GROUND DISTRIBUTION – Buick LeSabre Custom 2003 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Buick LeSabre Custom 2003

List of elements for Ground Distribution Wiring Diagram (1 of 4) for Buick LeSabre Custom 2003:

• A/c compressor clutch
• A/c compressor clutch diode
• Accy relay
• Automatic transaxle
• Brake fluid level switch
• Coil
• Contact
• Cool fan s/p relay (series/ parallel)
• Cruise control module
• Drl relay
• Electronic brake control module (ebcm)
• Engine oil level switch
• F11
• G100 (left side of eng)
• G101
• G102 (lower front of eng)
• G103 (on inner body panel)
• G104 (on top of transmission)
• G105 (behind power steering pump)
• G106 (near left strut tower)
• G107 (in front of underhood fuse block)
• Heated oxygen sensor (ho2s) (b1,s1)
• Heated oxygen sensor (ho2s) (b1,s2)
• Horn assembly
• Ign-1 relay
• Ignition control module (icm)
• Internal mode switch
• Left cooling fan
• Left cornering lamp
• Left front park/turn signal lamp
• Left low beam headlamp
• Mass air- flow (maf) sensor
• Nca
• Powertrain control module (pcm)
• Right front park/turn lamp
• S108 (in engine harn, 18 cm from a/c clutch connector breakout)
• S122 (in forward lamp harness 17 cm from c108)
• Splice pack sp100
• Splice pack sp105
• Splice pack sp106
• Underhood fuse block (right front side of engine compartment)
• Underhood lamp
• W/cornering lamps
• W/o cornering lamps
• Windshield washer pump
• Windshield wiper motor

Ground Distribution Wiring Diagram (2 of 4) for Buick LeSabre Custom 2003

List of elements for Ground Distribution Wiring Diagram (2 of 4) for Buick LeSabre Custom 2003:

• (in i/p harn, 6.5 cm from radio breakout)
• A16
• Auto a/c
• Auto trans shift lock control actuator
• B16
• Blower control module
• D16
• Dash integration module (dim)
• Data link connector (dlc) (partial)
• Driver door lock switch
• Driver door module (ddm)
• Driver door switch assembly (ddsa)
• Driver heated seat switch
• Driver information display switch
• Front cigar lighter
• G200 (on left front dor pillar)
• G201 (on right front door pillar)
• G300 (on forward crossmember)
• Headlamp switch
• Heads up display (hud) dimmer switch
• Heads up display (hud) switch
• Heater & a/c control
• I/p compartment lamp switch
• If equipped
• Inflatable restraint steering wheel module coil
• Instrument panel cluster (ipc)
• Instrument panel integration module (ipm)
• Key buzzer switch
• Left front door lock actuator
• Left front door lock cylinder switch
• Left side steering wheel controls
• Manual a/c
• Memory personal- ization function switch
• Nca
• Passenger door module (pdm)
• Radio
• Rear compartment lid release switch
• Right side steering wheel controls
• S203 (in i/p harn, 17.5 cm from ipm breakout)
• S205 (in i/p harn, 13.5 cm from hvac breakout)
• S208
• S214 (in steering wheel harn, 5 cm from sir coil)
• S225 (in steering column harness)
• S226 (in steering column harness)
• S253
• S500 (in left front door trim harn, 19 cm from 503 breakout)
• Splice pack sp200
• Splice pack sp300
• Steering column fuse holder
• Tcc/cruise release switch
• Traction control switch
• Turn signal multifunction switch
• Turn signal/ hazard flasher lamp module
• Vehicle theft deterrent control module

Ground Distribution Wiring Diagram (3 of 4) for Buick LeSabre Custom 2003

List of elements for Ground Distribution Wiring Diagram (3 of 4) for Buick LeSabre Custom 2003:

• (under left rear seat) rear fuse block
• (under right side of rear seat) g305
• 6 way seats
• 8 way seats
• A11
• A18
• B12
• Battery
• D (or e)
• Dash integration module (dim)
• Driver heated seat module
• Driver memory seat module
• Driver seat adjuster switch
• Driver seat recline switch
• Floor ctsy lmp relay
• Front auxiliary power outlet
• Front passenger heated seat module
• Front passenger seat adjuster switch
• Front passenger seat recline switch
• Fuel door lock relay
• Fuel door unlock relay
• Fuel pump relay
• G301 (on forward crossmember)
• G302 (under left side of rear seat)
• G303 (under right front seat)
• G310 (on right "c" pillar)
• G404 (behind left rear "c" pillar)
• If equipped
• Ign-1 relay
• Inflatable restraint sensing & diagnostic module (sdm)
• Left rear door module (lrdm)
• Nca
• Onstar cellular antenna
• Rear auxiliary power outlet
• Rear window defogger
• Remote control door lock receiver (rcdlr)
• Right rear door module (rrdm)
• S315 (in left seat harn, 6.5 cm from left front seat 6.5 cm from left heated seat module connector breakout)
• S316
• S321 (in left seat harn, 9.5 cm front seat, 9.5 cm from left seat harn clip)
• S322 (in right seat harn, under right front seat, 9.5 cm from right right seat harn clip)
• S324 (w/heated seats) (in left seat harness, under left front seat 9.5 cm from left seat harn clip)
• Splice pack sp301
• Splice pack sp302
• Vehicle communication unit (vcu)
• W/2 way power seats
• W/6 & 8 way power seats
• W/heated seats
• W/memory & lumbar seats, auto dimming inside rear view & outside mirrors
• W/o heated seats
• W/o memory & lumbar seats, auto dimming inside rear view & outside mirrors

Ground Distribution Wiring Diagram (4 of 4) for Buick LeSabre Custom 2003

List of elements for Ground Distribution Wiring Diagram (4 of 4) for Buick LeSabre Custom 2003:

• (w/ garage door opener)
• (w/o garage door opener)
• Automatic level control air compressor
• Center high mounted stop lamp (chmsl)
• Fuel tank unit
• G401 (on lower right corner of trunk)
• G402 (on lower left corner of trunk)
• Garage door opener
• If equipped
• Inside rear view mirror
• Left tail/ stoplamp
• Left back-up lamp
• Left rear reading lamp switch
• Left tail/ stoplamp
• Left vanity mirror
• License lamp
• Marker lamp
• Outside moisture sensor
• Overhead console cigar lighter
• Overhead console reading lamp
• Rear compartment lid release actuator
• Rear integration module (rim)
• Right back-up lamp
• Right cornering lamp
• Right high beam headlamp
• Right low beam headlamp
• Right rear reading lamp switch
• Right rear side marker lamp
• Right rear turn/stop taillamp
• Right tail/ stoplamp
• Right vanity mirror
• S100 (in forward lamp harn, 4 cm from g103 breakout)
• S121 (in forward lamp harn, 17 cm from c109)
• S329 (in headliner harn, 15.6 cm from c329)
• S334
• S360
• S411 (in rear compt lid harn, 34.5 cm from p410 breakout)
• Splice pack sp401
• Splice pack sp402
• Sunroof module
• Vehicle interface unit (viu)
• W/ cornering lamps
• W/o cornering lamps