I need to know the engine size, 2dr or 4dr.
The BCM is located next to the fusebox behind the left side of dash:
To access it, first pull off lid C:
next, remove lower instrument panel cover:
now, remove 2 screws to release bcm from steering member :
The wiring harness plugs into the BCM, but it is a CAN system which is high rate data lines. This not normal wiring. If your relative has never worked on CAN datalines, odds are he will end up costing you more in the long run by frying something else.