STARTING/CHARGING – Buick LaCrosse CXL 2008 – SYSTEM WIRING DIAGRAMS

STARTING/CHARGING

Charging Wiring Diagram for Buick LaCrosse CXL 2008

List of elements for Charging Wiring Diagram for Buick LaCrosse CXL 2008:

• (in i/p wiring harness, left side of dash, 21 cm from lamp assembly switch towards engine compt pass-thru)
• (not used) a
• (or red)
• 3.6l
• 3.6l & 5.3l
• 3.8l
• 5.3l
• Batt +
• Battery
• Battery current sensor (near battery)
• Body control module (bcm) (behind left side of dash, left of steering column)
• Charge indicator
• Clstr fuse 10a
• Computer data lines system
• Current sensor low ref
• Current sensor sig
• Ecm class 2 serial data
• Engine control module (ecm) (3.6l: top of engine) (5.3l: left front of engine compt)
• G102 (3.6l: below right front strut tower) (3.8l: near battery)
• G111 (3.6l: lower left front of engine, on transmission stud, near starter) (3.8l: lower left side of engine)
• G202 (left side of dash, at base of steering column)
• Generator
• Generator field duty cycle sig
• Generator turn on sig
• Gnd
• Ground
• Hot at all times
• I/p class 2 serial data
• I/p dimming voltage ref
• I/p fuse block (behind right side of dash)
• Instrument panel cluster (ipc)
• Interior lights system
• J204
• J211
• Jx205 (clipped to knee bolster panel, right of data link connector)
• Logic
• Pcm class 2 serial data
• Power distribution system
• Powertrain control module (pcm) (left side of engine compt, near air cleaner assembly)
• Red
• Starter

3.6L VIN 7

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

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

• (3.6l: top of engine) (3.8l: left side of engine compt, near air cleaner assembly) (3.8l) powertrain control module (pcm) (3.6l) engine control module (ecm)
• 12-volt ref
• 3.6l
• 3.8l
• Acc
• Battery
• Battery positive
• Body control module (bcm) (behind left side of dash, left of steering column)
• C11
• C12
• Charging circuit
• Class 2 serial data
• Clstr fuse 10a
• Crank relay
• Crank voltage
• Driver information center (dic) display
• G101 (left side of front end upper tie bar, in back of headlamp)
• G102 (3.6l: below right front strut tower) (3.8l: near battery)
• G111 (3.6l: lower left front of engine, on transmission stud, near starter) (3.8l: lower left side of engine)
• Ground distribution system
• Hold- in coil
• Hood ajar switch (w/ remote keyless entry) (front of engine compt)
• Hood ajar switch sig
• Hot at all times
• Hot w/ ign 1 relay energized
• I/p fuse block (behind right side of dash)
• Ignition 1 voltage
• Ignition switch
• Instrument panel cluster (ipc)
• J112
• J200
• Jx205 (clipped to knee bolster panel, right of data link connector)
• Lock
• Logic
• Pcm fuse 15 10a
• Pnk
• Power distribution system
• Pull- in coil
• Red
• Run
• Start
• Start enable rly ctrl
• Starter
• Starter fuse 33 40a
• Underhood fuse block (mounted to right strut tower)

3.8L VIN 2

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

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

• (3.6l: top of engine) (3.8l: left side of engine compt, near air cleaner assembly) (3.8l) powertrain control module (pcm) (3.6l) engine control module (ecm)
• 12-volt ref
• 3.6l
• 3.8l
• Acc
• Battery
• Battery positive
• Body control module (bcm) (behind left side of dash, left of steering column)
• C11
• C12
• Charging circuit
• Class 2 serial data
• Clstr fuse 10a
• Crank relay
• Crank voltage
• Driver information center (dic) display
• G101 (left side of front end upper tie bar, in back of headlamp)
• G102 (3.6l: below right front strut tower) (3.8l: near battery)
• G111 (3.6l: lower left front of engine, on transmission stud, near starter) (3.8l: lower left side of engine)
• Ground distribution system
• Hold- in coil
• Hood ajar switch (w/ remote keyless entry) (front of engine compt)
• Hood ajar switch sig
• Hot at all times
• Hot w/ ign 1 relay energized
• I/p fuse block (behind right side of dash)
• Ignition 1 voltage
• Ignition switch
• Instrument panel cluster (ipc)
• J112
• J200
• Jx205 (clipped to knee bolster panel, right of data link connector)
• Lock
• Logic
• Pcm fuse 15 10a
• Pnk
• Power distribution system
• Pull- in coil
• Red
• Run
• Start
• Start enable rly ctrl
• Starter
• Starter fuse 33 40a
• Underhood fuse block (mounted to right strut tower)

5.3L VIN C

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

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

• 12-volt ref
• Acc
• Battery
• Battery positive
• Body control module (bcm) (behind left side of dash, left of steering column)
• Charging circuit
• Class 2 serial data
• Clstr fuse 10a
• Crank voltage
• Driver information center (dic) display
• Ecm ign fuse 10a
• Engine control module (ecm) (left front of engine compt)
• G101 (left side of front end upper tie bar, in back of headlamp)
• G102
• G111
• Ground distribution system
• Hood ajar switch (w/ remote keyless entry) (front of engine compt)
• Hood ajar switch sig
• Hot at all times
• Hot w/ ign main pcb relay energized
• I/p fuse block (behind right side of dash)
• Ignition 1 voltage
• Ignition switch
• Instrument panel cluster (ipc)
• J112
• J200
• Jx205 (clipped to knee bolster panel, right of data link connector)
• Lock
• Logic
• Pnk
• Red
• Run
• Start
• Start enable rly ctrl
• Starter
• Strtr fuse 40a
• Strtr relay
• Underhood fuse block (mounted to right strut tower)