Diagram sections — 29 (38 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Compressor Wiring Diagram for Chevrolet Classic 2004 List of elements for Compressor Wiring Diagram for Chevrolet Classic 2004: 20 A/c bfc fuse 37 10a A/c comp relay 16 A/c compressor clutch (lower left front of engine) A/c compressor clutch diode A/c refrigerant pressure sensor (right front of engine compt) A/c req A/c request sig Body control module (bcm) (below right side of dash, near blower motor) Class 2 serial data Clutch rly ctrl G103 Hot in run or start Hvac control assembly Left i/p fuse block (on left end of dash) Low ref Powertrain control module (pcm) (below left side of dash, near steering column) Sensor signal Splice pack sp103 (on rear transaxle to engine bolt) Underhood fuse block (on left side of engine compt) Volt ref Manual A/C Wiring Diagram for Chevrolet Classic 2004 List of elements for Manual A/C Wiring Diagram for Chevrolet Classic 2004: 76 (below right side of dash) blower motor (on left end of dash) left i/p fuse block 5 volt ref A/c bfc fuse 37 10a A/c comp diode A/c comp relay A/c compressor clutch (lower left front of engine) A/c refrigerant pressure sensor (right front of engine compt) A/c refrigerant pressure sensor signal A/c request A10 A11 Air temp door ctrl Air temperature actuator (right side of dash) B11 Bat pos volt Blower motor resistor assembly (below right side of dash) Blower switch Body control module (bcm) (below right side of dash, near blower motor) C10 Class 2 serial data Cool fan 1 fuse 8 30a Cool fan 1 relay Cool fan 2 fuse 52 15a Cooling fan 2 relay Cooling fan mode relay Ctrl clutch relay a/c compressor D10 D11 Defog on ind Defogger system Ect sens sig Engine coolant temperature (ect) sensor (on top left rear of engine) Exterior lights system F11 G103 G201 G202 G203 Ground Hi blo mot fuse 53 30a High speed cooling fan relay ctrl Hot at all times Hot in run Hot in run or start Htr a/c ign fuse 46 10a Hvac blower fuse c 20a Hvac blower relay Hvac control assembly Ign 3 voltage Illum Interior lights system Ipc/ hvac batt fuse 10a Left cooling fan (on left front of engine compt) Left i/p fuse block (on left end of dash) Logic Low ref Low reference Low speed cooling fan relay ctrl Off On ind Powertrain control module (pcm) (below left side of dash, near steering column) Rear defog request Right cooling fan (on right front of engine compt) Right i/p fuse block (on right end of dash) Rr defog ctrl Serial data class 2 Signal a/c request Sp103 (on rear transaxle to engine bolt) Sp201 (on left side of dash, near fuse block) Sp202 (on left side of dash, near fuse block) Sp203 (on right side of dash, near fuse block) Step dim Tan Thermal fuse Underhood fuse block (on left side of engine compt)
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram for Chevrolet Classic 2004 List of elements for Anti-lock Brakes Wiring Diagram for Chevrolet Classic 2004: 58 (below left side of dash, near steering column) powertrain control module (pcm) A10 A11 A12 Abs fuse 4 50a Abs ign fuse 40 10a Anti-lock brake warning indicator B10 B11 Battery Body control module (bcm) (below right side of dash, near blower motor) Brake pressure modulator valve (bpmv) Brake warning indicator C1 a1 C10 C11 Data link connector (dlc) (below left side of dash, near steering column) Electronic brake control module (ebcm) (inside left front fender) F12 G103 (on rear transaxle to engine bolt) Ground Hot at all times Hot in on or start Ignition Inflatable restraints sensing & diagnostic module (sdm) (under right front seat) Instrument panel cluster (ipc) Left front wheel speed sensor (on left front wheel hub) Left i/p fuse block Left i/p fuse block (on left end of dash) Left rear wheel speed sensor (on left rear wheel hub) Lf wheel spd (hi) Lf wheel spd (lo) Logic Lr wheel spd (hi) Lr wheel spd (lo) Nca Pnk Pump motor Radio Red Rf wheel spd (hi) Rf wheel spd (lo) Right front wheel speed sensor (on right front wheel hub) Right i/p fuse block (on right end of dash) Right rear wheel speed sensor (on right rear wheel hub) Rr wheel spd (hi) Rr wheel spd (lo) Serial data Serial data signal Sp103 Sp303 Spi serial data a Spi serial data b Stop lamp sw sig Stop lamp switch (on brake pedal support) Stop lps fuse 15a Tan Underhood fuse block (on left side of engine compartment)
ANTI-THEFT Anti-theft Wiring Diagram for Chevrolet Classic 2004 List of elements for Anti-theft Wiring Diagram for Chevrolet Classic 2004: 34 A/c bfc fuse 10a A10 A12 Anti-lock brakes system Body control module (bcm) (below right side of dash, near blower motor) Computer data lines system Data link connector (dlc) (below left side of dash, near steering column) G202 Gnd Hot in acc, run or start Hot in run or start Ign Ign (0) voltage Ign (1) Instrument panel cluster Ipc/bfc acc fuse 10a Left i/p fuse block (on left end of dash) Lock cylinder Logic Passlock gnd Passlock lock sensor Passlock ref v Passlock sig Pnk Powertrain control module Remote control door lock receiver (on rear package shelf) Serial data a Serial data b Serial data class 2 Sound systems Sp202 (on left side of dash, near fuse block) Srl data class 2 Theft system indicator Underhood fuse block (on left side of engine compt)
BODY CONTROL MODULES Body Control Modules Wiring Diagram for Chevrolet Classic 2004 List of elements for Body Control Modules Wiring Diagram for Chevrolet Classic 2004: 79 A/c bfc fuse 37 10a A/c switch request input A10 A11 A12 Air conditioning system Alc relay control Ambient lght snsr sig 5v ref Ambient light sensor signal Anti-theft system B10 B11 B12 Battery positive voltage Bfc batt fuse f 10a Body control module (bcm) (below right side of dash, near blower motor) Brake fluid level sensor sig Computer data lines system Coolant level switch (right front of engine compartment) Courtesy lamp low control Courtesy lamp power input Cruise fuse d 10a Door lock unlock Door locks system Dr lock ctrl Dr unlock ctrl Driver dr unlock ctrl Drl relay control Exterior lights system Fog light relay control Fog light switch input G101 (on left front strut tower) G202 (on left side of dash, near fuse block) Ground Headlights system High beam headlight input Horn rly ctrl Horns system Hot at all times Hot in acc, run or start Hot in run Hot in run or start Ignition 0 positive voltage Ignition 1 positive voltage Ignition 3 positive voltage Instrument cluster system Int lps fuse a 10a Interior lights system Ipc/bfc acc fuse j 10a Key in ignition input Left front door ajar input Left i/p fuse block (on left end of dash) Low beam headlight input Low engine coolant input Low washer solvent input Park brake input Park lamp sw sig on Park light input Park light relay ctrl Passenger door ajar input Pnk Right i/p fuse block (on right end of dash) Seat belt switch input Serial data Serial data spi clock Serial data spi data receive Serial data spi data transmit Sp101 Sp202 Theft battery voltage Theft low reference Theft sensor signal Trunk release relay ctrl Trunk release switch signal Trunk tailgate, fuel doors system Turn signal input Underhood fuse block (on left side of engine compartment) Warning system Wiper/washer system
COMPUTER DATA LINES Computer Data Lines Wiring Diagram for Chevrolet Classic 2004 List of elements for Computer Data Lines Wiring Diagram for Chevrolet Classic 2004: 18 (on front of engine, near starter) sp102 A12 Body control module (bcm) (below right side of dash, near blower motor) C3 a12 Data clss 2 Data link connector (dlc) (below left side of dash, near steering column) Electronic brake control module (ebcm) (inside left front fender) G102 G201 Hot at all times Inflatable restraint sensing & diagnostic module (sdm) (under right front seat) Ipc/hvac batt fuse 10a Left i/p fuse block (on left end of dash) Power distribution system Powertrain control module (pcm) Radio Remote control door lock receiver (on rear package shelf) Sp201 (on left side of dash, near fuse block)
COOLING FAN Cooling Fan Wiring Diagram for Chevrolet Classic 2004 List of elements for Cooling Fan Wiring Diagram for Chevrolet Classic 2004: 21 C10 Cool fan 1 fuse 8 30a Cool fan 1 relay 12 Cool fan 2 fuse 52 15a Cool fan 2 relay Cool fan mode relay D10 D11 Ect sens sig Engine coolant temperature (ect) sensor (on top left rear of engine) F11 G103 High speed cooling fan relay ctrl Hot at all times Left cooling fan (on left front of engine compt) Low ref Low speed cooling fan relay ctrl Powertrain control module (pcm) (below left side of dash, near steering column) Right cooling fan (on right front of engine compt) Sp103 (on rear transaxle to engine bolt) Underhood fuse block (on left side of engine compt)
CRUISE CONTROL Cruise Control Wiring Diagram for Chevrolet Classic 2004 List of elements for Cruise Control Wiring Diagram for Chevrolet Classic 2004: 56 (on left front strut tower) sp101 A1 c2 A11 B12 Body control module (bcm) (below right side of dash, near blower motor) Brake input 1 Brake input 2 C1 c3 C1 e6 C11 Computer data lines system Cruise control module (ccm) (on right side of engine compt) Cruise control on/off switch Cruise disable input Cruise disable output Cruise engaged input Cruise engaged output Cruise fuse 10a Cruise ind Cruise on input Cruise release Cruise sw fuse 2a Data a Data b F12 F6 c1 G101 Ground Hot at all times Hot in run Ignition Inflatable restraint steering wheel module coil Instrument panel cluster (ipc) Left i/p fuse block (on left end of dash) Logic Nca Off Pnk Powertrain control module (pcm) (below left side of dash, near steering column) R/a Resume/accel input Right i/p fuse block (on right end of dash) S/c Serial data Set/coast input Sp303 (under right front seat) Speed sig Stop lamp switch (on brake pedal support) Stop lamps fuse 15a Tcc/brake switch (on brake pedal support) Underhood fuse block (on left side of engine compt) Vehicle speed sensor (vss) (on rear of engine & transaxle) Vss high Vss input Vss low Vss output
DEFOGGERS Defoggers Wiring Diagram for Chevrolet Classic 2004 List of elements for Defoggers Wiring Diagram for Chevrolet Classic 2004: 32 A c2 A11 Air conditioning system C c2 C2 j C3 c12 Defog request Dim input Exterior lights system G202 G402 Ground Hot at all times Hot in run Htr a/c ign fuse 46 10a Hvac control assembly Ign Interior lights system K c2 Left i/p fuse block (on left end of dash) Logic On indicator Panel lamp Rear defogger switch Rear window defogger grid Relay ctrl Rr defog fuse 33 30a Rr defog relay Sp202 (on left side of dash, near fuse block) Sp402 (on right side of rear package shelf) Spi (bcm) Underhood fuse block (on left side of engine compt)
ENGINE PERFORMANCE
2.2L VIN F 2.2L VIN F, Engine Performance Wiring Diagram (1 of 3) for Chevrolet Classic 2004 List of elements for 2.2L VIN F, Engine Performance Wiring Diagram (1 of 3) for Chevrolet Classic 2004: 67 (below left side of dash) data link connector (under rear of vehicle) fuel tank pressure sensor 1-4 coil 2-3 coil 5 volt ref A/c cmp cltch rly A/c rps sig A/c system B11 B12 Batt voltage Class 2 ser data Cmp sen Cooling fans system Cruise control system Cruise fuse d 10a Cruise inhbt sig Csi pu Evap can vnt sol Evaporative emission canister purge solenoid (top left rear of engine) Evaporative emission canister vent solenoid (under rear of vehicle) Ftp sens sig Fuel lev sens Fuel pmp rly G103 Gnd Hi spd cl fan rly Hot at all times Hot in accy, run or start Hot in run Hot in run or start Iat sens sig Ic time Ic time b Ign 0 Ign 0 volt Ign 1 Ign 1 volt Ign mod fuse 10a Ignition coils Ignition control module (top left side of engine) Indicator Instrument cluster system (vehicle speed signal) Instrument panel cluster Intake air temperature (iat) sensor (in air intake duct, front of engine) Inter- connect Lamp Left i/p fuse block Left i/p fuse block (on left end of dash) Lo spd cl fan rly Low ref Malfunction Mil ctrl Pcm acc fuse g 10a Pcm batt fuse 10a Pcm ign fuse 10a Pnk Powertrain control module (below left side of dash) Right i/p fuse block (on right end of dash) Sp103 (on rear transaxle to engine bolt) Tan Tcc brake switch (on brake pedal support) Tcc brk sw Underhood fuse block Underhood fuse block (left side of engine compt) Volt Vss 2.2L VIN F, Engine Performance Wiring Diagram (2 of 3) for Chevrolet Classic 2004 List of elements for 2.2L VIN F, Engine Performance Wiring Diagram (2 of 3) for Chevrolet Classic 2004: 30 (in fuel tank) (on exhaust manifold) heated oxygen sensor 1 (rear of catalytic converter) heated oxygen sensor 2 (right front of engine) compt) a/c refrigerant pressure sensor (under right front seat sp302 Auto trans fuse 38 10a B12 C11 Erls fuse 47 10a F/p injr fuse 48 15a F9 c1 Fuel injectors (top front of engine) Fuel pump & sender assembly Fuel pump relay G102 G103 G302 Hot in run Hot in run or start Left i/p fuse block Manifold absolute pressure sensor (on top of engine) Nca Park/neutral position switch (side of transaxle) Pnk S101 Sp102 (on front of engine, near starter) Sp103 (left side of engine) Tan Underhood fuse block (left side of engine compt) Vehicle speed sensor (rear of transaxle) 2.2L VIN F, Engine Performance Wiring Diagram (3 of 3) for Chevrolet Classic 2004 List of elements for 2.2L VIN F, Engine Performance Wiring Diagram (3 of 3) for Chevrolet Classic 2004: 71 (left front of engine) crankshaft position sensor (n lower left side of engine) knock sensor (top center front of engine) throttle position sensor (top left rear of engine) engine coolant temperature sensor 1-2 shft sol vlv 1-2 shift sol 2-3 shft sol vlv 2-3 shift sol 5v ref At iss hi sig At iss low sig Automatic transaxle Automatic transaxle fluid pressure valve manual position switch Automatic transaxle input shaft speed sensor Ckp sen 1 sig Cmp sen sig Cruise control system Cruise engage sig Ect sen sig Evap can prg sol Fluid temp Fuel inj 1 Fuel inj 2 Fuel inj 3 Fuel inj 4 G102 Generator generator Gnd Ho2s hi sig b1s2 Ho2s hi sig b2s1 Ho2s htr hi b1s1 Ho2s htr lo b1s2 Ho2s lo sig b1s2 Ho2s lo sig b2s1 Iac coil a hi Iac coil a lo Iac coil b hi Iac coil b lo Ic timing ctrl Ic timing ctrl b Idle air control valve (on top front center of engine) Knock sen sig Low ref Map sen sig Nca Oil pressure switch Oil prss sw Pc sol vlv hi Pc sol vlv lo Pnk Pnk e Powertrain control module (below left side of dash) Press ctrl sol Red Red p Sp102 (on front of engine, near starter) Starting/ charging system Tan Tcc pwm sol Tcc pwm sol vlv Tcc rel sw sig Tfp sw sig b Tfp sw sig c Tft sen sig Tp sens Trs sig a Trs sig b Trs sig c Trs sig p Vss hi sig Vss lo sig
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for Chevrolet Classic 2004 List of elements for Backup Lamps Wiring Diagram for Chevrolet Classic 2004: 15 B/u lmp fuse 10a B11 G401 G402 (on right side of rear package shelf) Hot in run or start Left backup lamp Left tail/ stop & turn signal Park/neutral position (pnp) switch (on side of transaxle) Pnk Right backup lamp Right i/p junction block Right tail/ stop & turn signal Sp401 (on left side of rear package shelf) Sp402 Underhood fuse block (on left side of engine compt) Exterior Lamps Wiring Diagram for Chevrolet Classic 2004 List of elements for Exterior Lamps Wiring Diagram for Chevrolet Classic 2004: 61 A nca A10 A11 Alc park lamp ctrl relay 19 Alc park lmp cntrl B10 B11 Body control module (bcm) (below right side of dash, near blower motor) C10 C12 Center high mounted stop lamp (chmsl) G101 (on left front strut tower) G201 (on left side of dash, near fuse block) G202 (on left side of dash, near fuse block) G401 G402 (on right side of rear package shelf) Hazard Hazard lps fuse 10a Hazard switch Head Hot at all times Hot in run or start Instrument panel cluster (ipc) Interior lights system Left Left front marker lamp Left front park/turn signal lamp Left i/p fuse block (on left end of dash) Left rear turn lamp Left tail/ stop & turn signal lamps Left tail/stop & turn signal lamp Left turn ind License lamp Off Park Park lps fuse 15a Pnk Prk lmp rly Right Right front marker lamp Right front park/turn signal lamp Right i/p fuse block (on right end of dash) Right rear turn lamp Right tail/ a Right tail/stop & turn signal lamp Right turn ind Sp101 Sp201 Sp202 Sp303 (under right front seat) Sp401 (on left side of rear package shelf) Sp402 Spoiler center high mounted stop lamp (chmsl) Stop & turn signal lamps Stop lamp switch (on brake pedal support) Stop lps fuse 15a Timer Turn lps fuse 10a Turn sig in Turn signal/multi- function switch Underhood fuse block (on left side of engine compt)
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 2) for Chevrolet Classic 2004 List of elements for Ground Distribution Wiring Diagram (1 of 2) for Chevrolet Classic 2004: 53 (if equipped) electronic brake control module (ebcm) (on left end of dash) left i/p fuse block (on left side of engine compt) underhood fuse block A/t shift lock control solenoid A10 A12 Accessory power outlet Air temperature actuator B10 Battery Blower motor Body control module (bcm) Brake fluid level switch C1 d10 Cigar lighter Coolant level switch Cruise control module (ccm) Data link connector (dlc) Daytime running lamps (drl) resistor E10 Fog lamp switch G101 (on left front strut tower) G102 (on front of engine, near starter) G103 (on rear transaxle to engine bolt) G104 (left side of engine compt, near battery) G201 (on left side of dash, near fuse block) G202 (on left side of dash, near fuse block) G203 (on right side of dash, near fuse block) Hazard switch Horn assembly Hvac control assembly I/p compartment lamp/switch I/p dimmer switch Ignition control module (icm) Ignition switch Instrument panel cluster (ipc) Left front park/turn signal lamp Park/neutral position (pnp) switch Powertrain control module (pcm) Radio Rear compartment lid release switch Right cooling fan Right front park/turn signal lamp Splice pack sp101 Splice pack sp102 Splice pack sp103 Splice pack sp201 Splice pack sp202 Splice pack sp203 Turn signal/ multi-function switch Washer fluid level sensor Windshield washer fluid pump Windshield wiper motor assembly Ground Distribution Wiring Diagram (2 of 2) for Chevrolet Classic 2004 List of elements for Ground Distribution Wiring Diagram (2 of 2) for Chevrolet Classic 2004: 29 Center high mounted stop lamp (chmsl) Dome lamp Driver door ajar switch Driver door lock switch Driver window switch Front passenger door ajar switch Front passenger door lock switch Front passenger window switch Fuel pump & sender assembly G301 G302 (under right front seat) G401 G402 (under right front seat) Left rear door ajar switch Left tail/ stop & turn signal lamp License lamp Nca Outside rearview mirror switch Rear compartment lid release actuator Rear window defogger grid Remote control door lock receiver (rcdlr) Right rear door ajar switch Right tail/ stop & turn signal lamp Seat adjuster switch Seat belt switch Sp301 (under left front seat) Splice pack sp302 Splice pack sp401 (on left side of rear package shelf) Splice pack sp402
HEADLIGHTS Headlights Wiring Diagram for Chevrolet Classic 2004 List of elements for Headlights Wiring Diagram for Chevrolet Classic 2004: 65 (on left side of engine compt) underhood fuse block A10 A12 Alc relay Ambient light sensor (on top of dash trim pad) Automatic lamp control headlamp relay B12 c3 B3 c3 Body control module (bcm) (below right side of dash, near blower motor) C11 C4 c2 D11 Daytime running lamps (drl) resistor (on rear of front impact bar) Daytime running lamps relay Drl relay E12 E8 c2 F12 c2 F4 c1 F6 c2 Flash Fog lamp relay Fog lamp switch Fog lp relay Fog lp sw Fog lps fuse 10a G101 (on left front strut tower) G201 (on left side of dash, near fuse block) G202 (on left side of dash, near fuse block) Head High High beam in High beam ind Hot at all times Hot in run Htr a/c ign fuse 10a Illumination Instrument panel cluster (ipc) Interior lights system Ipc/ hvac bat fuse 10a Left front fog lamp Left high beam headlamp Left i/p fuse block (on left end of dash) Left low beam headlamp Lh hdlp fuse 15a Logic Low Low beam in Lt sen ret Lt sen sig Nca Off On indicator Park Pnk Rh hdlp fuse 15a Right front fog lamp Right high beam headlamp Right i/p fuse block (on right end of dash) Right low beam headlamp Serial data Sp101 Sp201 Sp202 Turn signal/ multi-function switch
HORN Horn Wiring Diagram for Chevrolet Classic 2004 List of elements for Horn Wiring Diagram for Chevrolet Classic 2004: 13 Body control module (bcm) (below right side of dash, near blower) C12 G101 (on left front strut tower) Horn assembly (inside right front fender) Horn fuse 43 15a Horn relay 21 Horn relay control Horn slip ring Horn switch Hot at all times Sp101 Turn signal/ multi-function switch Underhood fuse block (on left side of engine compartment)
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram for Chevrolet Classic 2004 List of elements for Instrument Cluster Wiring Diagram for Chevrolet Classic 2004: 95 (on rear transaxle to engine bolt) sp103 A10 A11 A12 Abs ind Abs ind ctrl Air bag ind Air bag ind ctrl B10 B11 B12 Battery Body control module (bcm) (below right side of dash, near blower motor) Brake fluid level switch (on brake master cylinder reservoir) Brake ind Brake ind ctrl C12 Check oil ind Check oil ind ctrl Computer data lines system Cool temp ind ctrl Coolant temperature gauge Cruise control system Cruise ind Cruise ind ctrl Door ajar ind Door ajar ind ctrl Engine control system Engine coolant temperature ind Engine oil level switch (rear of engine) Exterior lights system Fuel gauge Fuel pump & sender assembly (under rear of vehicle, in fuel tank) G102 (on front of engine, near starter) G103 G202 (on left side of dash, near fuse block) Ground High beam ind High beam ind ctrl Hot at all times Hot in accy, on or start Ignition Illumination (5 bulbs) Instrument panel cluster (ipc) Interior lights system Ipc/bfc acc fuse 10a Ipc/hvac batt fuse 10a Left i/p fuse block (on left end of dash) Left i/p junction block (on left end of dash) Left turn ind Logic Low coolant ind Low coolant ind ctrl Low fuel ind Low fuel ind ctrl Low ref Low washer ind Low washer ind ctrl Mil ctrl Oil press ind ctrl Oil pressure ind Oil pressure switch (if equipped) Park brake switch (on park brake assembly) Pnk Power distribution system Powertrain control module (pcm) (below left side of dash, near steering column) Right turn ind Seat belt ind Seat belt ind ctrl Sensor sig Serial data Serial data class 2 Serial data spi clock Serial data spi receive Serial data spi transmit Service engine soon ind Service vehicle soon ind Service vehicle soon ind ctrl Sig Sp 202 Sp102 Spare ind Spare ind ctrl Speed sig Speedometer Switch sig Tach input Tachometer Theft sys ind ctrl Theft system ind Trip reset Volts ind Volts ind ctrl Vss input Vss out
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Chevrolet Classic 2004 List of elements for Courtesy Lamps Wiring Diagram for Chevrolet Classic 2004: 41 A11 A12 B10 Battery positive voltage Body control module (bcm) (below right side of dash, near blower motor) C10 Dome lamp Door Door locks system Driver door ajar switch Front passenger door ajar switch G203 G302 G401 Hot at all times I/p compart- ment lamp switch If equipped Inadvertent power control Instrument panel cluster (ipc) Int lps fuse 10a Interior lamps control Left courtesy lamp Left front door ajar input Left i/p fuse block (on left end of dash) Left rear door ajar switch Off Rear compartment courtesy lamp Rear compartment lid release actuator (on rear compt lid) Rear view mirror reading lamps Right courtesy lamp Right front door ajar input Right i/p fuse block (on right end of dash) Right rear door ajar switch Right vanity mirror lamps Serial data spi data receive Serial data spi data transmit Sp203 (on right side of dash, near fuse block) Sp302 (under right front seat) Sp401 (on left side of rear package shelf) Spi data receive Spi data transmit Instrument Illumination Wiring Diagram for Chevrolet Classic 2004 List of elements for Instrument Illumination Wiring Diagram for Chevrolet Classic 2004: 50 (5 bulbs) (not used) A12 B12 Body control module (bcm) (below right side of dash, near blower motor) C12 C3 d8 Door locks system Driver door lock switch Driver window switch E11 E12 F12 Fog lamp switch From right i/p a fuse block (diagram 1 of 1) Front passenger door lock switch Front passenger window switch G201 G202 G301 G302 Hazard switch Head Hot at all times Hvac control assembly I/p dimmer switch I/p dimming module (on left side of dash) Inst lamps fuse a 10a Instrument panel cluster (ipc) Logic Off Outside rearview mirror switch Park Park lamps relay Park lps fuse 45 15a Pnk Power sunroof switch (if equipped) Radio Rear compartment lid release switch Right i/p fuse block (on right end of dash) Rly ctrl Sp201 (on left side of dash, near fuse block) Sp202 (on left side of dash, near fuse block) Sp301 (under left front seat) Sp302 (under right front seat) Sw sig To right i/p fuse block (diagram 1 of 1) Transaxle shift indicator lamp Turn signal/ multi-function switch Underhood fuse block (on left side of engine compartment)
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 2) for Chevrolet Classic 2004 List of elements for Power Distribution Wiring Diagram (1 of 2) for Chevrolet Classic 2004: 87 (not used) (on left end of dash) left i/p fuse block (on right end of dash) right i/p fuse block A11 A12 Abs fuse 50a Accessory power outlet Alc hdlp ctrl relay Alc park lmp ctrl relay Aux pwr/cigar fuse 20a B10 B11 Batt Battery Bfc batt fuse 10a Body control module (bcm) Brake pressure modulator valve (bpmv) C12 Cigar lighter Cool fan 1 fuse 30a Cool fan 2 fuse 15a Cool fan mode relay Cool fan relay 1 Cool fan relay 2 Data link connector (dlc) Door lock relay Door unlock relay Dr lock fuse 15a Driver door unlock relay E12 Fog lamps relay Fog lps fuse 10a From a abs fuse (diagram 1 of 2) From b cool fan mode relay (diagram 1 of 2) From c lh bec batt 1 fuse (diagram 1 of 2) Fusible link (5 ga-rust) G203 Gen batt fuse 10a Generator Hazard lps fuse 10a Hazard switch Hi blo mot fuse 30a Horn fuse 15a Horn relay Hvac blower relay Hvac control assembly Ign sw batt 1 fuse 40a Ign sw batt 2 fuse 30a Instrument panel cluster (ipc) Int lps fuse 10a Ipc/hvac batt fuse 10a Left high beam headlamp Left i/p fuse block (on left end of dash) Left low beam headlamp Lh bec batt 1 fuse 40a Lh bec batt 2 fuse 30a Lh hdlp fuse 15a Nca Outside rearview mirror switch Park lps fuse 15a Pcm batt fuse 10a Powertrain control module (pcm) Pwr mirror fuse 10a Pwr seat circuit breaker 25a Radio Rdo batt fuse 10a Rear compartment lid release relay Red Remote control door lock receiver Rh bec batt fuse 30a Rh hdlp fuse 15a Right high beam headlamp Right low beam headlamp Rr defog fuse 30a Rr defog relay Seat adjuster switch Sp203 (on right side of dash, near fuse block) Starter solenoid Stop lps fuse 15a Stoplamp switch To cool fan fuse (diagram 1 of 2) To hi blo mot fuse (diagram 1 of 2) To ign-sw batt 2 fuse (diagram 1 of 2) To ignition switch (diagram 2 of 2) Trunk rel/rfa fuse 10a Turn signal/ multifunction switch Underhood fuse block (on left side of engine compartment) Power Distribution Wiring Diagram (2 of 2) for Chevrolet Classic 2004 List of elements for Power Distribution Wiring Diagram (2 of 2) for Chevrolet Classic 2004: 71 (not used) (on left side of engine compt) underhood fuse block (on right end of dash) right i/p fuse block A/c bfc fuse 10a A/c comp relay A11 Abs ign fuse 10a Acc Air bag fuse 10a Air temperature actuator Alc prk lmp ctrl Auto trans fuse 10a Automatic transaxle B/u lmp fuse 10a Body control module (bcm) Brake pressure modulator valve (bpmv) C11 Cruise control module (ccm) Cruise control on/off switch Cruise fuse 10a Cruise sw fuse 2a Driver window switch E11 Erls fuse 10a Evaporative emission (evap) canister purge solenoid Evaporative emission (evap) canister vent solenoid F/p injr fuse 15a F11 From ign sw batt 1 fuse (diagram 1 of 2) From ign sw batt 2 fuse (diagram 1 of 2) From ignition switch (diagram 2 of 2) Fuel injectors Fuel pump relay Hazard switch Heated oxygen sensor (ho2s) sensor 1 Heated oxygen sensor (ho2s) sensor 2 Htr a/c ign fuse 10a Hvac blower fuse 20a Hvac control assembly Ign mod fuse 10a Ignition control module (icm) Ignition switch Inflatable restraint sensing & diagnostic module (sdm) Inflatable restraint steering wheel module coil Instrument panel cluster (ipc) Ipc/bfc acc fuse 10a Left i/p fuse block (on left end of dash) Lock Nca Off Park/ neutral position switch Park/neutral position (pnp) switch Pcm acc fuse 10a Pcm ign fuse 10a Pnk Powertrain control module (pcm) Pwr wndws circuit breaker 25a Red Rr defog relay Run S100 Start Tcc brake switch To f/p injr fuse (diagram 2 of 2) To htr a/c ign fuse (diagram 2 of 2) To hvac blower fuse (diagram 2 of 2) Turn lps fuse 10a Turn/ signal multifunction switch Underhood fuse block (on left side of engine compt) Windshield wiper motor assembly Wiper fuse 25a
POWER DOOR LOCKS Power Door Locks Wiring Diagram for Chevrolet Classic 2004 List of elements for Power Door Locks Wiring Diagram for Chevrolet Classic 2004: 44 (on right end of dash) right i/p fuse block A11 Body control module (bcm) (below right side of dash, near blower motor) C10 Computer data lines system Door lock ctrl Door lock fuse 15a Door lock relay Door signal lock/unlock Door unlock ctrl Door unlock relay Driv dr unlock ctrl Driver door lock actuator Driver door lock switch Driver door unlock relay E10 F10 Front passenger door lock actuator Front passenger lock switch G201 (on left side of dash, near fuse block) G301 (under left front seat) G302 (under right front seat) G402 (on right side of rear package shelf) Ground Hot at all times Interior lights system Left i/p fuse block (on left end of dash) Left rear door lock actuator Lock Remote control door lock receiver (on rear package shelf) Right rear door lock actuator Serial data sig Sp201 Sp301 Sp302 Sp402 Tan Trunk rel ctrl Trunk rel/rfa fuse 10a Trunk, tailgate, fuel doors system Unlock W/ rfa W/o rfa With remote function actuation
POWER MIRRORS Power Mirrors Wiring Diagram for Chevrolet Classic 2004 List of elements for Power Mirrors Wiring Diagram for Chevrolet Classic 2004: 16 +down vert +up +right horz +left B10 Driver outside rearview mirror G301 Hot at all times Interior lights system Left Left i/p fuse block (on left end of dash) Nca Outside rearview mirror switch Passenger outside rearview mirror Power mirror fuse d 10a Right Right/ left select switch Sp301 (under left front seat)
POWER SEATS Power Seat Wiring Diagram for Chevrolet Classic 2004 List of elements for Power Seat Wiring Diagram for Chevrolet Classic 2004: 21 +back +dn +fwd +up Back Forward Front down Front up Front vertical motor G301 Horizontal motor Hot at all times Left i/p junction block Nca Power seat circuit breaker 25a Rear down Rear up Rear vertical motor Seat adjuster switch Sp301 (under left front seat) Tan
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Chevrolet Classic 2004 List of elements for Power Top/Sunroof Wiring Diagram for Chevrolet Classic 2004: 30 (not used) A12 Battery Close Close input G401 Gnd Hot in run Interior lights system Limit switches Motor close Motor open Nca Open Open input Pnk Range input Red Right i/p fuse block (on right end of dash) Soft stop Soft stop input Sp401 (on left side of rear package shelf) Sun roof assembly Sun roof fuse h 20a Sun roof module Sunroof motor Sunroof opening position switch Sunroof switch Switch gnd Vent stop
POWER WINDOWS Power Windows Wiring Diagram for Chevrolet Classic 2004 List of elements for Power Windows Wiring Diagram for Chevrolet Classic 2004: 27 D c2 Down Driver window motor (front of left front door) Driver window switch Ecb Express Express down module Front passenger window motor (front of right front door) Front passenger window switch G301 Hot in run Illumination lamp Interior lights system Left front Left rear Left rear window motor Left rear window switch Lock out switch Power windows circuit breaker 25a Right front Right i/p fuse block (on right end of dash) Right rear Right rear window motor Right rear window switch Sp301 (under left front seat) Sp303 (under right front seat) Tan
RADIO Radio Wiring Diagram, with Amplifier for Chevrolet Classic 2004 List of elements for Radio Wiring Diagram, with Amplifier for Chevrolet Classic 2004: 52 A10 A11 A11 c3 A12 Antenna Audio amplifier B10 B11 B12 Battery voltage C1 a1 C10 C12 Class 2 data Computer data lines system Dim display in Exterior lights system G202 (on left side of dash, near fuse block) G203 (on right side of dash, near fuse block) G401 Gnd Ground Hot at all times Interior lights system Left front speaker Left i/p fuse block (on left end of dash) Left i/p fuse block (on light end of dash) Left rear speaker Left subwoofer (+) Left subwoofer (-) Lf speaker (+) Lf speaker (-) Lr speaker (+) Lr speaker (-) Nca Park lamp in Radio Radio battery fuse g 10a Rf speaker (+) Rf speaker (-) Right front speaker Right i/p fuse block (on right end of dash) Right rear speaker Right subwoofer (+) Right subwoofer (-) Rr speaker (+) Rr speaker (-) Sp202 Sp203 Sp401 (on left side of rear package shelf) Tan Trunk rel/rdo amp fuse b 10a Radio Wiring Diagram, without Amplifier for Chevrolet Classic 2004 List of elements for Radio Wiring Diagram, without Amplifier for Chevrolet Classic 2004: 42 A10 A11 A12 Antenna B10 B11 B12 Battery voltage C1 a1 C10 C12 Class 2 data Computer data lines system Dim display in Exterior lights system G202 (on left side of dash, near fuse block) G203 (on right side of dash, near fuse block) Gnd Ground Hot at all times Interior lights system Left front speaker Left i/p fuse block (on left end of dash) Left rear speaker Lf speaker (+) Lf speaker (-) Lr speaker (+) Lr speaker (-) Nca Park lamp in Radio Radio battery fuse g 10a Rf speaker (+) Rf speaker (-) Right front speaker Right i/p fuse block (on right end of dash) Right rear speaker Rr speaker (+) Rr speaker (-) Sp202 Sp203 Tan
SHIFT INTERLOCK Shift Interlock Wiring Diagram for Chevrolet Classic 2004 List of elements for Shift Interlock Wiring Diagram for Chevrolet Classic 2004: 10 A/t shift lock control solenoid (under center console, near gear shifter) B/u lmp fuse 42 15a G203 Hot in run or start Left i/p fuse block (on left end of dash) Park/neutral position (pnp) switch (on side of transaxle) Pnk Sp203 (on right side of dash, near fuse block) Stop lamp switch (open with brake pedal depressed) (on brake pedal support) Underhood fuse block (on left side of engine compartment)
STARTING/CHARGING Charging Wiring Diagram for Chevrolet Classic 2004 List of elements for Charging Wiring Diagram for Chevrolet Classic 2004: 24 (below right side of dash, near blower motor) body control module (bcm) A10 Battery Computer data lines system F input gen terminal Fusible link (10 ga- rust) G102 (on front of engine, near starter) G104 (left side of engine compt, near battery) Gen terminal l control Generator Hot in accy, run & start Instrument cluster Ipc/bfc acc fuse 10a Left i/p fuse block (on left end of dash) Logic Power distribution system Powertrain control module (pcm) (below left side of dash, near steering column) Red Serial data class 2 Spi clock Spi receive Spi transmit Starter solenoid Volts ind Starting Wiring Diagram for Chevrolet Classic 2004 List of elements for Starting Wiring Diagram for Chevrolet Classic 2004: 19 A11 Acc Battery F11 Fusible link (10 ga- rust) G102 (on front of engine, near starter) G104 (left side of engine compartment, near battery) Generator Ign sw batt 1 fuse 40a Ignition switch Lock Off Park/ neutral position (pnp) switch (on side of transaxle) Red Run Start Starter motor Starter solenoid Underhood fuse block (on left side of engine compartment)
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram for Chevrolet Classic 2004 List of elements for Supplemental Restraints Wiring Diagram for Chevrolet Classic 2004: 31 A10 A11 A12 A13 A14 A15 A16 A17 A18 Air bag indicator Airbag fuse e 10a Body control module (bcm) (below right side of dash) Case ground Class serial data Computer data lines system Hot in on or start Ignition Inflatable restraint i/p module Inflatable restraint sensing & diagnostic module (under right front seat) Inflatable restraint steering wheel module Inflatable restraint steering wheel module coil Instrument panel cluster (ipc) Left i/p fuse block (on left side of dash) Logic Module high Module low Nca Serial data Shorting bar Spi serial data a Spi serial data b
TRANSMISSION A/T Wiring Diagram for Chevrolet Classic 2004 List of elements for A/T Wiring Diagram for Chevrolet Classic 2004: 70 (on brake pedal support) tcc brake switch 1-2 shift sol 2-3 shift sol A/t sensor hi A/t sensor lo Anti- lock brakes system Auto trans fuse 38 10a Automatic transaxle (4t40-e/ 4t45-e) Automatic transaxle fluid pressure manual valve position switch Automatic transaxle fluid temperature sensor Automatic transaxle input shaft speed sensor B11 B12 Battery in Brake switch in C1 d2 Cruise fuse d 10a Data class ii Data link connector (below left side of dash) Dr sw Ect sensor in Engine coolant temperature sensor (top left rear of engine) G102 Gnd Hot at all times Hot in acc, run or start Hot in run Hot in run or start Ign 0 Ignition (1) in Ignition (2) in Instrument cluster Left i/p fuse block (left end of dash) Low ref Mal- function indicator lamp Mil ctrl Park/neutral position switch (side of transaxle) Pc sol hi Pc sol lo Pcm acc fuse g 10a Pcm batt fuse 44 10a Pcm ground Pcm ign fuse 39 10a Pnk Powertrain control module (below left side of dash) Pressure control sol Red Rev sw Right i/p fuse block (right end of dash) Sp102 (on front of engine, near starter) Tan Tcc pwm sol Tcc rel sw Tcc release in Tft sensor gnd Tft sensor in Throttle position sensor (top center front of engine) Tp 5v ref Tp sensor in Tps return Tr sw in-a Tr sw in-b Tr sw in-c Tr sw in-p Trans range b Trans range c Underhood fuse block (left side of engine compt) Vehicle speed sensor (rear of transaxle) Vss hi (signal) Vss lo (ground)
TRUNK, TAILGATE, FUEL DOOR Tailgate Release Wiring Diagram for Chevrolet Classic 2004 List of elements for Tailgate Release Wiring Diagram for Chevrolet Classic 2004: 20 A10 A9 c3 Body control module (bcm) (below right side of dash, near blower motor) C1 f3 G201 (on left side of dash, near fuse block) G202 (on left side of dash, near fuse block) G401 (on left side of rear package shelf) Ground Hot at all times Interior lights system Left i/p junction block (on left end of dash) Rear compartment lid release actuator (on rear compartment lid) Rear compartment lid release switch Sp201 Sp202 Sp401 Trunk rel/rfa/ rdo amp fuse 10a Trunk release Trunk release rly ctrl Trunk release sw sig
WARNING SYSTEMS Warning Systems Wiring Diagram for Chevrolet Classic 2004 List of elements for Warning Systems Wiring Diagram for Chevrolet Classic 2004: 69 A/c bfc fuse 37 10a A10 A11 A12 B10 B11 B12 B5 c3 Battery positive voltage Bfc batt fuse f 10a Body control module (bcm) (below right side of dash, near blower motor) C12 Computer data lines system Courtesy lamp low ctrl Cruise fuse d 10a Door ajar ind Door locks system Driver door ajar signal Driver door ajar switch Front passenger door ajar switch G202 G301 G302 Ground Head Hot at all times Hot in acc run or start Hot in run Hot in run or start Ign Ignition 0 voltage Ignition 1 voltage Ignition 3 voltage Ignition switch (key warning switch) Instrument panel cluster (ipc) Int lps fuse a 10a Interior lights system Ipc/bfc acc fuse j 10a Key in ignition sw signal Left i/p fuse block (on left end of dash) Left i/p junction block Left rear door ajar switch Logic Nca Off Park Park brake sw signal Park brake switch (on park brake assembly) Park lamp sw on signal Park lps fuse 45 15a Passenger door ajar switch Pnk Right i/p fuse block (on right end of dash) Right rear door ajar switch Seat belt ind Seat belt switch Seat belt switch signal Serial data (class 2) Serial data spi clock Sp202 (on left side of dash, near fuse block) Sp301 (under left front seat) Sp302 (under right front seat) Spi Spi serial data a Spi serial data b Spi serial data b spi Spi serial data clock Turn signal/ multi-function switch Underhood fuse block (on left side of engine compartment)
WIPER/WASHER Wiper/Washer Wiring Diagram for Chevrolet Classic 2004 List of elements for Wiper/Washer Wiring Diagram for Chevrolet Classic 2004: 31 (not used) Body control module (bcm) (below right side of dash, near blower motor) G101 (on left front strut tower) G201 (on left side of dash, near fuse block) High High speed Hot in acc or run Ign Instrument panel cluster (ipc) Left i/p fuse block (on left end of dash) Logic Low Low washer fluid input Low washer ind Mist Off Red Sp101 Sp201 Spi (bcm) Spi serial data a Spi serial data b Sw sig 1 Sw sig 2 Turn signal/ multi-function switch Washer fluid level sensor (inside washer fluid reservoir) Washer switch Windshield washer fluid pump (inside washer fluid reservoir) Windshield wiper motor assembly (on left rear of engine compartment) logic Wiper fuse 25a Wiper switch
