Wiring Harness on Valve Block, Connection Diagram

The valve block valves -1- are currently identical in construction. They are allocated through the wiring harness connector assignment -6- and are activated accordingly by the Thermal Management Control Module -J1024-. Refer to Wiring Diagram.
The allocation and activation of the valves (Refrigerant Shut-Off Valve 2 -N640-, Refrigerant Shut-Off Valve 3 -N641-, Refrigerant Shut-Off Valve 4 -N642- and Refrigerant Shut-Off Valve 5 -N643-) in the valve block -1- only occurs through the layout of the connectors -2, 4, 5 and 7- from the wiring harness -6-. If the valve block is installed in the bracket rotated at 180 degrees and the wiring harness is connected correctly as shown, this changes the function of the individual valves (they are mirrored), but the function of the valve block itself remains the same.

Courtesy of AUDI OF AMERICA, LLC