All Wiring Diagrams for Chevrolet Blazer 2005 model

AIR CONDITIONING

Compressor Wiring Diagram for Chevrolet Blazer 2005

List of elements for Compressor Wiring Diagram for Chevrolet Blazer 2005:

• (in engine harness, between rear heated oxygen sensors & body harness breakouts, 7 cm from breakout to heated oxygen sensor connector) s106
• (on rear of right cylinder head) g102
• (on rear of right cylinder head) g103
• A/c
• A/c comp rly ctrl
• A/c compressor clutch
• A/c compressor clutch diode (in engine harness, 8 cm from breakout to a/c high pressure switch)
• A/c compressor clutch relay
• A/c fuse 10a
• A/c high pressure switch (on rear of a/c compressor)
• A/c low pressure switch (at a/c accumulator)
• A/c low sw signal
• A/c request signal
• Bi-level a/c
• Blend
• D12
• Defrost
• Fuse block & c104, 19.5 cm from throttle position sensor) c2
• Heat
• Hot at all times
• Hot in run
• Hot in run or start
• Hvac control assembly
• Hvac fuse 9 20a
• I/p fuse block
• Ign e fuse 10a
• Max a/c
• Nca
• Off
• Powertrain control module (pcm) (on right side of engine compartment)
• Underhood fuse block (on top of left front inner wheelwell)
• Vent

Manual A/C Wiring Diagram for Chevrolet Blazer 2005

List of elements for Manual A/C Wiring Diagram for Chevrolet Blazer 2005:

• (behind right side of dash) g203
• (behind upper left end of dash) g200
• (in dash harness, between radio & bcm connector breakouts, 8 cm from radio breakout) s205
• (in engine harness, between rear heated oxygen sensors & body harness breakouts, 7 cm from breakout to heated oxygen sensor connector) s106
• (on left rear of engine compartment) g117
• (on rear of right cylinder head) g102
• (on rear of right cylinder head) g103
• 87a
• A/c
• A/c comp rly ctrl
• A/c compressor clutch
• A/c compressor clutch diode (in engine harness, 8 cm nca
• A/c compressor clutch relay
• A/c fuse 10a
• A/c high pressure switch (on rear of a/c compressor)
• A/c low pre sw signal
• A/c low pressure switch (at a/c accumulator)
• A/c request signal
• Air temperature actuator (behind right side of dash, on heater case)
• Bi-level
• Bi-level a/c
• Blend
• Blower motor (on right rear of engine compartment)
• Blower motor relay (on center rear of engine compartment)
• Blower motor resistor (on right rear of engine compartment, on blower case)
• Blower switch
• Cm from throttle position sensor)
• Connector) s104
• D (not used)
• D12
• Def
• Ect sensor sinal
• Engine coolant temperature (ect) sensor (in left cylinder head, between two rear spark plugs)
• From breakout to a/c high pressure switch)
• Heat
• High
• Hot at all times
• Hot in park & head
• Hot in run
• Hot in run or start
• Hvac 1 fuse 21 10a
• Hvac control assembly
• Hvac fuse 30a
• Hvac fuse 9 20a
• I/p fuse block
• If equipped
• Ign e fuse 10a
• Illum (x4)
• Illum fuse 12 10a
• Low
• Low reference
• Max a/c
• Med
• Mode door switch
• Nca
• Norm
• Off
• Power mirrors system (automatic day/night mirror)
• Powertrain control module (pcm) (on right side of engine compartment)
• S118 (in body harness, between blower motor & blower motor relay breakout)
• S215 (in dash harness, behind hvac assembly)
• S217 (in dash harness, in breakout to heater controller connectors, 6 cm into breakout)
• Servo amplifier
• Sp202 (strapped to body harness, at left center of dash)
• Sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Tan
• Temp control
• Underhood fuse block (on top of left front inner wheelwell)
• Vent

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram for Chevrolet Blazer 2005

List of elements for Anti-lock Brakes Wiring Diagram for Chevrolet Blazer 2005:

• (base pickup: behind left side of dash) (except base pickup: (under left side of dash) data link connector (dlc)
• A10
• A12
• Abs fuse 22 10a
• Abs fuse 60a
• Anti-lock indicator
• Axle switch sig
• Axle switch signal
• Body control module (under dash, on heater case)
• Brake fluid level switch (on master cylinder)
• Brake fluid lvl sig
• Brake warning indicator
• Class 2
• Computer data lines system
• Cruise control system
• Electronic brake control module (ebcm) (near left front inner fender, on brake pressure modulator valve)
• From manual a/c blower motor resistor breakout)
• Front axle indicator switch (at front axle, to right of differential)
• G102 (on rear of right cylinder head)
• G110 (near windshield washer pump)
• Ground distribution system
• Hot at all times
• Hot in run
• I/p fuse block
• Ignition 3
• Instrument panel cluster
• Left front wheel speed sensor (wss) (on left front steering knuckle assembly)
• Lf whl spd sens ref
• Lf whl spd sens sig
• Nca
• Powertrain control module (pcm) (on right side of engine compt)
• Radio
• Rdo batt fuse 19 15a
• Red
• Rf whl spd sens ref
• Rf whl spd sens sig
• Right front wheel speed sensor (wss) (on right front steering knuckle assembly)
• S121 (in body harness, between electronic brake control module & c102 breakouts, 6.5 cm from s113)
• S203
• S276
• Serial data
• Sp201 (strapped to body harness, near body relay block)
• Stoplamp switch (on brake pedal support bracket)
• Tan
• Tcc brake switch sig
• Underhood fuse block (on top of left front inner wheelwell)
• Vehicle speed signal
• Vss
• W/ electric shift control (2 speed)

ANTI-THEFT

Forced Entry Wiring Diagram for Chevrolet Blazer 2005

List of elements for Forced Entry Wiring Diagram for Chevrolet Blazer 2005:

• (not used)
• (under left side of dash)
• 2 door
• 4 door
• A12
• B10
• B11
• Battery
• Body control module (under dash, on heater case)
• Computer data lines system
• Data link connector
• Door sw sig
• Driver door jamb switch
• Driver door lock cylinder switch
• Drv dr switch
• Fr handle sw
• Front passenger door lock cylinder switch
• G200 (behind upper left end of dash)
• G202 (behind upper left end of dash)
• G203 (behind right side of dash, between c203 & splice packs)
• G205 (behind right side of dash, between c203 & splice packs)
• G450 (on left rear corner of vehicle, near c403)
• Ground
• Horn relay
• Horns system
• Hot at all times
• Ignition switch & ignition key alarm switch (in steering column)
• Instrument panel cluster
• Key in ign
• Key sw sig
• Left rear door jamb switch
• Liftgate sw
• Rear window wiper cutout & liftglass ajar jamb switch (in liftgate)
• Right door handle switch
• Right rear door jamb switch
• S276
• S305 (in body harness, 22.5 cm before right rear door jamb switch breakout)
• S427
• S501
• S601
• Security indicator
• Serial data
• Splice pack sp201 (strapped to body harness, near body relay block)
• Splice pack sp202 (strapped to body harness, at left center of dash)
• Splice pack sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Tan
• Tbc fuse 10a
• Underhood fuse block (top of left front inner wheelwell)

Pass-Key Wiring Diagram for Chevrolet Blazer 2005

List of elements for Pass-Key Wiring Diagram for Chevrolet Blazer 2005:

• A12
• Battery
• Body control module (under dash, on heater case)
• Data link connector (under left side of dash)
• Engine controls system
• G200 (behind upper left end of dash)
• Ground
• Hot at all times
• Passlock sensor (at ignition switch)
• Powertrain control module (pcm) (on right side of engine compt)
• Remote control door lock receiver (rcdlr) (behind lower left side of dash)
• Security hall effect sensor
• Sensor pwr
• Sensor ret
• Sensor sig
• Serial data
• Splice pack sp201 (strapped to body harness, near body relay block)
• Splice pack sp202 (strapped to body harness, at left center of dash)
• Tamper hall effect sensor
• Tbc fuse 10a
• Underhood fuse block (on top of left front inner wheelwell)
• W/ remote keyless entry

BODY CONTROL MODULES

Body Control Modules Wiring Diagram for Chevrolet Blazer 2005

List of elements for Body Control Modules Wiring Diagram for Chevrolet Blazer 2005:

• (envoy)
• (others)
• 12v ref
• 5v reference
• A10
• A11
• A12
• Ambient light sensor (on top left side of dash)
• Ambient light sensor sig
• Anti-theft system
• B10
• B11
• B12
• Battery positive voltage
• Body control module (under dash, on heater case)
• Class 2 serial data signal
• Computer data lines system
• Courtesy lamp relay ctrl
• Courtesy lamp sw sig
• Cruise fuse 3 10a
• Door lock ctrl
• Door locks system
• Door unlock ctrl
• Driver door key sw sig
• Drl relay ctrl
• Engine controls system
• Exterior lights system
• Flash-to-pass sw sig
• Fog lamp relay ctrl
• Front fog lamp switch sig
• G200 (behind upper left end of dash)
• Gauges fuse 4 10a
• Gmcm serial data
• Ground
• Headlamp hi beam relay ctrl
• Headlamp off sig
• Headlights system
• Hlp dimmer sw hi beam sig
• Horn relay ctrl
• Horns system
• Hot at all times
• Hot in run
• Hot in run or start
• Hot with headlamp switch in head or park
• I/p fuse block
• Ignition 1 voltage
• Ignition 3 voltage
• Instrument cluster system
• Interior lamp defeat sw sig
• Interior lamp relay coil ctrl
• Interior lights system
• Key in ignition switch
• Led dimming signal
• Left front door open switch sig
• Left front door unlock relay ctrl
• Left front turn sw sig
• Left seat belt switch sig
• Low ref
• Park brake switch (at base of park brake assembly)
• Park brake switch sig
• Park lamp relay ctrl
• Park lp fuse 5 10a
• Pnk
• Power distribution system
• Rap relay coil ctrl
• Rear compt lock mtr unlock
• Rear doors/lift glass switch
• Right front door latch switch sig
• Right front turn sw sig
• S283
• Security system sensor sig
• Sp202 (strapped to body harness, at left center of dash)
• Splice pack sp200 (strapped to body harness, in center front of dash, to right of sp204)
• Tan
• Tbc fuse 10a
• Tow/hall switch sig
• Transmissions system
• Trunk release relay ctrl
• Trunk, tailgate, fuel doors system
• Underhood fuse block (on top of left front inner wheelwell)
• Vehicle speed sensor sig
• Warning system

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Chevrolet Blazer 2005

List of elements for Computer Data Lines Wiring Diagram for Chevrolet Blazer 2005:

• (behind right kick panel) transfer case shift control module
• (not used)
• A12
• Body control module (under dash, on heater case)
• Body relay block (behind left side of dash, near dash fuse block)
• Cigar ltr fuse 2 15a
• Class 2 serial data
• Data link connector (dlc) (under left side of dash)
• Driver information center
• Driver memory seat module (w/ color mirror outside) (under left front seat)
• Electronic brake control module (ebcm) (near left front inner fender, on brake pressure modulator valve)
• G105 (on rear of left cylinder head)
• G200 (behind upper left end of dash)
• Ground distribution system
• H (not used)
• Hot at all times
• I/p fuse block
• Inflatable restraint sensing & diagnostic module (under console & carpet, between front seats)
• Instrument panel cluster
• L (not used)
• Powertrain control module (pcm) (on right side of engine compartment)
• Radio
• S152
• S276
• Sp202 (strapped to body harn, at left center of dash)
• Splice pack sp201 (strapped to body harn, near body relay block)
• Transfer case shift control module (w/ two speed push button control) (behind right kick panel)
• Underhood fuse block (on top of left front inner wheelwell)
• W/ trip computer
• W/ two speed electronic control

CRUISE CONTROL

Cruise Control Wiring Diagram for Chevrolet Blazer 2005

List of elements for Cruise Control Wiring Diagram for Chevrolet Blazer 2005:

• (not used)
• (on rear of left cylinder head)
• 2 speed push button control
• 4wd
• A/t
• A12
• A13
• A14
• A15
• Abs fuse 22 10a
• Anti-lock brake system
• Bare
• Body computer system
• Body relay block (behind left side of dash, near dash fuse block)
• Brake cutout 1
• Brake/clutch signal
• C116 (active transfer case harness to vss jumper harness, near transfer case encoder motor)
• Clutch start switch (on clutch pedal assembly)
• Cruise control module (ccm) (on left side of firewall)
• Cruise fuse 3 10a
• Cruise on/off input
• Cruise status
• Exterior lights system
• G104 (on rear of left cylinder head)
• G105
• G117 (on left rear of engine compartment, near cruise control module)
• Ground
• Hot in run
• I/p fuse block
• Ignition
• Instrument cluster system
• M/t
• Multifunction switch
• Off
• Powertrain control module (pcm) (on right side of engine compt)
• R/a
• Resume/accel input
• S134
• S138 (in body harness, near manual a/c blower motor resistor, 27.5 cm from manual a/c blower motor resistor breakout)
• S140
• S152
• S203
• Set sw
• Set/coast input
• Sp200 (strapped to body harness, in center front of dash, to right of sp204)
• Stoplamp switch (on brake pedal support bracket)
• Underhood fuse block (on top of left front inner wheelwell)
• Vehicle speed input
• Vehicle speed sensor (vss) (rear of transfer case)
• Vss
• Vss high
• Vss low

DEFOGGERS

Defoggers Wiring Diagram for Chevrolet Blazer 2005

List of elements for Defoggers Wiring Diagram for Chevrolet Blazer 2005:

• (behind right side of dash) g203
• (behind right side of dash) g205
• (behind upper left end of dash) g202
• (on right rear corner of vehicle, near c402) g420
• Driver outside rearview mirror
• Front passenger outside rearview mirror
• Hot at all times
• Hot in run
• Hot in run or start
• Htd mir fuse 10a
• Hvac 1 fuse 21 10a
• Hvac control assembly (in center of dash)
• I/p fuse block
• Ign e fuse 10a
• Illum
• Interior lights system
• Nca
• On led
• Rear defogger switch
• Rear window defogger grid
• Rear window defogger relay
• Rr dfog fuse 30a
• S217
• S501
• S601
• Splice pack sp203 (in front of ashtray, strapped to body harness)
• Splice pack sp204 (center of dash, left of sp200)
• Timer circuit
• Underhood fuse block (on top of left front inner wheelwell)

ENGINE PERFORMANCE

4.3L VIN X

4.3L VIN X, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Blazer 2005

List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Blazer 2005:

• (not used)
• (rear of distributor) camshaft position sensor (cmp)
• 12v ref
• 3-2 sol
• 5 v ref
• 5v ref
• Abs fuse 22 10a
• Battery
• C red
• Ckp sig
• Class 2 data
• Clstr fuse 11 10a
• Clutch pedal position switch (on clutch pedal support bracket)
• Cmp sens
• Cpp sw
• Crankshaft position sensor (ckp) (on front of engine, near crankshaft pulley)
• Ect sens
• G103 (on rear of right cylinder head)
• G105 (on rear of left cylinder head)
• G105 (on rear of left cylinder head)
• Ground
• Heated oxygen sensor (bank 1 sensor 1) (in left exhaust pipe, in front of catalytic converter)
• Heated oxygen sensor (bank 1 sensor 2) (in exhaust system, after catalytic converter)
• Heated oxygen sensor (bank 2 sensor 1) (in right exhaust pipe, in front of catalytic converter)
• Ho2s high
• Ho2s low
• Hot in off, run or start
• Hot in run
• I/p fuse block
• Ign 1
• Inj 1
• Inj 2
• Inj 3
• Inj 4 ctrl
• Inj 5
• Inj 6
• Knock sensor (ks) (on top rear of engine)
• Ks sig
• Low ref
• Nca
• Off/crk/run
• P/n
• Park/neutral position switch (on left side of transmission)
• Pnk
• Powertrain control module (pcm) (on right side of engine compt)
• Red
• S100
• S106
• S116
• S138
• S152
• S203
• Stoplamp switch (on brake pedal support bracket)
• Tan
• Tcc sw
• Trans sig a
• Trans sw b
• Trans sw c
• Trans sw p

4.3L VIN X, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Blazer 2005

List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Blazer 2005:

• 1-2 shift sol
• 2-3 shift sol
• 3-2 shift sol
• A10
• Automatic transmission
• Automatic transmission fluid pressure manual valve position switch
• B10
• C10
• Central sequential fuel injection (top right center of engine, forward of distributor)
• D10
• D2 sw
• D3 sw
• D4 sw
• E10
• Ecm b fuse 20a
• Ecm i fuse 15a
• Eng i fuse 10a
• Evaporative emission canister purge solenoid (top right center of engine)
• Evaporative emission canister vent solenoid (rear of fuel tank)
• Fuel inj
• Hot at all times
• Hot in run or start
• Lo sw
• Oxygen fuse 20a
• Pnk
• Pressure control solenoid valve
• Red
• Rev sw
• S133
• Tan
• Tcc pwm sol
• Tcc sol
• Transmission fluid temperature sensor
• Underhood fuse block (on top of left front inner wheelwell)

4.3L VIN X, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Blazer 2005

List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Blazer 2005:

• (under left side of dash) data link connector
• 12v in
• A11
• A12
• Body control module (under dash, on heater case)
• Ecm b fuse 20a
• Eng spd
• Engine coolant temperature (ect) sensor (left cylinder head, between two rear spark plugs)
• Fuel pump & sender assembly (mounted in top of fuel tank assembly)
• Fuel pump prime connector
• Fuel pump relay
• Fuel tank pressure sensor (at top of fuel tank)
• G102 (on rear of right cylinder head)
• G105 (on rear of left cylinder head)
• G402 (on left rear frame rail)
• Gnd
• Hot at all times
• Instrument cluster
• Instrument cluster system
• Intake air temperature sensor (left front of engine compt, fresh air intake duct)
• Maf sig
• Manifold absolute pressure (maf) sensor (on top center of engine)
• Mass airflow sensor (maf) (on air intake assembly)
• Mil input
• Pnk
• Red
• S152
• S422 (in chassis harness, 8 cm from fuel pump & sender assembly breakout toward breakout for c104)
• S423
• Splice pack 201 (near body relay block)
• Tan
• Tan b
• Throttle position (tp) sensor (on throttle body assembly)
• Underhood fuse block (on top of left front inner wheelwell)

4.3L VIN X, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Blazer 2005

List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Blazer 2005:

• (not used)
• (on rear of right cylinder head) g103
• 1-2 shift
• 12 v ref
• 2-3 shift
• 2wd
• 4wd
• A/c clu
• A/c low
• A/c req
• Air conditioning system
• Anti-lock brakes system
• Axle sw
• C116 (m-m)
• Cruise control system
• Cruise eng
• Distributor
• Engine spd
• Evap purge
• Evap vent
• Fuel lev
• Fuel pmp rly
• G104 (on rear of left cylinder head)
• G105 (on rear of left cylinder head)
• G117 (on left rear of engine compt, near cruise control module)
• Gen f
• Gen t/o
• Ground
• H02s htr low
• High voltage coil wire
• Ho2s htr high
• Ho2s htr low
• Iac a hi
• Iac a lo
• Iac b hi
• Iac b lo
• Iat sens
• Ic timing
• Idle air control valve (on throttle body assembly)
• Ign timing sig.
• Ignition coil (top rear of engine)
• Ignition control module (on top right side of engine)
• Ignition feed
• Low ref
• Maf sig
• Map sig
• Mil
• Nca
• Pc sol
• Pnk
• Pnk a
• Powertrain control module (pcm) (on right side of engine compt)
• Red
• S106
• S134
• S140
• S152
• Spark plugs
• Starting/charging system
• Tach. sig.
• Tan
• Tank pres
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Tp sens
• Trans sig a
• Trans sig c
• Transmissions system
• Vehicle speed sensor (on side of transfer case)
• Vss
• Vss hi
• Vss low

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Chevrolet Blazer 2005

List of elements for Back-up Lamps Wiring Diagram for Chevrolet Blazer 2005:

• (a/t)
• (left side of transmission)
• (m/t)
• (m/t) a
• (not used)
• B/u lp fuse 25a
• B11 c2
• Back-up lamp switch (m/t) (left side of transmission)
• C b
• C3 a4
• C3 b3
• F3 c1
• G450 (on left rear corner of vehicle, near c403)
• Hot in run or start
• Left backup lamp
• Mirrors system (automatic day/ night mirror)
• Park/neutral position switch (a/t)
• Pnk
• Right backup lamp
• S309
• S419
• S420
• S427
• Trailer wiring provision
• Trl b/u fuse 10a
• Underhood fuse block (on top of left front inner wheelwell)
• Veh b/u fuse 15a

Exterior Lamps Wiring Diagram for Chevrolet Blazer 2005

List of elements for Exterior Lamps Wiring Diagram for Chevrolet Blazer 2005:

• (behind right side of dash, between c203 & splice packs) g203
• (behind right side of dash, between c203 & splice packs) g205
• (in body harness, 10 cm before center high mounted stoplamp breakout)
• (in chassis harness, 8 cm from breakout to g402) s424
• (in left taillamp jumper harness, 18 cm from taillamp harness pass-through, near taillamp)
• (in right taillamp jumper harness, 18 cm from taillamp harness pass-through, near taillamp) s418
• (strapped to body harness, in center front of dash, left of sp200) sp204
• A5 c3
• A6 c3
• B1 haz pwr a1 turn pwr c1 flshr out
• B11
• B12 c1
• B2 gnd
• Body control module (under dash, on heater case)
• Body relay block (behind left side of dash)
• C1 a4
• C1 b6
• C1 b7
• C10
• C2 a5
• C3 e4
• Center high mount stop lamp
• Cruise control system
• D1 c3
• D10 c1
• D11
• E10 c1
• E9 c1
• F10
• F11
• Fr prk fuse 10a
• G111 (on left side of radiator support, near sp100)
• G112 (on right side of radiator support, near sp101)
• G402 (on left rear frame rail)
• G450 (on left rear corner of vehicle, near c403)
• Haz lp fuse 20a
• Hazard
• Head
• Headlamp switch
• Hot at all times
• Hot in run or start
• I/p fuse block
• Instrument panel cluster
• Interior lights system
• Left
• Left front marker lamp
• Left front park/ turn signal lamp
• Left rear license plate lamp
• Left turn in
• Left turn ind
• Lr prk fuse 10a
• Lt trn fuse 10a
• Lt turn fuse 10a
• Multi- function switch
• Nca
• Normal
• Off
• Park
• Park lamp relay
• Park lp fuse 20a
• Park rly ctrl
• Park/ turn signal lamps
• Pnk
• Prk lp fuse 5 10a
• Resistor
• Right
• Right front marker lamp
• Right front park/ turn signal lamp
• Right rear license plate lamp
• Right turn in
• Right turn ind
• Rr prk fuse 10a
• Rt trn fuse 10a
• S404
• S405
• S415
• S416
• S417
• S419
• S420
• S423
• S427
• Sp100 (in forward lamp harness, to left rear of radiator support)
• Sp101 (in forward lamp harness, to right inside of radiator support)
• Sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Stop lp fuse 20a
• Stoplamp switch (on brake pedal support bracket)
• Tr chmsl fuse 10a
• Trailer wiring provisions
• Trl prk fuse 10a
• Trl trn fuse 10a
• Trr trn fuse 10a
• Turn fuse 20a
• Turn signal/hazard flasher module (behind right side of dash)
• Underhood fuse block (on top of left front inner wheelwell)
• Ve chmsl fuse 10a

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 3) for Chevrolet Blazer 2005

List of elements for Ground Distribution Wiring Diagram (1 of 3) for Chevrolet Blazer 2005:

• (in engine harness, between icm & map sensor breakouts, 8 cm from breakout to icm)
• (not used)
• (not used) f
• (w/ overhead console) ambient air temperature sensor
• (w/o trip) (w/ trip)
• (zr2) daytime running lamps (drl) relay
• A c2
• A/c compressor clutch
• A/c compressor clutch diode
• A/c low pressure switch
• A/t
• A18
• Bare
• Battery
• Body relay block (behind left side of dash, near dash fuse block)
• Brake fluid level switch
• California
• Chmsl relay
• Cruise control module
• Cylinder head)
• D12
• Data link connector (dlc)
• Daytime running lamps (drl) relay
• Driver information center (dic)
• E16
• Electronic brake control module
• For underhood fuse block & c104, 19.5 cm from throttle position sensor)
• Fuel pump relay
• G100 (on lower right radiator support)
• G101
• G102 (on rear of right cylinder head)
• G103 (on rear of right
• G104 (on rear of left cylinder head)
• G105 (on rear of left cylinder head)
• G106 (on right frame rail, forward of right front wheel)
• G107 (on right front of engine block)
• G108 (on right side of radiator support, next to battery fuse)
• G110 (near windshield washer pump)
• G111 (on left side of radiator support, near sp100)
• G112 (on right side of radiator support, near sp 101)
• Headlamp power relay
• Heated oxygen sensor (ho2s) (bank 1 sensor 1) shield
• 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 fluid pump
• Remote control door lock receiver (rcdlr)
• Right front fog lamp
• Right front park/ turn signal lamp
• Right horn
• S106 (in engine harness, between rear heated oxygen sensors & body harness breakouts, 7 cm from breakout to heated oxygen sensor connector)
• S140 (in engine harness, 13 cm from vss breakout)
• S140 (in engine harness, 7 cm from vehicle speed sensor breakout)
• S152
• Secondary air injection (air) pump
• Sp100 (in forward lamp harness, to left rear of radiator support)
• Sp101 (in forward lamp harness, to right inside of radiator support)
• Starter relay
• Transfer case shift control module (2 speed push button control)
• Underhood fuse block (on top of left front inner wheelwell)
• Vehicle speed sensor (vss) shield
• Vehicle speed sensor shield
• Windshield washer fluid pump

Ground Distribution Wiring Diagram (2 of 3) for Chevrolet Blazer 2005

List of elements for Ground Distribution Wiring Diagram (2 of 3) for Chevrolet Blazer 2005:

• (not used)
• 4 door
• 4wd
• A12
• Air temperature actuator
• Ashtray lamp
• Audio amplifier
• Automatic transmission shift level position indicator lamp
• Automatic transmission shift lock actuator
• B12
• Body control module
• Body relay block (behind left side of dash, near dash fuse block)
• Cigar lighter
• Connector & prndl lamp breakout, 7 cm from prndl lamp breakout)
• Courtesy lamp relay
• Data link connector (dlc)
• Door lock relay
• Door unlock relay
• Driver door handle switch
• Driver door jamb switch
• Driver door unlock relay
• Fog lamp switch
• Fuel pump & sender assembly
• G200 (behind upper left end of dash)
• G201 (behind upper left end of dash)
• G203 (behind right side of dash, between c203 & splice packs)
• G204 (behind right side of dash, between c203 & splice packs)
• G207 (near multi- function switch)
• G402 (pickup: on rear frame rail crossmember, near fuel filler neck ground strap utility: on left rear frame rail)
• Headlamp ground relay
• Headlamp switch
• Hvac control assembly
• Ignition key alarm switch
• Ignition lock cylinder control actuator
• Inflatable restraint steering wheel module
• Instrument panel cluster (ipc)
• Left auxiliary power outlet
• Left license lamp
• Left steering wheel control switch
• Nca
• Park switch
• Radio
• Rear wiper/ washer switch & endgate/ liftgate window release switch
• Right auxiliary power outlet
• Right license lamp
• Right steering wheel control switch
• S269 (in auxiliary power tray harness, 8.5 cm from in-line dash connector)
• S423
• Sp202 (strapped to body harness, at left center of dash)
• Sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Tan
• Tow/ haul switch
• Trailer wiring provision
• Transfer case shift control switch
• W/ column shift
• W/ floor shift
• W/ manual a/c
• W/ radio controls
• W/o radio controls

Ground Distribution Wiring Diagram (3 of 3) for Chevrolet Blazer 2005

List of elements for Ground Distribution Wiring Diagram (3 of 3) for Chevrolet Blazer 2005:

• (2 speed electric shift control) transfer case shift control module
• (2 speed push button control) transfer case shift control module
• (8-way pwr seat)
• (in left door harness, between door speaker, door lock & side window switch breakout)
• (left power seat harness, 15 cm from c317)
• (w/ mem) h d (6-way pwr seat)
• (w/ memory) h d (6-way pwr seat)
• 2 speed push button control
• 4 door
• A c2
• Bare
• Blower motor
• Blower motor relay
• C10
• C309
• Center high mount stop lamp
• Center high mount stop lamp resistor
• D12
• D13
• Driver door lock & window switch
• Driver door lock cylinder switch
• Driver heated seat assembly
• Driver memory seat module
• Driver outside rearview mirror
• Driver seat adjuster switch
• Driver seat belt switch
• Driver seat lumbar switch
• Front passenger door lock & window switch
• Front passenger door lock cylinder switch
• Front passenger heated seat assembly
• Front passenger outside rearview mirror
• Front passenger seat adjuster switch
• Front passenger seat belt switch
• Front passenger seat lumbar switch
• G117 (on left rear of engine compt, near cruise control module)
• G202 (behind upper left end of dash)
• G205 (behind right side of dash, between c203 & splice pack)
• G420 (utility: on right rear corner of vehicle, near c402 pickup: on right rear frame rail)
• G450 (on left rear corner of vehicle, near c403)
• Inside rearview 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 rearview folding mirror switch
• Outside rearview mirror switch
• Overhead console
• Rear window defogger grid
• Rear window wiper cutout & liftglass ajar jamb switch
• Rear window wiper motor controller
• Relay breakout)
• Right back-up lamp
• Right rear door jamb switch
• Right rear park/ turn signal lamp
• Right rear tail/ stop lamp
• Right vanity mirror lamp
• S134 (left side of transfer case)
• S302 (regular cab: in dome harness, between inside air temperature sensor & left vanity mirror lamp utility: in dome harness, between inside air temperature sensor & left vanity mirror lamp breakouts, 5 cm from breakout to sensor)
• S313
• S320 (in right power seat harness, 15 cm from c315)
• S404 (in body harness, 10 cm before center high mounted stoplamp breakout)
• S419 (in left taillamp jumper harness, 8 cm toward c403, near left taillamp harness pass-through, near taillamp)
• S420 (in right taillamp jumper c402, near right taillamp harness pass-through, near taillamp)
• S427 (crew cab pickup: in left rear body harness utility: in left rear body harness, 7 cm below left taillamp c403 breakout)
• S501
• S601 (in right door harness)
• Sp204 (strapped to body harness, in center front of dash, left of sp 200)
• Sunroof control module
• Transfer case front propshaft speed sensor shield
• Transfer case rear propshaft speed sensor shield
• Turn signal/ hazard flasher module
• Universal garage door opener (ugdo)
• Vehicle speed sensor (vss) shield
• W/ folding power mirrors
• W/ heated seats
• W/ keyless entry
• W/ long console
• W/ power door locks
• W/ zm8
• Window lockout switch
• Windshield wiper motor

HEADLIGHTS

Headlights Wiring Diagram, with ZR2 for Chevrolet Blazer 2005

List of elements for Headlights Wiring Diagram, with ZR2 for Chevrolet Blazer 2005:

• (behind right side of dash, between c203 & splice packs) g203
• (on left side of radiator support, near sp100) g111
• (on right side of radiator support, near sp101) g112
• 5v ref
• A11
• A12
• Ambient light sensor (on top left side of dash)
• Auto
• B10
• B12
• Battery fuse 175a
• Body control module (under dash, on heater case)
• Body relay block (behind left side of dash, near dash fuse block)
• C1 d9 pnk
• Computer data lines system
• Daytime running lamps relay (near breakout for rear washer hose)
• Drl relay ctrl
• E10
• E11
• E12
• E13
• Exterior lights system
• Fog lamp ind
• Fog lamp relay
• Fog lamp switch
• Fog lp fuse 15a
• Fog rly ctrl
• Fog sw in
• Ftp
• Ftp in
• Fuse holder
• G102 (on rear of right cylinder head)
• Gauges fuse 4 10a
• Ground distribution system
• Hdlp sw fuse 7 10a
• Head
• Headlamp ctrl
• Headlamp power relay
• Headlamp switch
• High
• High beam in
• High beam ind
• High beam/ flash-to- pass switch
• Hot at all times
• Hot in on or start
• Hot in run or start
• I/p fuse block
• Ign
• Ign e fuse 10a
• Illum
• Information not available
• Instrument panel cluster
• Interior lights system
• Left fog lamp
• Left high beam headlamp
• Left low beam headlamp
• Light sensor
• Low
• Lt hdlp fuse 15a
• Multifunction switch (in steering column assembly)
• Nca
• Park
• Park brake sw
• Park brake switch (on base of park brake assembly)
• Park lamp relay
• Park lp fuse 20a
• Park rly ctrl
• Pnk
• Red
• Right fog lamp
• Right high beam headlamp
• Right low beam headlamp
• Rt hdlp fuse 15a
• S202
• Serial data
• Splice pack sp100 (in forward lamp harness, to left rear of radiator support)
• Splice pack sp101 (in forward lamp harness, to right inside of radiator support)
• Splice pack sp203 (in dash harness, of ashtray, in front strapped to body harness)
• Tbc fuse 10a
• Underhood fuse block (on top of left front inner wheelwell)

Headlights Wiring Diagram, without ZR2 for Chevrolet Blazer 2005

List of elements for Headlights Wiring Diagram, without ZR2 for Chevrolet Blazer 2005:

• (behind right side of dash, between c203 & splice packs) g203
• (on left side of radiator support, near sp100) g111
• (on right side of radiator support, near sp101) g112
• 5v ref
• A11
• A12
• Ambient light sensor (on top left side of dash)
• Auto
• B10
• B12
• Battery fuse 175a
• Body control module (under dash, on heater case)
• Body relay block (behind left side of dash, near dash fuse block)
• C1 b12
• C11
• Computer data lines system
• Daytime running lamps relay
• Drl relay ctrl
• E10
• E11
• E12
• E13
• Exterior lights system
• Fog lamp ind
• Fog lamp relay
• Fog lamp switch
• Fog lp fuse 15a
• Fog rly ctrl
• Fog sw in
• Ftp
• Ftp in
• Fuse
• G102 (on rear of right cylinder head)
• G200 (behind upper left end of dash)
• Gauges fuse 4 10a
• Hdlp
• Hdlp sw fuse 7 10a
• Headlamp ctrl
• Headlamp grounding relay
• Headlamp power relay
• Headlamp switch
• High
• High beam in
• High beam ind
• High beam/ flash-to- pass switch
• Holder
• Hot at all times
• Hot in on or start
• I/p fuse block
• Ign
• Illum
• Instrument panel cluster
• Interior lights system
• Left fog lamp
• Left high beam headlamp
• Left low beam headlamp
• Light sensor
• Low
• Lt hdlp fuse 15a
• Multifunction switch (in steering column assembly)
• Nca
• Park brake sw
• Park brake switch (on base of park brake assembly)
• Park lamp relay
• Park lp fuse 20a
• Park rly ctrl
• Pklp
• Pnk
• Red
• Right fog lamp
• Right high beam headlamp
• Right low beam headlamp
• Rt hdlp fuse 15a
• Serial data
• Splice pack sp100 (in forward lamp harness, to left rear of radiator support)
• Splice pack sp101 (in forward lamp harness, to right inside of radiator support)
• Splice pack sp202 (strapped to body harness, at left center of dash)
• Splice pack sp203 (in dash harness, of ashtray, in front strapped to body harness)
• Tbc fuse 10a
• Underhood fuse block (on top of left front inner wheelwell)

HORN

Horn Wiring Diagram for Chevrolet Blazer 2005

List of elements for Horn Wiring Diagram for Chevrolet Blazer 2005:

• A11
• Battery fuse 175a
• Body control module (under dash, on heater case)
• Fuse holder
• G111 (on left side of radiator support, near sp100)
• G112 (on right side of radiator support, near sp101)
• Horn fuse 15a
• Horn relay
• Horn relay control
• Horn switch
• Hot at all times
• Left horn (in left fender well)
• Power distribution system
• Red
• Right horn (in right front fender well)
• Sp100 (in forward lamp harness, to left rear of radiator support)
• Sp101 (in forward lamp harness, to right inside of radiator support)
• Steering wheel
• Underhood fuse block (on top of left front inner wheelwell)
• W/ theft deterrent

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram (1 of 2) for Chevrolet Blazer 2005

List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Chevrolet Blazer 2005:

• A10
• A11
• A12
• Air bag ind
• Anti-lock brakes ind
• B10
• B11
• B12
• Batt
• Brake ind
• Charge ind
• Check gauges ind
• Clstr fuse 11 10a
• Coolant temperature
• Cruise fuse 3 10a
• Ctsy lamp fuse 8 10a
• Eng spd
• Engine oil pressure (eop) sensor (on top rear of engine, near distributor)
• Exterior lights system
• Fuel
• G203 (behind right side of dash, between c203 & splice packs)
• G207 (near multifunction switch)
• Gauges fuse 4 10a
• Ground
• High beam ind
• Hot at all times
• Hot in acc, run or rap
• Hot in park or head
• Hot in run
• Hot in run or start
• Hot in run, bulb test or start
• I/p fuse block
• Ign 1
• Ign 3
• Illum fuse 12 10a
• Illumination (6 bulb)
• Instrument cluster
• Interior lights system
• Left turn ind
• Logic
• Low fuel ind
• Mil (service engine soon ind)
• Nca
• Odometer display
• Off/run start
• Oil
• Over speed alarm ind
• P r n d 3 2 1
• Park sw
• Park switch (in steering column)
• Pnk
• Power distribution system
• Rdo batt fuse 19 15a
• Rdo ign fuse 24 10a
• Right turn ind
• S205
• S310
• Seat belt ind
• Security ind
• Serial data
• Service 4wd ind
• Spare ind
• Speedometer
• Splice pack sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Tachometer
• Tail gate alarm ind
• To w/haul ind (a/t)
• Trip reset
• Upshift ind (m/t)
• Volt
• Vss

Instrument Cluster Wiring Diagram (2 of 2) for Chevrolet Blazer 2005

List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Chevrolet Blazer 2005:

• (behind right kick panel) transfer case shift control module
• (in left cylinder head, between two rear spark plugs) engine coolant temperature sensor
• (near left front inner fender, on brake pressure modulator valve) electronic brake control module
• (on left rear of engine compartment, near cruise control module) g117
• (on left side of transmission) park/neutral position & back-up lamp switch
• (on rear of left cylinder head) g104
• (rear of transmission) vehicle speed sensor
• (under dash, on heater case) body control module
• 2wd
• 4wd
• A12
• Air temp
• Ambient air temperature sensor (front center of vehicle, behind fascia)
• B10
• Bare
• Body control module (under dash, on heater case)
• Body relay block (behind left side of dash, near dash fuse block)
• C116 (m-m)
• Clr
• Compass sensor (w/ long console: integral to driver information center) (w/ short console: in headliner, right of overhead console)
• Cruise control module (on left side of firewall)
• Data link connector (under left side of dash)
• Driver information center (in front overhead console)
• Ect sens sig in
• Ect sensor in
• Engine controls system
• Fuel level sig in
• Fuel pump & sender assembly (on top of fuel tank)
• Fused batt
• Fused ign
• G105 (on rear of left cylinder head)
• G450 (on left rear corner of vehicle, near c403)
• Ground
• Ic logic
• Int lite dim
• Interior lights system
• Low ref
• Mil ind ctrl
• Parklamps
• Powertrain control module (pcm) (on right side of engine compt)
• Prndl a sig
• Prndl b sig
• Prndl c sig
• Prndl p sig
• Radio
• Rear window wiper cutout & liftglass ajar jamb switch (in liftgate)
• Red
• S134
• S140
• S152
• S276
• S422 (in chassis harness, 8 cm from fuel pump & sender assembly breakout, toward breakout for c104)
• S427
• Serial data
• Splice pack sp200 (strapped to body harness, in center front of dash, to right of sp204)
• Splice pack sp201 (strapped to body harness, near body relay block)
• Tach out
• Transfer case shift control module (behind right kick panel)
• Underhood fuse block (on top of left front inner wheelwell)
• Vss high
• Vss in
• Vss low
• Vss sig out
• W/ trip computer
• W/o trip computer

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Chevrolet Blazer 2005

List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Chevrolet Blazer 2005:

• (in liftgate)
• (not used)
• 2 door
• 4 door
• B10
• B11
• B12
• Body control module (under dash, on heater case)
• Body relay block (behind left side of dash, near dash fuse block)
• C203
• Cargo lamp
• Courtesy lamp
• Courtesy lamp relay
• Ctsy lamp fuse 8 10a
• Ctsy lamp switch sig
• Dome lamp
• Dome lmp
• Dome override
• Dr handle
• Driver door jamb switch
• Driver door sw input
• G11
• G200 (behind upper left end of dash)
• G203 (behind right side of dash, between c203 & splice packs)
• G205 (behind right side of dash, between c203 & splice packs)
• G450 (on left rear corner of vehicle, near c403)
• Ground distribution system
• Headlamp switch
• Hot at all times
• I/p fuse block
• Inadvertent power
• Inadvertent power relay
• Int lps detent switch sig c3
• Key buzzer
• Lamp request
• Left console courtesy lamp
• Left rear door jamb switch
• Liftgate jamb switch c2
• Nca
• Power distribution system
• Rear window wiper cutout & liftgate ajar jamb switch
• Right console courtesy lamp
• Right door handle switch
• Right front door jamb c3 switch input
• Right rear door jamb switch
• S305 (in body harness, 22.5 cm before right rear door jamb switch breakout)
• S427
• Secondary door latch switch sig
• Sp202 (strapped to body harness, at left center of dash)
• Sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Sp204 (strapped to body harness, in center front of dash, left of sp200)
• Splice pack sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Tan
• To dome lamp (diagram 2 of 2)
• To overhead console (diagram 2 of 2)
• To splice s300 (diagram 2 of 2)
• To splice s332 (diagram 2 of 2)
• W/ overhead console
• W/o overhead console

Courtesy Lamps Wiring Diagram (2 of 2) for Chevrolet Blazer 2005

List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Chevrolet Blazer 2005:

• (w/ ec mirror) (w/o ec mirror)
• (w/o ec mirror) (w/ ec mirror)
• C301
• Dome lamp
• Driver information center (dic)
• From body relay block (diagram 1 0f 2)
• From body relay block (diagram 1 of 2)
• G202 (behind upper left end of dash)
• Inside rearview mirror or driver information display module
• Inside rearview mirror or driver information display w/o overhead console
• Left visor vanity mirror lamp
• Nca
• Overhead console w/ sun roof
• Overhead console w/o sun roof
• Right visor vanity mirror lamp
• S300 (regular cab: top of left "a" pillar, in harness) (utility: right front of roof, in harness)
• S302
• S310
• S332 (in dome lamp harness, 7 cm from c300)
• W/ full trip

Instrument Illumination Wiring Diagram for Chevrolet Blazer 2005

List of elements for Instrument Illumination Wiring Diagram for Chevrolet Blazer 2005:

• (in left door harness between door speaker door lock & side window switch breakout) s502
• (w/ trip)
• (w/o trip)
• 2wd
• 4 door
• 4wd
• 6 bulbs
• A12
• Ashtray assembly
• Ashtray lamp
• Automatic transmission shift lever position indicator (right side of shifter assembly)
• B12
• Body control module (under dash, on heater case)
• Body relay block (behind left side of dash, near dash fuse block)
• Bulbs
• C1 f
• D nca
• Dim
• Dimmer input c3
• Dimming control
• Driver door lock & window switch
• Driver information center
• Front fog lamp switch
• Front passenger door lock & window switch
• G200 (behind upper left end of dash)
• G202 (behind upper left end of dash)
• G203 (behind right side of dash, between c203 & splice packs)
• G203 (behind right side of dash, between c203 & splice)
• G205 (behind right side of dash, between c203 & splice packs)
• Garage door opener
• Head
• Headlamp switch
• Hot at all times
• Hvac control assembly (in center of dash)
• I/p fuse block
• Illum fuse 12 10a
• Inflatable restraint steering wheel module coil (behind steering wheel, in column assembly)
• Input dimmer
• Instrument panel cluster
• Left steering wheel controls switch
• Light switch
• Nca
• Nca d
• Off
• Outside rearview mirror switch
• Overhead console
• Park
• Prk lp fuse 20a
• Prk lp fuse 5 10a
• Prk lps
• Radio
• Rear def switch illum
• Rear wiper/ washer & endgate/ liftglass window release switch
• Right steering wheel controls switch
• S205 (in dash harness, between radio & bcm connector breakouts, 8 cm from radio breakout)
• S283
• S335 (in floor shift extension harness, between in-line connector & prndl lamp breakout, 7 cm from prndl lamp breakout)
• S390
• S501
• Sp202 (strapped to body harness, at left center of dash)
• Sp202 (strapped to body harness, left center of dash)
• Sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Spice pack sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Spice pack sp204 (strapped to body harness, in center front of dash, left of sp200)
• Str whl ill fuse 6 2a
• Tow/ haul switch
• Transfer case shift control switch
• Underhood fuse block (on top of left front inner wheelwell)
• W/ trip
• W/o trip
• Window lockout switch (4 door)

MEMORY SYSTEMS

Driver"s Memory Seat Wiring Diagram for Chevrolet Blazer 2005

List of elements for Driver"s Memory Seat Wiring Diagram for Chevrolet Blazer 2005:

• (in driver's seat)
• (in left power seat harness, 5 cm from seat motors breakout, toward driver seat lumbar motor)
• (on left rear corner of vehicle, near c403) g450
• (under left side of dash) data link connector (dlc)
• +5 volt ref
• Battery b+
• Body relay block (behind left side of dash, near dash fuse block)
• Class 2 serial data
• Driver memory seat module (under left front seat)
• Driver seat adjuster switch
• Driver seat front vertical motor
• Driver seat front vertical position sensor
• Driver seat horizontal motor
• Driver seat horizontal position sensor
• Driver seat rear vertical motor
• Driver seat rear vertical position sensor
• Driver seat recliner motor
• F vertical down ctrl
• F vertical down sig
• F vertical up ctrl
• F vertical up sig
• Front vertical
• Front vertical sens
• Fwd
• Ground
• Hall sensor
• Horizontal
• Horizontal fwd ctrl
• Horizontal fwd sig
• Horizontal rwd ctrl
• Horizontal rwd sig
• Horizontal sens
• Hot at all times
• Memory 1 sig
• Memory 2 sig
• Memory position
• Memory set
• Memory set sig
• Power seats circuit breaker 25a
• R vertical down ctrl
• R vertical down sig
• R vertical up ctrl
• R vertical up sig
• Rear vertical
• Rear vertical sens
• Recline
• Recline fwd ctrl
• Recline fwd sig
• Recline rwd ctrl
• Recline rwd sig
• Recline sens
• Red
• Rwd
• S304
• S313
• S315
• S316
• Sensor ground
• Splice pack sp201 (strapped to body harness, near body relay block)
• Tan

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 5) for Chevrolet Blazer 2005

List of elements for Power Distribution Wiring Diagram (1 of 5) for Chevrolet Blazer 2005:

• (in air jumper harness, between g100 & breakout to engine harness, 5 cm from breakout to engine harness)
• (not used)
• A10
• Acc
• Air fuse 30a
• Air relay
• Air sol fuse 30a
• B10
• B11
• Battery
• Battery fuse 175a
• Body control module (bcm)
• C10
• California
• Central sequential fuel injection
• D10
• E10
• Ecm i fuse 15a
• F10
• From ign b fuse (diagram 2 of 5)
• From ign c fuse (diagram 2 of 5)
• Fuel injectors
• Fusible link
• Gauges fuse 4 10a
• Generator
• I/p fuse block
• Ign a fuse 40a
• Ignition coil
• Ignition control module (icm)
• Ignition switch
• Inflatable restraint sensing & diagnostic module (sdm)
• Instrument panel cluster (ipc)
• Lock
• Multi- function switch
• Nca
• Off
• Pnk
• Powertrain control module (pcm)
• Red
• Run
• S105
• S153
• Secondary air injection reactor fuse block
• Secondary air injection reactor pump
• Sir fuse 16 15a
• Start
• Starter
• Starter relay
• To clstr fuse (diagram 4 of 5)
• To crank fuse (diagram 4 of 5)
• To eng i fuse (diagram 2 of 5)
• To ign c fuse (diagram 2 of 5)
• To rap relay (diagram 5 of 5)
• To s204 (diagram 5 of 5)
• Turn fuse 10 20a
• Underhood fuse block (on top of left front inner wheelwell)

Power Distribution Wiring Diagram (2 of 5) for Chevrolet Blazer 2005

List of elements for Power Distribution Wiring Diagram (2 of 5) for Chevrolet Blazer 2005:

• (on top of left front inner wheelwell) underhood fuse block
• A/c compressor clutch relay
• A/t
• Abs fuse 60a
• Air relay
• B/u lp fuse 25a
• B12
• Back-up lamp switch
• Blower motor relay
• Body relay block (behind left side of dash, near dash fuse block)
• Chassis package
• D12
• Daytime running lamp (drl) relay
• Ecm b fuse 20a
• Electronic brake control module (ebcm)
• Eng i fuse 10a
• Evaporative emission (evap) canister vent solenoid
• Evaporative emissions (evap) canister purge solenoid
• F12
• Fog lamp relay
• Fog lp fuse 15a
• From ecm i a fuse diagram 1 of 5)
• From ign a fuse diagram 1 of 5)
• From int bat fuse (diagram 3 of 5)
• Fuel pump relay
• Haz lp fuse 20a
• Headlamp grounding relay
• Headlamp switch
• Heated oxygen sensor (ho2s) (bank 1 sensor 1)
• Heated oxygen sensor (ho2s) (bank 1 sensor 2)
• Heated oxygen sensor (ho2s) (bank 2 sensor 1)
• Hvac fuse 30a
• Ign b fuse 50a
• Ign c fuse 20a
• Ign e fuse 10a
• M/t
• Mass air flow (maf) sensor
• Multi- function switch
• Nca
• Oxygen fuse 20a
• Park lamp relay
• Park lp fuse 20a
• Park/ neutral position (pnp) switch
• Pnk
• Powertrain control module (pcm)
• Rear window defogger relay
• Red
• S100 (in oxygen sensor jumper harness, 36 cm from c100)
• Secondary air injection fuse block (california)
• Stud 2 fuse 30a
• To ign switch (diagram 1 of 5)
• To rap fuse (diagram 3 of 5)
• To tbc fuse (diagram 4 of 5)
• Trailer wiring provision (power aux)
• Underhood fuse block (on top of left front inner wheelwell)

Power Distribution Wiring Diagram (3 of 5) for Chevrolet Blazer 2005

List of elements for Power Distribution Wiring Diagram (3 of 5) for Chevrolet Blazer 2005:

• 2 door
• 4 door
• Aux pwr fuse 13 25a
• Body relay block
• Body relay block (behind left side of dash, near dash fuse block)
• C301
• Cargo lamp (utility)
• Cigar lighter
• Cigar ltr fuse 2 15a
• Ctsy lp fuse 8 10a
• Data link connector (dlc)
• Dome lamp
• Dome lamp (w/ sunroof)
• Dome lamp (w/o sunroof)
• Door lock relay
• Door unlock relay
• Driver door unlock relay
• Driver information center (dic)
• Driver information center (dic) (w/o trip computer)
• Driver memory seat module
• Driver seat adjuster switch
• Driver seat lumbar switch
• From abs i fuse (diagram 2 of 5)
• From s223 diagram 3 of 5)
• Front passenger seat adjuster switch
• G203 (behind right side of dash, between c203 & splice packs)
• G204 (behind right side of dash, between c203 & splice pack)
• Garage door opener
• Hdlp sw fuse 7 10a
• Headlamp switch
• I/p fuse block
• Inadvertent power lamp relay
• Instrument panel cluster (ipc)
• Int bat fuse 50a
• Left auxiliary power outlet
• Left console courtesy lamp
• Nca
• Power seats circuit breaker 25a (w/ power seat)
• Pwr lcks fuse 14 15a
• Radio
• Rap fuse 50a
• Rdo bat fuse 19 15a
• Red
• Right auxiliary power outlet
• Right console courtesy lamp
• S223
• S268 (in auxiliary power tray harness, 9.5 cm from in-line dash connector)
• S269
• S304 (in body harness, before breakout to left & right rear doors)
• S310
• S311 (in left power seat harness)
• Sp203 (in front of ashtray, strapped to body harness)
• To hi beam fuse (diagram 2 of 5)
• To pwr lcks fuse 14 (diagram 3 of 5)
• To rap relay (diagram 5 of 5)
• Transfer case shift control module (electric shift control)
• Underhood fuse block (on top of left front inner wheelwell)
• W/ memory
• W/ overhead
• W/ overhead trip console
• W/o memory
• W/o overhead console

Power Distribution Wiring Diagram (4 of 5) for Chevrolet Blazer 2005

List of elements for Power Distribution Wiring Diagram (4 of 5) for Chevrolet Blazer 2005:

• (in engine harness, between map sensor & eop sensor breakouts, 10 cm from map sensor breakout)
• (in right power seat harness, 20 cm from c315)
• 4wd
• A/c compressor clutch relay
• A/c fuse 10a
• A/t
• Atc fuse 20a
• Automatic
• Automatic transmission shift lock actuator (w/ floor shift a/t)
• Body control module
• Body relay block (behind left side of dash, near dash fuse block)
• Button
• C175
• Clstr fuse 11 10a
• Clutch start switch
• Control
• Crank fuse 10a
• D14
• D15
• D16
• Driver door lock/ side window switch
• Driver heated seat assembly
• Driver seat lumbar switch
• E10
• E11
• E12
• Electric
• Electric shift control
• F10
• F12
• From atc m fuse (diagram 4 of 5)
• From ecu b fuse (diagram 2 of 5)
• From ignition switch pin c1 (diagram 1 of 5)
• From ignition switch pin d1 (diagram 1of 5)
• Front passenger door lock/ window switch
• Front passenger heated seat assembly
• Front passenger seat lumbar switch
• Headlamp power relay
• Horn relay
• Htd seat fuse 20a
• I/p fuse block
• Instrument panel cluster (ipc)
• Lift- glass relay
• Liftglass or endgate lock cylinder switch
• Mir/lks fuse 3a
• Multi- function switch (flash to pass)
• Nca
• Outside rear view mirror switch
• Park/ neutral position (pnp) switch (a/t)
• Pnk
• Powertrain control module (pcm)
• Push
• Push button control
• Rear window defogger relay
• Rear window wiper motor controller
• Remote control door lock receiver
• Rr w/w fuse 15a
• S113 (in body harness, between blower motor & blower motor relay breakout, 13 cm from blower motor breakout)
• S116
• S314
• S321
• Shift control
• Stop lp fuse 20a
• Stoplamp switch
• Tbc fuse 10a
• To a/c fuse (diagram 4 of 5)
• Transfer case encoder motor
• Transfer case shift control module
• Transmission
• Under- hood fuse block
• Underhood fuse block (on top of left front inner wheelwell)
• W/ rke

Power Distribution Wiring Diagram (5 of 5) for Chevrolet Blazer 2005

List of elements for Power Distribution Wiring Diagram (5 of 5) for Chevrolet Blazer 2005:

• (in body harness, 17 cm from sp 202) s203
• (w/ trip)
• (w/o trip)
• 4 door
• 4wd fuse 15 10a
• A13
• Abs fuse 22 10a
• Air temperature actuator
• Body control module
• Body relay block (behind left side of dash, near dash fuse block)
• Clutch start switch
• Cruise control module
• Cruise fuse 3 10a
• Driver door lock & window switch
• Driver information center
• Driver seat lumbar switch
• E10
• Electric shift control
• Electronic brake control module (ebcm)
• Except base
• From 4wd fuse (diagram 5 of 5)
• From ignition switch pin c6 (diagram 1 of 5)
• From ignition switch pin d6 (diagram 1 of 5)
• From power seats circuit breaker (diagram 3 of 5)
• Front axle indicator switch
• Front axle vacuum solenoid (push button control)
• Front pas- senger seat lumbar switch
• Front passenger door lock & window switch (2 door)
• Frt wpr fuse 17 25a
• Hvac control assembly
• Hvac fuse 9 20a
• Hvac i fuse 21 10a
• I/p fuse block
• Inside rear view mirror (w/ automatic day/night mirror)
• Instrument panel cluster
• Multi- function switch
• Multifunction switch
• Power window circuit breaker 30a
• Push button control
• Radio
• Rdo ign fuse 24 10a
• Rear wiper/ washer switch & endgate/ liftgate window release switch (w/ rear
• Red
• Retained accessory power (rap) relay
• Rr wpr fuse 23 15a
• Sp200 (strapped to body harness, in center front of dash, to right of sp 204)
• Stop- lamp switch
• Sunroof control module
• Sunroof switch
• To heater controller connectors, 6 cm into breakout) s217
• To hvac fuse (diagram 5 of 5)
• Transfer case shift control module
• Transfer case shift control switch (4wd)
• Window lockout switch (4 door)
• Window wiper system)
• Windshield wiper motor

POWER DOOR LOCKS

Power Door Locks Wiring Diagram for Chevrolet Blazer 2005

List of elements for Power Door Locks Wiring Diagram for Chevrolet Blazer 2005:

• (in body harness, 6.5 cm before right rear door jamb switch breakout) s307
• A5 c1
• B11
• Bat position vol
• Battery
• Body control module (under dash, on heater case)
• Body relay block (behind left side of dash, near dash fuse block)
• Body relay block (behind left side of dash, near dash fuse block)
• D10
• Door lock relay
• Door unlock relay
• Dr lk rly
• Dr unlk rly
• Driver door lock & window switch
• Driver door lock actuator
• Driver door unlock relay
• Drv dr unlk rly
• E10
• E11
• E12
• F10
• F12
• Front passenger door lock & window switch
• Front passenger door lock actuator (in right front door)
• G105 (on rear of left cylinder head)
• G200 (behind upper left end of dash)
• Ground
• Hot at all times
• I/p fuse block
• Ign key switch
• Ignition switch & ignition key alarm switch (in steering column)
• Instrument cluster system
• Left rear door lock actuator (4 door)
• Liftglass/endgate lock cylinder switch (utility w/ content theft) (at top center of liftgate)
• Lock
• Mir/lck fuse 3a
• Mirrors system
• Pwr lks fuse 15a
• Remote control door lock receiver (rcdlr) (behind lower left side of dash)
• Rfa link
• Right rear door lock actuator (4 door) (in right rear door)
• S308 (in body harness, 16.5 cm before left rear door jamb switch breakout)
• Splice pack sp202 (strapped to body harness, at left center of dash)
• Tan
• Tbc fuse 10a
• Underhood fuse block (top of left front inner wheelwell)
• Unlock
• Vss
• W/ keyless entry

POWER MIRRORS

Electrochromic Mirror Wiring Diagram for Chevrolet Blazer 2005

List of elements for Electrochromic Mirror Wiring Diagram for Chevrolet Blazer 2005:

• A/t
• Air conditioning system
• Auto
• Automatic day/night mirror signal
• B/u lamp fuse 25a
• B11
• Back-up lamp switch (on left side of trans- mission)
• C1 f
• Exterior lights system
• G202 (behind upper left end of dash)
• Hot in run
• Hot in run or start
• Hvac1 fuse 21 10a
• I/p fuse block
• Inside rearview mirror
• Left outside rearview mirror
• M/t
• Nca
• Off
• Park/neutral position (pnp) switch (on left side of transmission)
• Photo sensor
• Pnk
• Power & logic circuits
• S217
• S302
• S309
• Underhood fuse block (on top of left front inner wheelwell)
• Veh b/u fuse 15a
• W/ ddo

Power Mirrors Wiring Diagram for Chevrolet Blazer 2005

List of elements for Power Mirrors Wiring Diagram for Chevrolet Blazer 2005:

• Body relay block (behind left side of dash, near dash fuse block)
• Day/night mirror circuit
• Down
• Drivers outside rearview mirror
• E12
• Electro chromic
• F12
• Front passenger outside rearview mirror
• G202 (behind upper left end of dash)
• Hot at all times
• Illum
• Interior lights system
• Left
• Left/ right m
• Mir/lcks fuse 7 5a
• Motor
• Nca
• Outside rear view mirror switch
• Pnk
• Power door locks system
• Right
• S501
• Underhood fuse block (on top of left front inner wheelwell)
• Up/ down m

POWER SEATS

6-Way Power Seat Wiring Diagram for Chevrolet Blazer 2005

List of elements for 6-Way Power Seat Wiring Diagram for Chevrolet Blazer 2005:

• Back
• Body relay block (behind left side of dash, near dash fuse block)
• Driver seat adjuster switch
• Driver seat front vertical motor (in bottom of seat)
• Driver seat horizontal motor (in driver's seat)
• Driver seat rear vertical motor (in driver's seat bottom)
• Front passenger seat adjuster switch
• Front passenger seat front vertical motor
• Front passenger seat horizontal motor
• Front passenger seat rear vertical motor
• Frt dn
• Frt up
• Fwd
• G450 (on left rear corner of vehicle, near c403)
• Hot at all times
• Nca
• Power seats circuit breaker 25a
• Rear dn
• Rear up
• S304
• S311
• S313
• Tan
• Tan a

8-Way Adjustable Power Seat Wiring Diagram for Chevrolet Blazer 2005

List of elements for 8-Way Adjustable Power Seat Wiring Diagram for Chevrolet Blazer 2005:

• Back
• Body relay block (behind left side of dash, near dash fuse block)
• Driver seat adjuster switch
• Driver seat front vertical motor (in bottom of seat)
• Driver seat horizontal motor (in driver's seat)
• Driver seat rear vertical motor (in driver's seat bottom)
• Driver seat recliner motor (in driver's seat bottom)
• Front passenger seat adjuster switch
• Front passenger seat front vertical motor
• Front passenger seat horizontal motor
• Front passenger seat rear vertical motor
• Front passenger seat recliner vertical motor
• Frt dn
• Frt up
• Fwd
• G450 (on left rear corner of vehicle, near c403)
• Hot at all times
• Power seats circuit breaker 25a
• Rear dn
• Rear up
• Recl fwd
• Recl rwd
• S304
• S313
• S320
• Tan

Heated Seats Wiring Diagram for Chevrolet Blazer 2005

List of elements for Heated Seats Wiring Diagram for Chevrolet Blazer 2005:

• Cruise fuse 3 10a
• Driver heated seat assembly
• Driver heated seat module
• Driver seat lumbar switch
• Element control
• Front passenger heated seat assembly
• Front passenger seat belt switch (open when buckled)
• Front passenger seat lumbar switch
• G450 (on left rear corner of vehicle, near c403)
• Ground
• Heated seat relay
• Heater element seat back
• Heater element seat cushion
• Hi/lo status ind bulb
• Hot at all time
• Hot in run
• Htd seat fuse 20a
• I/p fuse block
• Nca
• Off
• Pnk
• Power distribution system
• S313
• S314
• S320
• S321
• Splice pack sp200 (in center front of dash, to right of sp204)
• Switch signal
• Underhood fuse block (on top of left front inner wheelwell)

Lumbar Wiring Diagram for Chevrolet Blazer 2005

List of elements for Lumbar Wiring Diagram for Chevrolet Blazer 2005:

• Body relay block (behind left side of dash, near dash fuse block)
• Driver seat lumbar motor (in driver's seat bottom)
• Driver seat lumbar switch
• Front passenger seat lumbar motor
• Front passenger seat lumbar switch
• G450 (on left rear corner of vehicle, near c403)
• Hot at all times
• Htd seat fuse 20a
• Nca
• Out
• Pnk
• Power seats circuit breaker 25a
• S311
• S313
• S320
• S427
• Underhood fuse block (on top of left front inner wheelwell)

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagram, Except Xtreme for Chevrolet Blazer 2005

List of elements for Power Top/Sunroof Wiring Diagram, Except Xtreme for Chevrolet Blazer 2005:

• (not used)
• Body relay block (behind left side of dash, near dash fuse block)
• Close
• G202 (behind upper left end of dash)
• Ground
• Hot in acc, run & rap relay energized
• Ign
• Ls common
• Ls1
• Ls2
• Ls3
• Motor close & tilt down
• Motor open &
• Nca
• Open
• Open & tilt dwn input
• Overhead console
• Power window circuit breaker 30a
• Red
• S302
• Sun roof control switch
• Sun roof motor (in front of sun roof)
• Sun roof opening position switch (limit switch) (at front of sun roof assembly)
• Sunroof control module (at front of sun roof)
• Sw comm
• Tilt up
• Tilt up input close &

Power Top/Sunroof Wiring Diagram, Xtreme for Chevrolet Blazer 2005

List of elements for Power Top/Sunroof Wiring Diagram, Xtreme for Chevrolet Blazer 2005:

• +close
• +open
• Close
• G300 (front of headliner)
• Hot in acc or run
• I/p fuse block
• Nca
• Off
• Open
• Red
• Rr wpr fuse 23 15a
• Sun roof motor (in front of sun roof)
• Sun roof switch
• Switch illumination

POWER WINDOWS

Power Windows Wiring Diagram, 2 Door for Chevrolet Blazer 2005

List of elements for Power Windows Wiring Diagram, 2 Door for Chevrolet Blazer 2005:

• (behind right side of dash) g205
• (behind upper left end of dash) g202
• Body relay block (behind left side of dash, near dash fuse block)
• C1 f
• C2 c
• Driver door lock & window switch
• Driver window regulator motor
• Express down module
• Front passenger door lock & window switch
• Front passenger window motor
• Ground distribution system
• Hot in acc, run or retained acc power
• Hot w/headlamp switch in park or head position
• I/p fuse block
• Illum
• Left front window switch
• Park lp fuse 5 10a
• Power window circuit breaker 30a
• Right front window switch
• S501
• Sp204 (in center front of dash, left of sp200)
• Tan

Power Windows Wiring Diagram, 4 Door for Chevrolet Blazer 2005

List of elements for Power Windows Wiring Diagram, 4 Door for Chevrolet Blazer 2005:

• (behind right side of dash) g205
• (behind upper left end of dash) g202
• Body relay block (behind left side of dash, near dash fuse block)
• C1 k
• C2 b
• Driver door lock & window switch
• Driver window motor
• Express down module
• Front passenger door lock & window switch
• Front passenger window motor
• G202 (behind upper left end of dash)
• Ground distribution system
• Hot in acc, run or retained acc power
• Hot w/headlamp switch in park or head position
• I/p fuse block
• Illum
• Left front window switch
• Left rear side window regulator motor
• Left rear window switch
• Park lp fuse 5 10a
• Power window circuit breaker 30a
• Right rear side window regulator motor
• Right rear window switch
• S306
• S501
• S502
• Sp204 (in center front of dash, left of sp200)
• Tan
• Window lockout switch

RADIO

Radio Wiring Diagram for Chevrolet Blazer 2005

List of elements for Radio Wiring Diagram for Chevrolet Blazer 2005:

• (behind steering wheel, in column assembly) inflatable restraint steering wheel module coil
• (in dash harness, between radio & bcm connector breakouts, 8 cm from radio breakout) s205
• A10
• A11
• A12
• Antenna input
• B10
• B11
• B12
• Body ground
• Coaxial cable
• Computer data lines system
• G200 (behind upper left end of dash)
• G203 (behind right side of dash, between c203 & splice packs)
• Ground
• Ground distribution system
• Hot at all times
• Hot in acc or run
• Hot in park & head
• Hot w/ headlamp switch in park & head
• I/p fuse block
• Illum fuse 12 10a
• Interior lights system
• Lamp sup volt 2
• Led dimming signal
• Left front door speaker
• Left front speaker
• Left rear door speaker (4 door) left rear speaker (2 door)
• Left steering wheel controls switch
• Lf spk out (+)
• Lf spk out (-)
• Lr spkr out (+)
• Lr spkr out (-)
• Mute
• Nca
• Program
• Radio
• Radio antenna
• Rap fuse sup voltage
• Rap sup volt
• Rdo batt fuse 19 15a
• Rdo ign fuse 24 10a
• Request sig input
• Rf spkr out (+)
• Rf spkr out (-)
• Right front door speaker
• Right front speaker
• Right rear door speaker (4 door) right rear speaker (2 door)
• Right steering wheel controls switch
• Rr spk out (+)
• Rr spk out (-)
• S272
• S273
• S274
• S275
• Seek down
• Seek up
• Serial data
• Sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Splice pack sp202 (strapped to body harness, at left center of dash)
• Str whl illum fuse 6 2a
• Switch backlighting
• Tan
• Vol down
• Vol up

SHIFT INTERLOCK

Ignition Lock Solenoid Wiring Diagram, with Floor Shift for Chevrolet Blazer 2005

List of elements for Ignition Lock Solenoid Wiring Diagram, with Floor Shift for Chevrolet Blazer 2005:

• Automatic transmission shift lock actuator (part of shift control assembly, in center floor console)
• Clstr fuse 11 10a
• G200 (behind upper left end of dash)
• G201 (behind upper left end of dash)
• Hot in run or start
• I/p fuse block
• Ignition lock cyl switch
• Ignition lock cylinder control actuator (on lower side of steering column)
• Pnk
• S113
• Splice pack sp202 (strapped to body harness, at left center of dash)

Shift Interlock Wiring Diagram, with Column Shift for Chevrolet Blazer 2005

List of elements for Shift Interlock Wiring Diagram, with Column Shift for Chevrolet Blazer 2005:

• Automatic transmission shift lock actuator (inside steering column)
• B/u lp fuse 25a
• B12
• Back-up lamp switch
• Btsi fuse 10a
• C12
• G200 (behind upper left end of dash)
• G201 (behind upper left end of dash)
• Hot in run or start
• Park/ neutral position (pnp) switch (on left side of transmission)
• Pnk
• Splice pack sp202 (strapped to body harness, at left center of dash)
• Splice pack sp204 (strapped to body harness, in center front of dash, left of sp200)
• Stoplamp switch (on brake pedal support bracket)
• Underhood fuse block (on top of left front inner wheelwell)

Shift Interlock Wiring Diagram, with Floor Shift for Chevrolet Blazer 2005

List of elements for Shift Interlock Wiring Diagram, with Floor Shift for Chevrolet Blazer 2005:

• A/t shift lock actuator (part of transmission controller, in center floor console)
• B/u lp fuse 25a
• B12
• Back-up lamp switch
• Body relay block (behind left side of dash near dash fuse block)
• Btsi fuse 10a
• Btsi solenoid
• C12
• G200 (behind upper left end of dash)
• G201 (behind upper left end of dash)
• Hot in run & start
• Nca
• Park lock solenoid
• Park/ neutral position (pnp) switch (on left side of transmission)
• Pnk
• S335
• Splice pack sp202 (strapped to body harness, at left center of dash)
• Splice pack sp204 (strapped to body harness, in center front of dash, left of sp200)
• Stoplamp switch (on brake pedal support bracket)
• Underhood fuse block (on top of left front inner wheelwell)

STARTING/CHARGING

Charging Wiring Diagram for Chevrolet Blazer 2005

List of elements for Charging Wiring Diagram for Chevrolet Blazer 2005:

• (not used)
• (on right side of engine compartment) powertrain control module (pcm)
• A10
• Batt
• Battery
• Charge indicator
• Class 2
• Class 2 data
• Fuse holder
• Fusible link (10 ga- rust)
• G106 (on right frame rail, forward of right front wheel)
• G107 (on right front of engine block)
• G108 (on right side of radiator support, next to battery fuse)
• Generator control/ monitoring
• Generator field duty
• Generator l
• Hot at all times
• I/p fuse block
• Ign
• Instrument panel cluster
• Logic
• Rdo batt fuse 19 15a
• Red
• S276
• Sound systems
• Splice pack sp201 (strapped to body harn, near body relay block)
• Starter solenoid

Starting Wiring Diagram for Chevrolet Blazer 2005

List of elements for Starting Wiring Diagram for Chevrolet Blazer 2005:

• (a/t)
• (m/t)
• (m/t) (a/t)
• (not used)
• (on rear of right cylinder head)
• A/t
• A11
• Acc
• B stud
• Batt
• Battery
• Battery fuse 175a
• C1 c2
• Clutch start switch (on clutch pedal assembly)
• Crank fuse 10a
• D11
• F11
• Fuse holder
• Fusible link (10 ga- rust)
• G102
• G106 (on right frame rail, forward of right front wheel)
• G107 (on right front of engine block)
• G108 (on right side of radiator support, next to battery fuse)
• Generator
• Hold- in coil
• Hot at all times
• Ign a fuse 40a
• Ign c fuse 20a
• Ignition switch
• Lock
• M/t
• Off
• P/n
• Park/neutral position (pnp) switch (on left side of transmission)
• Power distribution system
• Pull- in coil
• Red
• Run
• Start
• Starter motor
• Starter relay
• Underhood fuse block (on top of left front inner wheelwell)

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram for Chevrolet Blazer 2005

List of elements for Supplemental Restraints Wiring Diagram for Chevrolet Blazer 2005:

• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• Air bag indicator
• Class 2 serial data
• Data link connector (dlc) (under left side of dash)
• Front signal
• G101
• Ground
• High control
• Hot in run or start
• I/p fuse block
• Ign
• Ignition
• Inflatable restraint i/p module (right side of dash)
• Inflatable restraint sensing & diagnostic module (sdm) (under console & carpet, between front seats)
• Inflatable restraint steering wheel module (in steering wheel)
• Inflatable restraint steering wheel module coil (behind steering wheel, in column assembly)
• Instrument panel cluster (ipc)
• Left inflatable restraint front end discriminating sensor (on left side of front frame crossmember)
• Logic
• Low control
• Nca
• Right inflatable restraint front end discriminating sensor (on right side of front frame crossmember)
• S276
• Shorting bar
• Sir fuse 15a
• Sound systems
• Splice pack sp201 (strapped to body harness, near body relay block)

TRANSMISSION

A/T Wiring Diagram for Chevrolet Blazer 2005

List of elements for A/T Wiring Diagram for Chevrolet Blazer 2005:

• (in body harness, between blower pnk
• (in engine harness, 13 cm from vehicle speed sensor breakout) s140
• (in engine harness, between map sensor & eop sensor breakouts, 10 cm from map sensor breakout)
• (in engine harness, between rear heated oxygen sensors & body harness breakouts, 7 cm from breakout to heated oxygen sensor connector) s106
• (left side of transfer case) s134
• (on rear of right cylinder head) g103
• (under dash, on heater case) body control module
• +5v
• 1-2 shift solenoid
• 1-2 ss
• 2-3 shift solenoid
• 2-3 ss
• 2wd
• 3-2 shift solenoid
• 3-2 ss
• 4wd
• 4wd low
• A c2
• A/t fluid pressure manual valve position switch
• A10
• A11
• A12
• Abs fuse 22 10a
• Automatic transmission
• B8 c2
• Bare
• Blower motor resistor, 27.5 cm from manual a/c blower motor resistor breakout)
• Brk sw
• C116a (4wd)
• Cls 2 data
• Clstr fuse 11 10a
• Cruise control & anti-lock brakes systems
• D3, d2
• D4, d2
• Data link connector (under left side of dash)
• Ecm b fuse 20a
• Ecm i fuse 15a
• Ect sig
• Engine coolant temperature sensor (in left cylinder head, between two rear spark plugs)
• Fluid temp sensor
• Frt axle sw
• G104 (on rear of left cylinder head)
• G105 (on rear of left cylinder head)
• G117 (on left rear of engine compt, near cruise control module)
• Gauges fuse 4 10a
• Gnd
• Hot at all times
• Hot in off, run, or start
• Hot in run
• Hot in run or start
• I/p fuse block
• Ign
• Instrument panel cluster (ipc)
• Lo ref
• Mil (service engine soon ind)
• Mil ctrl
• Motor & blower motor relay breakout, 13 cm from blower motor breakout) s113
• Nca
• Park/neutral position switch (lower left side of transmission)
• Pc sol hi
• Pc sol lo
• Pnk
• Powertrain control module (on right side of engine compt)
• Press ctrl solenoid
• Prnd a
• Prnd b
• Prnd c
• Prnd p
• Range b
• Range c
• Red
• Red a
• Red b
• Rev, lo
• S116
• S133
• S140 (in engine harness, 13 cm from vehicle speed sensor breakout)
• Sens gnd
• Solid state
• Splice pack sp201 (near body relay block)
• Stoplamp switch (on brake pedal support bracket)
• Tan
• Tcc pwm
• Tcc pwm solenoid
• Tcc sol
• Tcc solenoid
• Tft sens sig
• Throttle position sensor (on throttle body assembly)
• To icm)
• Tp sig
• Trans rng a
• Transfer case circuit
• Underhood fuse block (on top of left front inner wheelwell)
• Vehicle speed sensor (on right rear of automatic transmission or transfer case)
• Vss hi
• Vss lo

Transfer Case Wiring Diagram, with 2-Speed Automatic Transfer Case for Chevrolet Blazer 2005

List of elements for Transfer Case Wiring Diagram, with 2-Speed Automatic Transfer Case for Chevrolet Blazer 2005:

• (on left rear of engine compt, near cruise control module) g117
• +8v ref
• +8v ref out
• 2-hi ind
• 4-hi ind
• 4-lo ind
• 4wd fuse 15 10a
• 4wd ind
• 4wd lo
• 4wd lo ind sig
• 4wd sw sig
• Atc fuse 20a
• Axle sw sig
• Bare
• Body relay block (behind left side of dash)
• C1 e5
• C1 e8
• C2 e7
• Channel-a
• Channel-b
• Channel-c
• Channel-p
• Class ii data
• Class ii serial data
• Clutch sol sig
• Crank fuse 10a
• Data link connector (dlc) (partial) (under left side of dash)
• Decoder logic
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• Encoder motor
• Encoder sig rtn
• F10
• F11
• F12
• F13
• F14
• F15
• F16
• Front axle indicator switch (at front axle, to right of differential)
• Front axle vacuum solenoid (on firewall, near windshield wiper motor)
• Front propshaft speed sensor (top left rear of transfer case)
• Ft shaft speed hi
• Ft shaft speed lo
• Fwd
• G105 (on rear of left cylinder head)
• G203 (behind right side of dash)
• G205 (behind right side of dash)
• Gauges fuse 4 10a
• Gnd
• Ground
• Hot at all times
• Hot in run
• Hot in run or start
• Hot in start
• I/p fuse block
• Ignition
• Illum lamps
• Instrument panel cluster
• Interior lights system
• Lock sol out
• Module ground
• Motor feed a
• Motor feed b
• Motor lock
• Nca
• Neutral ind
• Pnk
• Power distribution system
• Powertrain control module (pcm) (on right side of engine compt)
• Pwr
• Rear propshaft speed sensor (top right rear of transfer case, near rear propshaft)
• Red
• Rr shaft speed hi
• Rr shaft speed lo
• S134 (left side of transfer case)
• S276
• Service 4wd ind
• Solid state
• Sound systems
• Splice pack sp200 (in center front of dash)
• Splice pack sp201 (near body relay block)
• Splice pack sp203 (in front of ashtray)
• Splice pack sp204 (center front of dash)
• Tan
• Transfer case encoder motor (right side of atc, below rear transfer case speed sensor connector)
• Transfer case shift control module (behind right kick panel)
• Transfer case shift control switch
• Underhood fuse block (on top of left front inner inner wheelwell)
• Underhood fuse block (on top of left front inner wheelwell)

Transfer Case Wiring Diagram, with 2-Speed Selectable Transfer Case for Chevrolet Blazer 2005

List of elements for Transfer Case Wiring Diagram, with 2-Speed Selectable Transfer Case for Chevrolet Blazer 2005:

• (a/t) pnp switch in
• (in dash harness, between radio & right console courtesy lamp breakouts, 4 cm from breakout to lamp)
• (on brake pedal support bracket) stoplamp switch
• (on right side of engine compt) powertrain control module (pcm)
• 12v battery
• 12v ignition (3)
• 2 door
• 2 hi request
• 2 hi status lamp
• 2wd hi indicator
• 2wd hi switch
• 4 door
• 4 hi request
• 4 hi status lamp
• 4 lo request
• 4 lo status lamp
• 4wd fuse 15 10a
• 4wd hi indicator
• 4wd hi switch
• 4wd lo in
• 4wd lo indicator
• 4wd lo selected
• 4wd lo switch
• Anti-lock brakes system
• Atc fuse 20a
• Axle sw
• Battery
• Body relay block (behind left side of dash, near dash fuse block)
• Btsi fuse 10a
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• Crank fuse 10a
• Cruise control system
• Ctsy lp fuse 8 10a
• D10
• D11
• D12
• D13
• D14
• D15
• D16
• Data link connector
• Data link connector (dlc) (partial) (under left side of dash)
• Encoder channel a
• Encoder channel b
• Encoder channel c
• Encoder channel p
• Encoder channel-a
• Encoder channel-b
• Encoder channel-c
• Encoder channel-p
• Encoder ground
• Encoder sig ground
• Front axle indicator switch (at front axle, to right of differential)
• G203 (behind right side of dash)
• G205 (behind right side of dash)
• Ground
• Hot at all times
• Hot in park or neutral
• Hot in run
• Hot in start
• I/p fuse block
• Ignition
• Illumination lamp
• Instrument cluster system
• Interior lights system
• M shift motor
• Motor control a
• Motor control b
• Red
• S208
• Solid state
• Splice pack sp204 (in center front of dash)
• Splice pack sp200 (in center front of dash)
• Splice pack sp200 (strapped to body harness, in center front of dash, to right of sp204)
• Splice pack sp203 (in front of ashtray)
• Splice pack sp204 (in center front of dash, left of sp200)
• Starting/ charging system
• Stoplamp switch
• Transfer case encoder motor (behind automatic transmission)
• Transfer case shift control module (behind right kick panel)
• Transfer case shift control switch
• Underhood fuse block (on top of left front inner wheelwell)
• Vehicle speed in
• Vs signal

TRUNK, TAILGATE, FUEL DOOR

Trunk, Tailgate, Fuel Door Wiring Diagram for Chevrolet Blazer 2005

List of elements for Trunk, Tailgate, Fuel Door Wiring Diagram for Chevrolet Blazer 2005:

• (w/ rke) a b
• (w/o rke)
• A12
• A5 c1
• B10
• Body control module (under dash, on heater case)
• Body relay block (behind left side of dash, near dash fuse block)
• C (w/ rke) (w/o rke) a
• Class 2 serial data
• D11
• D12
• E12
• F10
• G203 (behind right side of dash, between c203 & splice packs)
• G204 (behind right side of dash, between c203 & splice packs)
• G450 (on left rear corner of vehicle, near c403)
• Gmcm serial data
• Hot at all times
• Left door lock cylinder switch
• Lift glass release sw sig
• Liftgate/endgate lock cylinder switch (at top center of liftgate)
• Liftglass rel relay ctrl
• Liftglass relay
• Liftglass release actuator (in liftgate)
• Mir/lks fuse 3a
• Park brake sw sig
• Park brake switch (on base of park brake assembly)
• Powertrain control module (pcm) (on right side of engine compt)
• Rear wiper/washer & endgate/liftgate window release switch
• Remote control door lock receiver (behind lower left side of dash)
• S427
• Splice pack sp201 (strapped to body harness, near body relay block)
• Splice pack sp203 (in dash harn, in front of ashtray, strapped to body harness)
• Underhood fuse block (on top of left front inner wheelwell)

WARNING SYSTEMS

Warning Systems Wiring Diagram for Chevrolet Blazer 2005

List of elements for Warning Systems Wiring Diagram for Chevrolet Blazer 2005:

• (behind right side of dash, between c203 & splice packs) g203
• (behind upper left end of dash) g200
• A12
• Auto
• B11
• Battery
• Body control module (bcm) (under dash, on heater case)
• Chime
• Cruise fuse 3 10a
• Driver door jamb switch
• Driver seat belt switch (open when buckled)
• Exterior lights system
• G450 (on left rear corner of vehicle, near c403)
• Gauges fuse 4 10a
• Ground
• Ground distribution system
• Head
• Headlamp off sig
• Headlamp switch
• Hot at all times
• Hot in run
• Hot in run & start
• Hot w/ headlamp switch in park or head
• Hot w/ headlamp switch in park or head position rheostat controlled
• I/p fuse block
• Ignition 1 volt
• Ignition 3 volt
• Ignition key alarm switch (closed w/ key in ignition switch)
• Illum fuse 12 10a
• Inst panel fuse
• Instrument panel cluster (ipc)
• Key in ign sw
• Left front dr sw
• Left turn sig
• Nca
• Park
• Park lps fuse 5 10a
• Park lps volt
• Pnk
• Power distribution system
• Powertrain control module (pcm) (on right side of engine compartment)
• Radio
• Right turn sig
• S205
• S276
• S283
• S313
• Seat belt switch
• Serial data
• Sp200 (strapped to body harness, in center front of dash, to right of sp204)
• Sp201 (strapped to body harness, near body relay block)
• Sp202 (strapped to body harness, at left center of dash)
• Sp203 (in dash harness, in front of ashtray, strapped to body harness)
• Tan
• Tbc fuse 10a
• Underhood fuse block (on top of left front inner wheelwell)

WIPER/WASHER

Front Wiper/Washer Wiring Diagram for Chevrolet Blazer 2005

List of elements for Front Wiper/Washer Wiring Diagram for Chevrolet Blazer 2005:

• (on left rear of engine compartment, near cruise control module) g117
• F7 c2 (on rear of right cylinder head) g102
• Frt wpr fuse 17 25a
• Ground distribution system
• High
• Hot in accy or run
• I/p fuse block
• Logic
• Mist
• Mux1
• Mux2
• Off
• Pulse
• Red
• S118
• Underhood fuse block (on top of left front inner wheelwell)
• Washer switch
• Windshield washer fluid pump (in washer fluid reservoir, on left front of eng compt)
• Windshield wiper motor (on center of firewall)
• Wiper switch
• Wiper/ washer switch (part of multi- function switch)

Rear Wiper/Washer Wiring Diagram for Chevrolet Blazer 2005

List of elements for Rear Wiper/Washer Wiring Diagram for Chevrolet Blazer 2005:

• (no connection)
• (on left rear corner of vehicle, near c403) g450
• G102 (on rear of right cylinder head)
• Ground distribution system
• High
• Hot at all times
• Hot in accy & run
• I/p fuse block
• Logic
• Low
• Off
• Rear window washer fluid pump (left front of engine compartment)
• Rear window wiper cutout & liftglass ajar jamb switch (in liftgate)
• Rear window wiper motor controller (part of rear window wiper motor)
• Rear wiper/washer switch & endgate/liftgate window release switch
• Rr w/w fuse 15a
• Rr wpr fuse 23 15a
• S427
• Underhood fuse block (on top of left front inner wheelwell)
• Washer switch