Chevrolet'05 Uplander 3.5 engine

[Bllinda]

Hi everyone,
Drove the car Chevrolet '05 Uplander 3.5L scanning the errors with Tech2.
PCM
U0107
P0606
P0601
and
BCM unit
B1390
The problem is that after 5-15 minutes the engine dies and will not start. Live settings, please make a Reset key. Then, the film is trying to start a car need to close the open control. And when the ignition is activated and the motor is running 2-7 minutes.
What do you think about failure?

Many thanks for any help

P. S. I can not find the original wiring diagram.

[genius76]

B1390 lov voltage input or output first p dtc dead ecu or same codes u get if BAD voltage or fed to ecu luks like u get some wiring or conectors problem not so but tray get simple fuse lokations for ecu and check all ground points
Cant help with Chevrolet have just for opel/Vauxhall if here spme same cars or ecu try find fed input