Power Window Switch: Description and Operation

System Description

Power is supplied at all times
- to tail lamp relay terminals (1) and (6)
- through 15 A fuse [No. [63], located in the fuse, fusible link and relay box].

Ground is supplied
- to the lighting switch terminal (5)
- through body grounds (E22) and (E36).

When the lighting switch is turned to 1ST or 2ND position, ground is supplied
- to tail lamp relay terminal (2)
- from the lighting switch terminal (11).

Tail lamp relay is then energized, and power is supplied
- from tail lamp relay terminal (7)
- through 7.5 A fuse [No. [22], located in the fuse block (J/B)].
- to BCM terminal (3)

BCM is connected to LCU03 and LCU04 as DATA LINE A-1 or A-2.
Rear power window switch illuminations are combined with LCUs.
When lighting switch is turned to 1ST or 2ND position, BCM sends a signal to turn on rear power window switch illuminations.