EXTERIOR LIGHTS – Buick Lucerne CX 2008 – SYSTEM WIRING DIAGRAMS

EXTERIOR LIGHTS

Exterior Lamps Wiring Diagram (1 of 2) for Buick Lucerne CX 2008

List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Buick Lucerne CX 2008:

• 3.8l
• 4.6l
• Auto
• Backup lamp circuit
• Batt pos volt
• Body control module (bcm) (right of glove box)
• Center high mounted stop lamp (chmsl)
• Chmsl sply volt
• Driver outside rear view mirror (in driver's door)
• Engine control module (ecm) (left side of engine compt)
• Front passenger outside rear view mirror (in front passenger's door)
• G300 (under driver's seat)
• G301 (under left rear seat)
• G304 (under right front passenger's seat)
• G403 (right front wall of luggage compt)
• Hazard sw sig
• Hazard switch
• Head
• Headlamp switch
• Hot at all times
• If equipped
• Interior lights system
• J202
• J204
• J206
• Left corn lmp rly ctrl
• Left tail lamp
• Left turn
• Left turn sw sig
• Lf crn lamp fuse 20 10a
• Lf turn
• Lf turn sig lmp sply
• Logic
• Lr stop/turn lmp sply
• Off
• Park
• Powertrain control module (pcm) (left front of engine compt, inside air cleaner housing)
• Prk lmp rly ctrl
• Prk lmp sw on sig
• Rf crn lamp fuse 21 10a
• Rf turn
• Rf turn sig lmp sply
• Right backup lamp
• Right corn lmp rly ctrl
• Right tail lamp
• Right turn
• Right turn sw sig
• Rr stop/turn lmp sply
• Sig lmp x1 sply volt
• Stop lmp sw sig
• Tan
• Tan/pnk
• Throttle actuator control (tac) module (on throttle body assembly)
• Transmission control module (tcm) (left rear of engine compt)
• Trn/sig pcb relay
• Turn signal/ multifunction switch
• Underhood fuse block (on right front of engine compt, forward of strut tower)
• Underhood fuse block (on right front of engine compt, forward of strut tower) x3

Exterior Lamps Wiring Diagram (2 of 2) for Buick Lucerne CX 2008

List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Buick Lucerne CX 2008:

• B11
• Bcm (chmsl) fuse 39 10a
• Bcm (ctsy) fuse 35 10a
• Bcm (lttn) fuse 25 15a
• Bcm (rttn) fuse 36 15a
• E12
• G104 (right front corner of engine compt)
• G402 (left rear of luggage compt)
• G403 (right front wall of luggage compt)
• Hot at all times
• J323 (in body harness, approximately 15 cm (6 in) from branch for rear fuse block)
• J324 (in body harness, approximately 5 cm (2 in) from breakout for right inflatable restraint roof rail module)
• J326
• J402
• J404 (in rear fascia harness, approximately 13 cm (5 in) from breakout for license lamps)
• Left front cornering lamp
• Left front headlamp assembly
• Left front marker lamp
• Left license lamp
• Left park/ turn signal lamp
• Left rear marker lamp
• Left tail lamp assembly
• Left tail/stop & turn signal lamp
• Park lp-lt fuse 2 10a
• Park lp-lt fuse 4 10a
• Park lp-lt relay 58
• Rear fuse block (below left side of rear seat)
• Right front cornering lamp
• Right front headlamp assembly
• Right front marker lamp
• Right license lamp
• Right park/ turn signal lamp
• Right rear marker lamp
• Right tail lamp assembly
• Right tail/stop & turn signal lamp
• Tan
• Tan/pnk
• Trailer stop/turn
• Underhood fuse block (on right front of engine compt, forward of strut tower)

3.8L VIN 2

3.8L VIN 2, Backup Lamps Wiring Diagram for Buick Lucerne CX 2008

List of elements for 3.8L VIN 2, Backup Lamps Wiring Diagram for Buick Lucerne CX 2008:

• (lower left rear of engine) g112
• Automatic transmission
• Backup
• Backup lmp sply
• Batt pos volt
• Bcm (chmsl) fuse 39 10a
• Body control module (bcm) (right of glove box)
• Bus +
• Bus -
• Code a
• Code b
• Computer data lines system
• G403 (right front wall of luggage compt)
• Hot at all times
• Inside rear view mirror
• J325 (in body harness, approximately 7 cm (3 in) from breakout for battery current sensor)
• Left backup lamp
• Left tail lamp
• Lmp sply volt
• Logic
• Powertrain control module (left front of engine compt, inside air cleaner housing)
• Rear fuse block (below left side of rear seat)
• Right backup lamp
• Right tail lamp
• Sig a
• Sig b
• Tan
• Transmission internal mode switch
• X2 e12

4.6L VIN Y

4.6L VIN Y, Backup Lamps Wiring Diagram for Buick Lucerne CX 2008

List of elements for 4.6L VIN Y, Backup Lamps Wiring Diagram for Buick Lucerne CX 2008:

• (in body harness, approximately 7 cm (3 in) from breakout for battery current sensor) j325
• (lower left rear of engine) g112
• Automatic transmission
• Backup
• Backup lmp sply
• Batt pos volt
• Bcm (chmsl) fuse 39 10a
• Body control module (bcm) (right of glove box)
• Bus +
• Bus -
• Computer data lines system
• E12 x2
• G403 (right front wall of luggage compt)
• Hot at all times
• Inside rear view mirror
• J105
• Left backup lamp
• Left tail lamp
• Lmp sply volt
• Logic
• Nca
• Rear fuse block (below left side of rear seat)
• Right backup lamp
• Right tail lamp
• Sig a
• Sig b
• Tan
• Transmission control module (left rear of engine compt)
• Transmission internal mode switch