EXTERIOR LIGHTS – Buick LaCrosse CXL 2008 – SYSTEM WIRING DIAGRAMS

EXTERIOR LIGHTS

Exterior Lamps Wiring Diagram for Buick LaCrosse CXL 2008

List of elements for Exterior Lamps Wiring Diagram for Buick LaCrosse CXL 2008:

• (in left taillight wiring harness) j902
• (in right taillight wiring harness) j903
• (mounted to right strut tower) underhood fuse block
• 10 volt ref
• 3.8l & 3.6l
• 5.3l
• Anti-lock brakes & engine controls system
• Anti-lock brakes, engine controls & transmissions systems
• Auto
• Batt positive volt
• Bcm class 2
• Bcm class 2 serial data
• Body control module (bcm) (below left side of dash, left of steering column)
• Brake pedal position sensor (under left side of dash, on right side of brake pedal)
• Center high mounted stop lamp (chmsl)
• Chmsl/ bkup fuse 15a
• Computer data lines system
• Driver information center (dic) switch
• G100 (in back of right headlight on frame)
• G101 (left side of front end upper tie bar, in back of headlight)
• G202 (left side of dash, at base of steering column)
• G301 (inside left door sill, forward of left front seat)
• G302 (in right door sill, forward of right front seat)
• Hazard
• Hazard sw sig
• Hazrd fuse 20a
• Head
• Hot at all times
• I/p fuse block (behind right side of dash)
• Ign
• Instrument panel cluster (ipc)
• Ipc class 2 serial data
• J111
• J112
• J113
• J124
• J211
• J214
• J401
• J402
• J406
• J900
• J901
• Jx407 (in body wiring harness, under passenger seat, at rear carpet)
• Lamp switch assembly
• Left
• Left front marker lamp
• Left license lamp
• Left park/ turn signal lamp
• Left rear marker lamp
• Left tail/ stop & turn signal lamp
• Left turn indicator
• Left turn sw sig
• Logic
• Low ref
• Lower left tail lamp
• Lower right tail lamp
• Lr stop/turn volt
• Off
• Park
• Park lamp on sig
• Park lmp rly ctrl
• Prk lamp fuse 10a
• Prk/ lamp relay
• Right
• Right front marker lamp
• Right license lamp
• Right park/ turn signal lamp
• Right rear marker lamp
• Right tail/ stop & turn signal lamp
• Right turn indicator
• Right turn sw sig
• Rr stop/turn volt
• Sply volt
• Stop lamp sw sig
• Tan
• Turn signal/ multifunction switch
• Upper left tail lamp
• Upper right tail lamp
• X1 c2
• X1 e2
• X1 x1
• X2 a6
• X2 e11
• X2 f9
• X3 a9
• X3 c6

3.6L VIN 7

3.6L VIN 7, Backup Lamps Wiring Diagram for Buick LaCrosse CXL 2008

List of elements for 3.6L VIN 7, Backup Lamps Wiring Diagram for Buick LaCrosse CXL 2008:

• (in body wiring harness, under passenger seat, at rear carpet) jx407
• (mounted to bank 1 cylinder head above exhaust manifold) g115
• (or 2500)
• (or 2501)
• (or tan)
• Automatic transmission
• Backup lamp sply volt
• Battery positive volt
• Bcm class 2 serial data
• Body control module (bcm) (below left side of dash, left of steering column)
• Chmsl/ bkup fuse 15a
• Computer data lines system
• G301 (inside left door sill, forward of left front seat)
• G302 (in right door sill, forward of right front seat)
• Gmlan ser data
• Hot at all times
• I/p fuse block (behind right side of dash)
• J116
• J900
• J901
• Left backup lamp
• Right backup lamp
• Tr sig a
• Tr sig b
• Transmission control module (tcm) (except 5.3l: inside air cleaner, left front of engine compt) (5.3l: left front of engine compt)
• Transmission internal mode switch (ims)

3.8L VIN 2

3.8L VIN 2, Backup Lamps Wiring Diagram for Buick LaCrosse CXL 2008

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

• (lower left front of engine, on transmission stud, near starter) g113
• Automatic transmission
• Backup lamp sply volt
• Battery positive volt
• Bcm class 2 serial data
• Body control module (bcm) (below left side of dash, left of steering column)
• Chmsl/ bkup fuse 15a
• Computer data lines system
• G301 (inside left door sill, forward of left front seat)
• G302 (in right door sill, forward of right front seat)
• Hot at all times
• I/p fuse block (behind right side of dash)
• J101
• J900
• J901
• Jx407 (in body wiring harness, under passenger seat, at rear carpet)
• Left backup lamp
• Pcm class 2 serial data
• Powertrain control module (pcm) (left side of engine compt, near air cleaner assembly)
• Right backup lamp
• Tr sw sig a
• Tr sw sig b
• Transmission internal mode switch (ims)

5.3L VIN C

5.3L VIN C, Backup Lamps Wiring Diagram for Buick LaCrosse CXL 2008

List of elements for 5.3L VIN C, Backup Lamps Wiring Diagram for Buick LaCrosse CXL 2008:

• (in body wiring harness, under passenger seat, at rear carpet) jx407
• (mounted to bank 1 cylinder head above exhaust manifold) g115
• (or 2500)
• (or 2501)
• (or tan)
• Automatic transmission
• Backup lamp sply volt
• Battery positive volt
• Bcm class 2 serial data
• Body control module (bcm) (below left side of dash, left of steering column)
• Chmsl/ bkup fuse 15a
• Computer data lines system
• G301 (inside left door sill, forward of left front seat)
• G302 (in right door sill, forward of right front seat)
• Gmlan ser data
• Hot at all times
• I/p fuse block (behind right side of dash)
• J116
• J900
• J901
• Left backup lamp
• Right backup lamp
• Tr sig a
• Tr sig b
• Transmission control module (tcm) (except 5.3l: inside air cleaner, left front of engine compt) (5.3l: left front of engine compt)
• Transmission internal mode switch (ims)