INTERIOR LIGHTS

Ambient illumination
Avant
Comfort system center control module (a4: right side of trunk) t17p (s4: below driver's seat)
Computer data lines system
Driver's make-up mirror light contact switch
Driver's side fuse panel (a4: behind left end of dash)
Front passenger's make-up mirror light contact switch
Fuse 5a
Fuse carrier 1
G50 (a4 avant & sedan: left side of luggage compt)
G51 (a4 avant & sedan: right side of luggage compt)
G639 (a4 avant & sedan: behind left kick panel)
G654 (a4: top of right "d" pillar)
G687 (a4 avant & sedan: left side of center tunnel)
G730 (a4 avant & sedan: base of right "c" pillar)
Glove compartment lamp switch
Glove compartment light
Left front footwell light
Left luggage compartment light
Left make-up mirror illumination
Left rear footwell light
Luggage compartment light
Rear lid lock button
Right front footwell light
Right luggage compartment light
Right make-up mirror illumination
Right rear footwell light
Sedan
T16b
T17l
T17m
T32a
T32b
T32c
Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)
W/ led
W/o led

Automatic day/ night interior mirror
Computer data lines system
Discontinued, phased in modification
Driver side door control module (a4: in driver front door) (s4: integrated in driver's door window regulator motor)
Driver's door contact switch
Driver's door warning light
Driver's map/ reading light
Driver's reading light button
Front interior lamp assembly
Front interior light
Front passenger side door control module (a4: in front passenger front door) (s4: integrated in right front door window regulator motor)
Front passenger's door contact switch
Front passenger's door warning light
Front passenger's map/ reading light
Front passenger's reading light button
G639 (a4 avant & sedan: behind left kick panel)
Instrument illumination circuit
Interior illumination switch
Left front entry light
Left rear door contact switch
Left rear door control module (a4: in left rear door)
Left rear door warning light
Left rear entry light
Left rear interior light
Left rear reading light switch
Phased in modification
Rear interior lamp assembly
Red
Right front entry light
Right rear door contact switch
Right rear door control module (a4: in right rear door)
Right rear door warning light
Right rear entry light
Right rear interior light
Right rear reading light switch 1
T16o
T16p
T20f
T20g
T20h
T20i
T32j
T32l
T8b

(a4: in left rear door) left rear door control module
12 v socket (if equipped)
Center instrument panel vent illumi- nation
Computer data lines system
Dimmer switch
Driver's side fuse panel (a4: behind left end of dash)
Electromechanical parking brake button
Fog lamp button
Fuse 5a
Fuse carrier
G639 (a4 avant & sedan: behind left kick panel)
G687 (a4 avant & sedan: left side of center tunnel)
G688 (a4 avant & sedan: right side of center tunnel)
Garage door opener control module (a4: behind center of front grille) (s4: behind right side front bumper cover)
Hot at all times
Hot w/ power relay (terminal 15) energized
Instrument panel illumination
Left instrument panel vent illumi- nation
Left rear door opener illumination
Left rear door warning light
Left rear entry light
Left rear interior lock switch
Left rear window switch
Light switch
Parking aid button, asr/esp button & rear window shade switch
Passenger's side fuse panel (a4: behind right end of dash)
Rear fog lamp button
Rear temperature selection potentiometer
Right instrument panel vent illumination
Right rear door control module (a4: in right rear door)
Right rear door opener illumination
Right rear door warning light
Right rear entry light
Right rear interior lock switch
Right rear window switch
T16b
T16o
T16p
T17m
T20h
T20i
T32a
T32b
Valet parking lock button
Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)
W/ navigation system
W/o navigation system

(a4 avant & sedan: right side of center tunnel) g688
12 v socket 2 (if equipped)
Alarm system off switch
Central locking safe indicator lamp
Cigarette lighter
Computer data lines system
Driver side door control module (a4: in driver front door) (s4: integrated in driver's door window regulator motor)
Driver's door opener illumination
Driver's door warning light
Driver's interior locking switch
Driver's seat memory program control head (w/ memory)
Front interior lamp assembly
Front passenger side door control module (a4: in front passenger front door) (s4: integrated in right front door window regulator motor)
Front passenger's door opener illumination
Front passenger's door warning light
Front passenger's interior lock switch
G639 (a4 avant & sedan: behind left kick panel)
G688 (a4 avant & sedan: right side of center tunnel)
G730 (a4 avant & sedan: base of right "c" pillar)
Left front entry light
Left rear seat head restraint adjustment button
Mirror adjustment switch
Power window control head
Rear lid remote unlock switch
Right front entry light
Right rear heated seat regulating switch
Sunroof regulator
T20f
T20g
T32j
T32l
T8b
Telephone base plate (if equipped)
Window regulator switch

INTERIOR LIGHTS – Audi S4 Quattro 2009 – SYSTEM WIRING DIAGRAMS