Windows: Description and Operation

With the ignition switch in the ON or START position, power is supplied
^ from 7.5 A fuse (No. (12) ,located in the fuse block in the HEC)
^ to BCM terminal (29).
Driver door control unit (LCU01) terminals (1) and (2) are connected to BCM terminals (38) and (33) by DATA LINES A and B. Also, driver door control unit terminals (11) and (12) are connected to front power window regulator LH terminals (2) and (1) respectively.
Rear LH door control unit (LCU04) and rear RH door control unit (LCUO3) terminals (1) and (2) are connected to BCM terminals (38) and (33) as DATA LINES A and B. Also, rear LH and RH door control unit terminals (15) and (16) are connected to rear power window regulator LH and RH terminals (2) and (1) respectively.
Passenger door control unit (LCU02) terminals (1) and (2) are connected to BCM terminals (38) and (33) as DATA LINES A and B. Also, passenger door control unit terminals (11) and (12) are connected to passenger side power window regulator terminals (2) and (1) respectively.
When a power window switch is pushed, a signal is sent to BCM by DATA LINES. BCM sends a signal to all door control units and all door control units supply power and ground to all power window regulators