caps look okay, and meter okay.
This is the big problem. I can put the EVIC in the van, and it will power up. It receives data over the CCD Bus, and will show me mileage info (miles to empty, MPG instant and average). When you shut the van off, the display will stay on for 30 seconds. This is because the CCD bus stays active for 30 seconds after the van is shut off and the driver's door is closed.
The pickle, when you go to restart the van, the EVIC will not come back on. I can plug my Snap On MT2500 scanner into the van, read the CCD bus, and it will see the EVIC head. It can run a short display test, and detect button presses of the control buttons. However, the display will not "wake up" unless you unplug the EVIC and plug it back in. Then the display will work again, until it goes back to sleep.
There is six wires in the EVIC head. Two grounds (grounded to the body). CCD Bus + & - (wired with a twisted pair of wires down to the CCD Bus diagnostic port under the dash. A pink wire which powers the map lights and EVIC head, and a yellow wire which is supposed to be the IOD wire for the clock in the head. Both the pink and yellow are wired to a constant hot.
I also have the Engine node from the donor vehicle. It is installed, and wired to the CCD bus, but I have not yet wired it to a keyed hot. (I had it wired to a constant hot, but the EVIC head would not shut off, likely due to the CCD Bus staying active.)
So, anyone here want to take a crack at my troubles?