Ready to head down another RABBIT HOLE?

The Windshield Wipers on this rough 2005 Volvo XC90 never worked right since the owner bought it. There is obvious DIY FRUSTRATION under the hood trying to fix the wipers.
Hack wiring has been installed, so we need to clean up this MESS and start from scratch.

How hard can windshield wipers be to diagnose?
In this case, NOT TRIVIAL AT ALL!
They are controlled by the CEM (Body Control Module), which also talks to the "Rain Sensor", wiper motor, and appropriate relays.

Owner says that he already sent the CEM (Body Control Module) to be refurbished, and the company found some BURNT TRACES on the board??
Here we go...

LAUNCH X431 PRO3S+:
https://www.amazon.com/dp/B092894STV?...

TOPDON TORNADO 90000 BATTERY CHARGER:
https://www.amazon.com/dp/B09XV64Q49?...

ASTRO DC AMP CLAMP:
https://www.amazon.com/dp/B08MTCMWLB?...

Enjoy!
Ivan