GROUND DISTRIBUTION – Buick Lucerne CXS 2008 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Buick Lucerne CXS 2008

List of elements for Ground Distribution Wiring Diagram (1 of 4) for Buick Lucerne CXS 2008:

• (3.8l) ignition control module (icm)
• (4.6l) a/c compressor clutch
• (4.6l) secondary air injection (air) pump
• (if equipped) sunroof control module
• (on right front of engine compartment, forward of strut tower) underhood fuse block
• (w/ magnetic ride control) electronic suspension control (esc) module
• (w/ side obstacle detection sensor indicator) left side object sensor
• (w/ side obstacle detection sensor indicator) right side object sensor
• 14 cm (6 in) from branch for throttle body assembly)
• 3.8l & pzev
• A x2
• Air pump relay
• Automatic level control (alc) compressor
• Automatic transmission
• Battery
• Battery current sensor
• Body control module (bcm)
• Electronic brake control module (ebcm)
• Engine control module (ecm)
• Engine oil pressure (eop) switch
• Fuel pump & sender assembly
• G100 (4.6l) (below exhaust gas recirculation (egr) valve)
• G101 (left front corner of engine compartment)
• G112 (4.6l) (lower left rear of engine)
• G114 (lower left rear of engine)
• G115 (lower left rear of engine)
• G303 (below right side of rear seat)
• G306 (at left "c" pillar)
• G307 (at right "c" pillar)
• G403 (right front wall of luggage compartment)
• Ign relay
• 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
• J106 (in engine harness, approximately 7 cm (3 in) from branch for throttle body assembly)
• J108 (in engine harness, approximately 10 cm (4 in) from breakout for automatic transmission)
• J133 (in even bank ignition coil harness, between x139 & ignition coil/module 2)
• J144
• J385 (in body harness, approximately 10 cm (4 in) from g306)
• J402 (in rear fascia harness, approximately 7 cm (3 in) from breakout for license lamps)
• Keyless entry antenna
• Left license lamp
• Left tail lamp
• Mass air flow (maf)/ intake air temperature (iat) sensor
• Nca
• Rear window defogger
• Right license lamp
• Right tail lamp
• Right tail/ stop & turn signal lamp
• Secondary air injection (air) pump
• Solenoid
• Strtr relay 30
• Transmission control module (tcm)
• Windshield wiper motor
• Wpr hi pcb relay
• X1 b
• X2 e2
• X3 c6

Ground Distribution Wiring Diagram (2 of 4) for Buick Lucerne CXS 2008

List of elements for Ground Distribution Wiring Diagram (2 of 4) for Buick Lucerne CXS 2008:

• (on right front of engine compartment, forward of strut tower) underhood fuse block
• (pzev) secondary air injection (air) pump solenoid
• (w/ remote keyless entry start/ extended range) hood ajar switch
• 12 cm (5 in) from breakout for x800)
• A/c compressor clutch
• Approximately 6 cm (2 in) from breakout for a/t shift lock control solenoid)
• Automatic transmission
• Automatic transmission shifter lever
• Blower motor control module
• Body control module (bcm)
• C x1
• Center console accessory power outlet
• Cigar lighter
• D x2
• Engine oil level (eol) switch
• Engine oil pressure (eop) switch
• Fan 3 relay 32
• For i/p compartment lamp)
• Front passenger door module (fpdm)
• G104 (right front corner of engine compartment)
• G112 (3.8l) (lower left rear of engine)
• G302 (under right front passenger's seat)
• G304 (under right front passenger's seat)
• Headlamp switch
• Horn assembly
• I/p compartment lamp
• Ign relay
• Inflatable restraint sensing & diagnostic module (sdm)
• J383 (in center console harness, between breakout for a/t shift lock control solenoid & breakout for auxiliary hvac control module)
• J387
• Left front fog lamp
• Left headlamp
• Mass air flow (maf)/ intake air temperature (iat) sensor
• Nca
• Powertrain control module (pcm)
• Right engine cooling fan
• Right front door courtesy lamp
• Right front fog lamp
• Right headlamp
• Right rear door latch
• Right rear door window switch
• Throttle actuator control (tac) module
• To passenger seat adjuster switch (diagram 3 of 4)
• Traction control switch
• W/ custom bucket seat
• Windshield washer fluid level switch
• Windshield washer fluid pump
• Windshield washer solvent heater
• Wpr pcb relay

Ground Distribution Wiring Diagram (3 of 4) for Buick Lucerne CXS 2008

List of elements for Ground Distribution Wiring Diagram (3 of 4) for Buick Lucerne CXS 2008:

• (w/ front cooling seat heater) seat climate control module
• (w/ memory seat adjuster) memory seat module (msm)
• (w/o custom bucket seat) traction control switch
• Ambient light sensor
• Approximately 8 cm (4 in) from breakout for inflatable restraint seat position sensor)
• Ashtray lamp
• Brake fluid level switch
• Cigar lighter
• Data link connector (dlc)
• Driver door module (ddm)
• Driver information display switch
• Driver seat adjuster switch
• From splice j387 (diagram 2 of 4)
• Front accessory power outlet
• G300 (under driver's seat)
• Hazard switch
• Heated steering wheel control module
• Horn switch
• Hvac control module
• Ignition lock cylinder control solenoid
• Inflatable restraint passenger presence system (pps) module
• Inflatable restraint steering wheel module coil
• Inside air tempe- rature sensor
• Instrument panel cluster (ipc)
• J203 (in i/p harness, approximately 36 cm (14 in) from breakout for hvac module)
• J306 (in right front seat harness, approximately 7 cm (3 in) from breakout for passenger seat belt switch)
• Left front door courtesy lamp
• Left steering wheel control switch
• Lighter)
• Nca
• Passenger seat adjuster switch
• Passenger seat lumbar adjuster switch
• Restraint steering wheel module coil)
• Right steering wheel control switch
• Sunload sensor
• Theft deterrent module (tdm)
• Turn signal/ multifunction switch
• W/ 8-way passenger seat adjuster
• W/ automatic, auxiliary temperature air conditioner
• W/ electronic controls front air conditioner
• W/ heated nozzles
• W/o 8-way passenger seat adjuster
• W/o custom bucket seat
• X205 & turn signal/multifunction switch connector c4)
• X276
• X276 d
• X277
• X277 d

Ground Distribution Wiring Diagram (4 of 4) for Buick Lucerne CXS 2008

List of elements for Ground Distribution Wiring Diagram (4 of 4) for Buick Lucerne CXS 2008:

• (below left side of rear seat) rear fuse block
• (if equipped) windshield outside moisture sensor
• (w/ digital audio system s-band) digital radio receiver
• (w/ lane departure warning) vehicle direction alert alarm warning module
• (w/ onstar) vehicle communication interface module (vcim)
• (w/ rear parking assist) rear object sensor control module
• (w/ suspension system) automatic level control (alc) module
• Audio amplifier
• Center high mounted stop lamp (chmsl)
• Fuel pump relay 59
• G110 (ground strap to generator)
• G111 (in engine compartment, ground strap to right frame rail)
• G301 (under left rear seat)
• G305 (under driver's seat)
• G402 (left rear of luggage compartment)
• Garage door opener transmitter
• Inflatable restraint i/p module indicator
• Inside rearview mirror
• J312 (in headliner harness, approximately 10 cm (4 in) from branch for x321)
• J313
• J365 (in body harness, approximately 5 cm (2 in) from audio amplifier connector c1)
• Left rear door latch
• Left rear door window switch
• Left sunshade
• Left tail/stop & turn signal lamp
• Lock relay 63
• Radio
• Rap-hc relay 70
• Rear compartment lid latch
• Remote control door lock receiver (rcdlr)
• Right sunshade
• Rr defog relay 52
• Run relay 64
• Sunroof switch
• Trk rel relay 67
• Unlock relay 62
• W/ premium audio branded & amplifier