NO Power to the CCU, please help
 

Hey guys

My AC works great and my heat, but the power to the CCU cuts out, and none of the controls work, NO power what so ever except for the back lights on the face, NO AC, NO Heat, NO fan, then a few minutes later everything works great, ??

Any ideas guys ?

Try This on the connectorshttp://forums.pelicanparts.com/uploa...1497366786.JPG

My first plan of attack my intermediate working CCU,

1 check all the fuses 1, 17, 28 and 36. 2 lift the fuse box and check for any lose wires, 3 clean the the connection from the ground strap to the chassis, 4 clean the ground connections to the chassis behind the fuel gauge, 5 check for a strong ground on pin K 1. 6 check for continuity. between pin K 1 and G18 on the CCU, 7 check for 12V on pins K2, G17, G29, G35,

I don't plan on checking the oil cooler sensor or the evaporator sensor or the AC FAN sensor because they all work when I have power to the CCU, which is 75% of the time. because of that I'm assuming it's not my relays. I also jumped the the relays and the fans on the AC and Oil cooler come on only when there is power to the CCU, but when there is no power to the CCU jumping does no good.

If I don't have a strong ground, I'm thinking of running a wire from the battery to the chassis ground connection behind the fuel gauge, I'm assuming that the CCU harness gets it's ground from there, If any one has experienced this before, please chime in

At a glance the pins on the harness look fine as does the wiring, Let the fun begin

Did all that last night, I had good ground, So far the power has not cut, I drove a bunch last night and today its 88 deg and 50% humidity, its blowing cold... 36 deg at the vent, I think thats good. and all the fans are working in and out side of the car,http://forums.pelicanparts.com/uploa...1497547977.JPG
http://forums.pelicanparts.com/uploa...1497548183.jpg
http://forums.pelicanparts.com/uploa...1497548199.jpg

I had the CCU working for a few days then the power would cut off again, Then nothing worked, I have sent the CCU out to ECU Doctors for a rebuild , It will be in tomorrow

Got my CCU back from ECU Doctors, Plug and play, looks like new and works great, thank you ECU Doctors, Now if they would take on rebuilding EZ69'shttp://forums.pelicanparts.com/uploa...1499918032.jpg
http://forums.pelicanparts.com/uploa...1499918046.jpg
http://forums.pelicanparts.com/uploa...1499918073.jpg
http://forums.pelicanparts.com/uploa...1499918088.jpg