GROUND DISTRIBUTION – Buick LaCrosse CXL 2005 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 3) for Buick LaCrosse CXL 2005

List of elements for Ground Distribution Wiring Diagram (1 of 3) for Buick LaCrosse CXL 2005:

• (3.6l) engine control module (ecm)
• (mounted to right strut tower) underhood fuse block
• (sulev) secondary air injection (air) control solenoid valve/ pressure sensor bank 2
• 3.6l
• 3.8l
• A/c clu diode
• A/c compressor clutch
• Automatic transaxle
• B b
• B11
• Battery
• Body control module (bcm)
• C100
• Electronic brake control module (ebcm)
• Engine oil level switch
• Engine oil pressure (eop) switch
• Except sulev
• Fan 2 relay
• Frame rail, behind bumper)
• From g115)
• Fuel pp relay
• G100 (in back of right headlamp on frame)
• G101 (left side of front end upper tie bar, in back of headlamp)
• G102 (3.6l) (below right front strut tower)
• G102 (3.8l) (near battery)
• G103 (redundant ground from ecm to even bank cylinder head)
• G111 (3.6l) (lower left front of engine, on
• G111 (3.8l) (lower left side of engine)
• 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)
• Headlamp module
• Hood ajar switch
• Horn assembly
• Ign 1 relay
• K14
• Left front fog lamp
• Left front marker lamp
• Left front park/ turn signal lamp
• Left high beam headlamp
• Left low beam headlamp
• Mass air flow (maf) sensor/ intake air temperature (iat)
• Powertrain control module (pcm)
• Right cooling fan
• Right front fog lamp
• Right front marker lamp
• Right front park/ turn signal lamp
• Right high beam headlamp
• Right low beam headlamp
• S101 (in engine wiring harness, in left front of engine compt, 5 cm from pcm breakout)
• S102 (in engine harn, top of engine, 5 cm from throttle actuator control module breakout)
• S111
• S113
• S116
• S124 (forward lamp wiring harness, behind right headlamp, 5 cm from c142 breakout)
• Secondary air injection (air) pump (sulev)
• Sulev
• Throttle actuator control (tac) module
• Transmission control module (tcm)
• Transmission internal mode switch (ims)
• Transmission stud)
• Windshield washer fluid level switch
• Windshield washer fluid pump

Ground Distribution Wiring Diagram (2 of 3) for Buick LaCrosse CXL 2005

List of elements for Ground Distribution Wiring Diagram (2 of 3) for Buick LaCrosse CXL 2005:

• (3.8l) ignition control module (icm)
• (in on-engine harness)
• (top rear of cylinder head)
• (w/ lumbar seats) driver seat lumbar switch
• 3.6l
• A c2
• A/t shift lock control solenoid
• B c2
• Body control module (bcm)
• C275
• C277
• Cruise control switch
• Cylinder head)
• Driver back heated seat element
• Driver door lock
• Driver door lock switch
• Driver heated seat relay
• Driver seat adjuster switch
• Driver seat belt switch
• Driver window switch
• Drivers outside rearview mirror motor
• Electronic compass module
• From g301 breakout)
• G112 (in right side of engine, on ignition control module bracket)
• G130 (near ignition coils 1, 3, & 5)
• G131 (near ignition coils 2, 4, & 6)
• G201 (below dash, bolted to dash carrier)
• G301 (inside left door sill, forward of left front seat)
• Harness)
• Horn switch
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Inflatable restraint steering wheel module
• Inflatable restraint steering wheel module coil
• Left backup lamp
• Left license lamp
• Left rear door lock
• Left rear marker lamp
• Left steering wheel controls
• Left tail/stop & turn signal lamp
• Logic
• Lower left tail lamp
• Nca
• Outside rearview mirror switch
• Passenger back heated seat element
• Passenger heated seat relay
• Passenger seat adjuster switch
• Passenger seat belt switch
• Prndl lamp
• Rear object sensor control module
• Rear window defogger grid
• Right license lamp
• Right steering wheel controls
• S130
• S131
• S215 (in steering column, harn, 4.5 cm from from windshield wiper/washer switch breakout)
• S330 (driver seat wiring harness, below driver seat, 4.5 cm to seat belt switch breakout)
• S333 (front passenger seat harness, below seat, 7 cm from seat belt pretensioner breakout)
• S500 (in driver's door, above door speaker)
• Upper left tail lamp
• Voice recorder/ cruise assembly switch
• W/ accessory steering wheel control
• W/ console shift
• W/ heated seats
• W/ park assist
• W/ power seats
• W/o power seats
• Windshield wiper motor

Ground Distribution Wiring Diagram (3 of 3) for Buick LaCrosse CXL 2005

List of elements for Ground Distribution Wiring Diagram (3 of 3) for Buick LaCrosse CXL 2005:

• (automatic a/c) inside air temperature sensor
• (digital audio system s-band) digital radio receiver
• (in dash harn, at center of dash)
• (mounted to right strut tower) underhood fuse block
• (right front door wiring harness, 25.5 cm from c304 breakout)
• A/t shift lock control actuator
• A12 c1
• A15
• A6 c1
• Ambient light sensor
• Audio amplifier
• Automatic a/c
• Auxiliary power outlet
• B8 c1
• Blower motor control processor
• Body control module (bcm)
• Brake fluid level switch
• C1 b5
• Center high mounted stop lamp (chmsl)
• Cigar lighter
• Column shift
• Console shift
• Custom 9 speaker system
• D c1
• Data link connector (dcl)
• Data link connector (dlc)
• Driver information center (dic)
• E15
• F c1
• F14
• F7 c2
• Front passenger door lock
• Front passenger door lock switch
• Front passenger window switch
• Fuel pump & sender assembly
• G c2
• G200 (center of dash cross beam, behind radio)
• G202 (left side of dash, at base of steering column)
• G302 (right door sill, forward of right front seat)
• Garage door opener
• Gps vehicle communication system
• Hvac control module
• I/p compartment lamp switch
• I/p fuse block (behind left side of dash)
• 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)
• Inside rearview mirror
• Instrument panel cluster (ipc)
• Lamp switch assembly
• Left dome/ reading lamp
• Left i/p courtesy lamp
• Left vanity mirror lamp
• Lower right tail lamp
• Manual a/c
• Nca
• Overhead console reading lamps
• Passenger outside rearview mirror motor
• Radio
• Rear compartment lid latch
• Remote control door lock receiver (rcdlr)
• Right backup lamp
• Right dome/ reading lamp
• Right i/p courtesy lamp
• Right rear door lock
• Right rear marker lamp
• Right tail/stop & turn signal lamp
• Right vanity mirror lamp
• S211
• S213
• S214
• S300 (in floor harn, at right front kick panel)
• S309
• S390 (in roof harness, near center of windshield header, 20 cm from dome/ reading lamp right breakout)
• S406 (body wiring harness, below rear window panel, 9 cm from c356 breakout)
• S604
• S605 (right front door wiring harn, 5 cm from door lock switch breakout)
• Sunload sensor assembly
• Sunroof module
• Theft deterrent exciter module
• Theft led
• Turn signal/ multifunction switch
• Upper right tail lamp
• Vehicle communication interface module (vcim)
• Windshield wiper motor
• Wiper hi relay 44
• Wiper relay 45