GROUND DISTRIBUTION – Chevrolet Blazer 2003 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 3) for Chevrolet Blazer 2003

List of elements for Ground Distribution Wiring Diagram (1 of 3) for Chevrolet Blazer 2003:

• (2.2l)
• (2.2l) (right front of eng, under generator)
• (2.2l: eng harn, between c111 & generator breakout, 7 cm from breakout to icm, 4.3l: between icm & map sensor breakout, 8 cm from breakout tp icm)
• (4.3l)
• (not used)
• (not used) f
• (rear of right cylinder head)
• (w/o trip) (w/ trip)
• 2.2l
• 4.3l
• A c2
• A/c compressor clutch
• A/c compressor clutch diode
• A/c low pressure switch
• A/t
• A18
• Ambient temperature sensor (w/ overhead console)
• Bare
• Battery
• Body relay block
• Brake fluid level switch
• Breakout to a/c comp and cutoff switch)
• Cruise control module
• D12
• Data link connector (dlc)
• Daytime running lamps (drl) relay
• Daytime running lamps (drl) relay (zr2)
• Driver information center (dic) (utility)
• Electronic brake control module
• Fuel pump relay
• G100 (lower right radiator support)
• G101
• G102 (right front of eng, under generator)
• G103
• G104 (on left rear of cylinder head (4.3l)
• G105 (2.2l) (right rear of eng, near pcm) (4.3l) (rear of left cylinder head)
• G106 (right frame rail, forward of right front wheel)
• G107 (right front of eng block)
• G108 (right of radiator support, next to battery fuse)
• G110 (near windshield washer pump)
• G111 (left of radiator support, near sp100)
• G112 (right side of radiator support, near sp 101)
• Headlamp power relay
• Heated oxygen sensor (ho2s) (bank 1 sensor 1) shield
• Heated oxygen sensor (ho2s) (bank 1 sensor 2)
• Ignition control module
• Inflatable restraint sensing & diagnostic module
• Instrument panel cluster (ipc)
• Left front fog lamp
• Left front park/ turn signal lamp
• Left horn
• M/t
• Mass airflow (maf) sensor
• Nca
• Park/ neutral position (pnp) switch
• Powertrain control module (pcm)
• Rear window washer pump motor
• Remote control door lock receiver
• Right front fog lamp
• Right front park/ turn signal lamp
• Right horn
• S106 (4.3l: eng harn, 7 cm from breakout to ho2s connector) 2.2l: eng harn, 25 cm from breakout to pcm)
• S140 (eng harn, 13 cm (a/t) or 7 cm (m/t) from vss breakout)
• S140 (eng harn, 13 cm from vss breakout)
• S140 (eng harn, 7 cm from vss breakout)
• S152
• Secondary air injection reactor (air) pump
• Sp100 (in forward lamp harn, to left rear of radiator support)
• Sp101 (in forward lamp harn, to right inside of radiator support)
• Starter relay
• Underhood fuse block
• Utility
• Vehicle speed sensor (vss) shield
• Vehicle speed sensor shield
• W/ a/c
• W/ k18
• W/ rke
• Windshield washer fluid pump

Ground Distribution Wiring Diagram (2 of 3) for Chevrolet Blazer 2003

List of elements for Ground Distribution Wiring Diagram (2 of 3) for Chevrolet Blazer 2003:

• (2.2l) (4.3l)
• (behind right side of dash, between c203 &
• (fleetside)
• (fleetside) right license lamp
• (not used)
• (pickup: rear frame rail crossmember, near fuel filler neck ground strap, utility: left rear frame rail)
• (sportside) (fleetside)
• (sportside) license lamp
• 4wd
• A12
• Air temperature actuator
• Ashtray lamp
• Automatic transmission shift level position indicator lamp
• Automatic transmission shift lock actuator
• B12
• Bare
• Blower motor (man a/c)
• Blower motor relay (man a/c)
• Body control module
• Body relay block
• Breakout)
• Cigar lighter
• Courtesy lamp relay
• Crew cab only
• Data link connector (dlc)
• Door lock relay
• Door unlock relay
• Driver door handle switch
• Driver door jamb switch
• Driver door unlock relay
• Driver seat belt switch
• Ex 4 door utility w/ liftgate
• Fog lamp switch
• From s427 (diagram 3 of 3)
• Front passenger door jamb switch
• Fuel pump & sender
• G117 (left rear of eng compt, near cruise control module)
• G200 (behind upper left end of dash)
• G201 (behind upper left end of dash)
• G203
• G204
• G207 (near multi- function switch)
• G402
• G422
• G475 (left rear frame rail, near sp 402)
• Headlamp ground relay
• Headlamp switch
• Hvac control assembly
• Ignition key alarm switch
• Ignition lock cylinder control actuator
• Inflatable restraint i/p module disable switch
• Inflatable restraint steering wheel module
• Instrument panel cluster (ipc)
• Left back-up lamp
• Left license lamp
• Left rear marker lamp
• Left rear park/turn signal lamp
• Left steering wheel control switch
• Nca
• Park switch
• Pickup
• Pickup & utility w/o auto a/c
• Radio
• Rear wiper/ washer switch & endgate/ liftgate window release switch
• Relay breakout)
• Right back-up lamp
• Right license lamp
• Right rear marker lamp
• Right rear park/turn signal lamp
• Right steering wheel control switch
• S134
• S335 4 door utility
• S423 (in chassis harn, 8 cm from fuel pump & sender assembly breakout)
• Sp202 (left center of dash)
• Sp203 (front of ashtray)
• Sp401 (rear of right frame rail)
• Sp402 (rear of left frame rail)
• Splice pack)
• Sportside pickup
• Tan
• Tow haul switch
• Trailer wiring provision
• Transfer case front propshaft speed sensor shield
• Transfer case rear propshaft speed sensor shield
• Transfer case shift control switch
• Utility
• Utility w/ radio controls
• Utility w/o radio controls
• Vehicle speed sensor (vss) shield
• W/ column shift
• W/ floor shift
• Windshield wiper motor

Ground Distribution Wiring Diagram (3 of 3) for Chevrolet Blazer 2003

List of elements for Ground Distribution Wiring Diagram (3 of 3) for Chevrolet Blazer 2003:

• (8-way pwr seat)
• (auxiliary power tray harn, near in-line i/p connector)
• (behind right side of dash between c203 & splice pack)
• (dome harn, between inside air temperature sensor & left vanity mirror lamp breakout, 5 cm from breakout to sensor)
• (left door harn, between door speaker & door lock & side window switch breakout)
• (left power seat harn, 15 cm from c317)
• (others)
• (pickup b
• (utility) (pickup)
• (w/ mem) h d (6-way pwr seat)
• 4 door
• 4 door only
• Audio amplifier
• Auxiliary power outlet
• B a
• C10
• Center high mount stop lamp
• Center high mount stop lamp resistor
• Crew cab
• D12
• D13
• Dome lamp
• Driver door lock & side window switch
• Driver door lock cylinder switch
• Driver heated seat assembly
• Driver lumbar switch
• Driver memory seat module
• Driver outside rear view mirror
• Driver seat adjuster switch
• Driver seat belt switch
• Except crewcab)
• Front passenger door lock & side window switch
• Front passenger door lock & window switch
• Front passenger door lock cylinder switch
• Front passenger heated seat assembly
• Front passenger outside rear view mirror
• Front passenger seat adjuster switch
• Front passenger seat belt switch
• Front passenger seat lumbar switch
• G202 (behind upper left end of dash)
• G204
• G205
• G420 (utility: right rear corner of vehicle, near c402, pickup: on right rear frame rail)
• G450 (on left rear of vehicle, near c403)
• Inside air temperature sensor assembly
• Inside rear view mirror
• Left back-up lamp
• Left rear door jamb switch
• Left rear park/ turn signal lamp
• Left rear tail/ stop lamp
• Left vanity mirror lamp
• Liftgate release actuator
• Nca
• Outside rear view folding mirror switch
• Outside rear view mirror switch
• Pickup except crewcab
• Pickup w/ power door locks w/o keyless entry
• Rear window defogger grid
• Rear window wiper cutout & liftglass ajar jamb switch
• Rear window wiper motor controller
• Right back-up lamp
• Right rear door jamb switch
• Right rear park/ turn signal lamp
• Right rear tail/ stop lamp
• Right vanity mirror lamp
• S269
• S302
• S313
• S320 (right power seat harn, 15 cm from c315)
• S404 (body harn, 10 cm from high mount stop lamp breakout)
• S419 (left tail lamp jpr harn, 8 cm from c403, near taillamp)
• S420 (right tail lamp jpr harn, 8 cm from c402)
• S427 (lr body harn, near left rear taillamp breakout)
• S501
• S601 (in right door harn)
• Sp204 strapped to body harn, in center front of dash, left of sp 200)
• Sunroof control module
• To sp202 (diagram 2 of 3)
• Transfer case shift control module (np1)
• Transfer case shift control module (np8)
• Turn signal/ hazard flasher module
• Utility
• Utility & crew cab
• Utility & crewcab
• Utility w/ c25
• Utility w/ zm8
• Utility, crew cab & maxi-cab
• W/ enhanced performance audio
• W/ foldilng power mirrors
• W/ heated seats
• W/ mirror lamps
• W/ power door locks except pickup w/o keyless entry
• W/o mirror lamps
• Window lockout switch