GROUND DISTRIBUTION – Buick LaCrosse CXL 2008 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 3) for Buick LaCrosse CXL 2008

List of elements for Ground Distribution Wiring Diagram (1 of 3) for Buick LaCrosse CXL 2008:

• (3.6l) engine control module (ecm)
• (3.8l) ignition control module (icm)
• (5.3l) right engine cooling fan
• (california pzev) secondary air injection (air) shutoff valve
• (if equipped) right front fog lamp
• (mounted to right strut tower) underhood fuse block
• (w/ abs) electronic brake control module (ebcm)
• (w/ remote keyless entry) hood ajar switch
• 3.6l
• 3.8l
• 3.8l/3.6l
• 5.3l
• A/c clu diode
• A/c clutch diode
• A/c compressor clutch
• Automatic transmission
• Automatic transmission internal mode switch (ims)
• B b
• B11
• Battery
• Body control module (bcm)
• C11
• California pzev
• E15
• Engine oil level (eol) switch
• Engine oil pressure (eop) switch
• Except california pzev
• Fan 2 relay 46
• Fuel pp relay 41
• G100 (in back of right headlight on frame)
• G101 (left side of front end upper tie bar, in back of headlight)
• G102 (3.6l: below right front strut tower) (3.8l: near battery)
• G103 (redundant ground from ecm to even bank cylinder head)
• G111 (3.6l: lower left front of engine, on transmission stud, near starter) (3.8l: lower left side of engine)
• G112 (in right side of engine, on ignition control module bracket)
• G113 (lower left front of engine, on transmission stud, near starter)
• G115 (mounted to bank 1 cylinder head above exhaust manifold)
• G115 (on transmission stud, to right of starter)
• Harness, 20 cm from g115)
• Hdm beam module 35
• Horn assembly
• Ign 1 relay 37
• J101 (in engine wiring harness, in left front of engine compartment, 5 cm from breakout to pcm, towards g113)
• J102 (in engine wiring harness. top of engine, 5 cm from breakout to throttle actuator control (tac) module, towards pcm)
• J112 (in forward lamp harness, 19 cm from left front headlight assembly)
• J124 (in forward lamp wiring harness, behind right headlight, 5 cm from breakout to x142, towards horn assembly)
• J125
• J127 (in left headlight wiring harness)
• Jumper wiring harness, 5 cm from breakout to left park/turn signal lamp, toward left front fog lamp)
• K14
• Left front fog lamp
• Left front marker lamp
• Left high beam headlamp
• Left low beam headlamp
• Left park/ turn signal lamp
• Mass air flow (maf)/ intake air temperature (iat) sensor
• Powertrain control module (pcm)
• Right engine cooling fan
• Right front marker lamp
• Right high beam headlamp
• Right low beam headlamp
• Right park/ turn signal lamp
• Secondary air injection (air) pump
• Throttle actuator control (tac) module
• Transmission control module (tcm)
• Windshield washer fluid level switch
• Windshield washer fluid pump
• Wiper relay 45
• Wiring harness)
• X100

Ground Distribution Wiring Diagram (2 of 3) for Buick LaCrosse CXL 2008

List of elements for Ground Distribution Wiring Diagram (2 of 3) for Buick LaCrosse CXL 2008:

• (if equipped) driver seat adjuster switch
• (if equipped) passenger seat adjuster switch
• (in on-engine wiring harness, 15.25 cm from g130)
• (in on-engine wiring harness, 30.5 cm from g130)
• (in steering column wiring harness)
• (mounted to right strut tower) underhood fuse block
• (w/ accessory steering wheel control) left steering wheel control switch
• (w/ accessory steering wheel control) right steering wheel control switch
• (w/ lumbar seats) driver seat lumbar switch
• 3.6l
• 5.3l
• A/c compressor clutch
• Automatic transmission shift lock control solenoid
• Body control module (bcm)
• Connector x355)
• Driver back heated seat element
• Driver door lock
• Driver door lock switch
• Driver heated seat relay
• Driver outside rearview mirror
• Driver seat belt switch
• Driver window switch
• Electronic compass module
• Engine control module (ecm)
• Fuel/ pump relay
• G112 (in right side of engine, on ignition control module bracket)
• G113 (5.3l) (lower left front of engine, on transmission stud, near starter)
• G130 (on cylinder head, front of engine)
• G131 (on cylinder head)
• G201 (below dash, bolted to dash carrier)
• G301 (inside left door sill, forward of left front seat)
• Hdm
• Horn switch
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil/ module 1
• Ignition coil/ module 2
• Ignition coil/ module 3
• Ignition coil/ module 4
• Ignition coil/ module 5
• Ignition coil/ module 6
• Ignition coil/ module 7
• Ignition coil/ module 8
• Ignition main pcb relay
• Inflatable restraint steering wheel module coil
• J130
• J130 (in on-engine wiring harness, 15.25 cm from g130)
• J131
• J131 (in on-engine wiring harness, 30.5 cm from g130)
• J215 (in steering column wiring harness)
• J330 (in driver seat wiring harness, below driver seat, 4.5 cm from breakout to seat belt switch, towards seat adjuster switch-driver)
• J333 (in front passenger seat wiring harness below front passenger seat, 7 cm from breakout to seat belt pretensioner-rf, towards heated seat relay- front passenger)
• J401
• J500 (in left front door wiring harness, 8.5 cm from breakout to window motor)
• J900 (in left taillight wiring harness)
• Left backup lamp
• Left license lamp
• Left rear door lock
• Left rear marker lamp
• Left tail/stop & turn signal lamp
• Lower left tail lamp
• Mass air flow (maf)/ intake air temperature (iat) sensor
• Nca
• Outside rearview mirror switch
• Passenger back heated seat element
• Passenger heat seat relay
• Passenger seat belt switch
• Prndl lamp
• Rear object sensor control module
• Rear window defogger grid
• Right license lamp
• Upper left tail lamp
• W/ console shift
• W/ heated seats
• W/ parking assist
• W/ power seats
• W/o power seats
• Wiper pcb relay
• X2 a
• X2 b
• X275
• X277

Ground Distribution Wiring Diagram (3 of 3) for Buick LaCrosse CXL 2008

List of elements for Ground Distribution Wiring Diagram (3 of 3) for Buick LaCrosse CXL 2008:

• (automatic a/c) inside air temperature sensor
• (if equipped) inside rearview mirror (isrvm)
• (if equipped) right vanity mirror lamp
• (in right front door wiring harness, 25.5 cm from breakout to inline connector x304, towards window motor -front passenger)
• (mounted to right strut tower) underhood fuse block
• (w/ digital radio) digital radio receiver
• A12 x1
• A15
• Ambient light sensor
• Audio amplifier
• Automatic a/c
• Automatic transmission shift lock control solenoid
• Auxiliary power outlet
• B5 x1
• B8 x1
• Blower motor control module
• Body control module (bcm)
• Brake fluid level switch
• Center high mounted stop lamp (chmsl)
• Cigar lighter
• Column shift
• Console shift
• Custom 9 speaker system
• D x1
• Data link connector (dlc)
• Driver information center (dic) switch
• F14
• F7 x2
• Fuel pump & sender assembly
• G200 (behind left side of dash knee bolster, at base of steering column)
• G202 (left side of dash, at base of steering column)
• G302 (in right door sill, forward of right front seat)
• Garage door opener (gdo)
• Hvac control module
• I/p compartment lamp switch
• I/p fuse block (behind right side of dash)
• I/p multi- function switch
• If equipped
• Ignition lock cylinder control actuator
• Ignition switch
• Inflatable restraint front passenger presence system (pps) module
• Inflatable restraint passenger air bag on/off indicator
• Inflatable restraint sensing & diagnostic module (sdm)
• Instrument panel cluster (ipc)
• J211 (in i/p wiring harness, below center of dash, 10 cm from breakout to data link connector towards brake pedal position sensor)
• J213 (in i/p wiring harness, below center of dash, 5 cm from breakout to data link connector towards brake pedal position sensor)
• J300
• J309
• J390 (in roof wiring harness, near center of windshield header 20 cm from courtesy/reading lamp-right breakout, towards inside rearview mirror)
• J406 (in body wiring harness, below center of rear window panel, 9 cm from breakout to inline connector x356, towards g302)
• J604
• J605 (in right front door trim wiring harness, 5 cm from breakout to door lock switch -front passenger, towards inline connector x304)
• J901 (in right taillight wiring harness)
• Left front courtesy/ reading lamp
• Left i/p courtesy lamp
• Left vanity mirror lamp
• Lower right tail lamp
• Manual a/c
• Nca
• Overhead console courtesy/ reading lamps
• Passenger door lock
• Passenger door lock switch
• Passenger outside rearview mirror
• Passenger window switch
• Radio
• Rear compartment lid latch
• Remote control door lock receiver (rcdlr)
• Right backup lamp
• Right front courtesy/ reading lamp
• Right i/p courtesy lamp
• Right rear door lock
• Right rear marker lamp
• Right tail/stop & turn signal lamp
• Sunload sensor
• Sunroof motor
• Theft deterrent module (tdm)
• Turn signal/ multi-function switch
• Upper right tail lamp
• Vehicle communication interface module (vcim)
• W/ front vanity inside mirror
• W/ garage door opener
• W/ onstar
• W/o garage door opener
• Windshield wiper motor
• Wiper hi relay 44
• Wiper relay 45
• X1 a6
• X1 f
• X2 g