Diagram sections — 26 (44 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT COMPUTER DATA LINES 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 WINDOWS RADIO SHIFT INTERLOCKS STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Compressor Wiring Diagram for Chevrolet Astro 1999 List of elements for Compressor Wiring Diagram for Chevrolet Astro 1999: 30 A/c clutch diode (in underhood fuse-relay center) A/c comp fuse 10a A/c compressor clutch A/c enable A/c enable relay (in underhood fuse-relay center) A/c high pressure cut off switch (rear of a/c compressor) A/c low pressure cut off switch (top of a/c receiver dryer) A/c request A/c request c3 Bi-lv Blend Def G104 (right side of dash) Heat Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a Hvac control module I/p fuse block Ign-e fuse 10a Max Norm Off Pnk Pressure switch breakout) Underhood fuse-relay center Underhood fuse-relay center breakout) Vehicle control module (left side of engine compt) Vent Heater Wiring Diagram for Chevrolet Astro 1999 List of elements for Heater Wiring Diagram for Chevrolet Astro 1999: 41 (not used) (right side of dash) A/c maxi fuse 30a B red Bi-lv Blend Blower motor resistor and relay pack (mounted on right front of dash housing, between evaporator and front blower motor) C219 Convenience center Def Front blower motor G100 (right radiator support) G104 (right side of dash) G200 (right front "a" pillar) G201 G301 (above rear heater) Heat Heater control module Heater control valve solenoid (behind receiver/ dryer) Hot at all times Hot in run Htr-a/c fuse 12 20a I/p fuse block Interior lights system Med Off Rear heat-a/c relay (in underhood fuse-relay center) Rear heater blower motor Rear heater resistor pack (top rear heater core assembly) Rear heater switch Red Rr heat/a/c maxi fuse 30a S111 (engine harn, 17 cm from underhood fuse-relay center breakout) S111 (engine harn, 5 cm from underhood fuse-relay center breakout) S224 (i/p harn. 17 cm from headlamp switch connector breakout) S229 (i/p harness, 4 cm temperature control motor connector breakout) S238 (i/p harn, behind left side of dash) Tan Temperature control motor (behind right side of dash, left side of air duct) Underhood fuse-relay center Vent Manual A/C Wiring Diagram for Chevrolet Astro 1999 List of elements for Manual A/C Wiring Diagram for Chevrolet Astro 1999: 63 (eng harn, 5 cm from underhood fuse-relay center breakout) (right side of dash) A/c clutch diode (in underhood fuse-relay center) A/c comp mini fuse 10a A/c compressor clutch A/c enable A/c enable relay (in underhood fuse-relay center) A/c high pressure cut off switch (rear of a/c compressor) A/c low pressure cut off switch (top of a/c receiver dryer) A/c maxi fuse m3 30a A/c request B red Bi-lv Blend Blower motor resistor and relay pack (mounted on right front of dash housing, between evaporator and front blower motor) C218 C219 Convenience center Def Front blower motor G100 (right radiator support) G104 G104 (right side of dash) G200 (right front "a" pillar) G201 (right side of dash) G301 (above rear heater) G404 (below rear a/c blower) Heat Heater and a/c control valve solenoid (behind receiver/ dryer) Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a Hvac control module I/p fuse block Ign-e mini fuse 10a Interior lights system Max Med Norm Off Pnk Rear a/c blower motor Rear a/c resistor pack (above rear blower motor, in duct) Rear a/c switch Rear heat-a/c relay (in underhood fuse-relay center) Rear heater blower motor Rear heater resistor pack (top rear heater core assembly) Rear heater switch Red Rr heat/a/c maxi fuse 30a S111 S111 (eng harn, 17 cm from underhood fuse-relay center breakout) S111 (eng harn, 5 cm from underhood fuse-relay center breakout) S124 (engine harn, 13 cm from oil pressure switch breakout) S224 (i/p harness, 17 cm from headlamp switch connector breakout) S229 (i/p harn, 4 cm from temperature control motor connector breakout) S238 (i/p harn, behind left side of dash) Tan Temperature control motor (behind right side of dash, left side of air duct) Underhood fuse-relay center Vehicle control module (left side of engine compt) Vent
ANTI-LOCK BRAKES Anti-lock Brake Wiring Diagrams for Chevrolet Astro 1999 List of elements for Anti-lock Brake Wiring Diagrams for Chevrolet Astro 1999: 51 Abs fuse 60a Abs ind Abs ind lamp control B17 Battery Brake fuse 18 10a Brake ind Brake pedal position switch (above brake pedal) Brake pressure warning switch (on brake pressure modulator valve assembly Brake sw input Brake sw output Cruise control system Data link connector (under left side of dash) Daytime running lamp control module (behind left side of dash) Electronic brake control module (on left front side of frame, left of transmission) Engine control system G114 (lefr rear of engine) Gauges fuse 4 10a Ground Hot at all times Hot in run Hot in run and start I/p fuse block (behind left side of dash) Ignition Instrument cluster Left front wheel speed sensor Nca Overhead console Passlock module (behind air duct, right of instrument cluster) Pnk Red Right front wheel speed sensor S112 (engine harn, 48.5 cm from c100 breakout toward engine) S113 (engine harn, 10.5 cm from underhood fuse/ relay center) S114 S127 S213 S233 (i/p harn, 6.5 cm from data link connector breakout) Sensor high Sensor low Serial data Serial data line Signal ground Tan Underhood fuse/relay center (left side of firewall) Vehicle control module (left side of engine compt) Vehicle speed input Vehicle speed sensor (on rear of transmission) Vehicle speed sig Vss (+) Vss (-)
ANTI-THEFT Anti-theft Wiring Diagram for Chevrolet Astro 1999 List of elements for Anti-theft Wiring Diagram for Chevrolet Astro 1999: 32 (i/p harn, 6.5 cm from dlc breakout) (left rear of engine block) 12v 12v ref 5 volt ref B17 Capacitor (0.47 mf) Data link connector (dlc) (under left side of dash) Electronic power steering system G114 Gauges fuse 4 10a Grd Hot at all times Hot in run or start I/p fuse block Ign Instrument cluster Nca Passlock module (behind air duct, right side of instrument cluster) Passlock sensor (in steering column, near lock cylinder) Passlock sig Passlock signal Pnk Resistor (10 ohms) S213 S233 Sec ind out Security fuse 21 10a Security indicator Sens ret Sensor grd Serial data
COMPUTER DATA LINES Computer Data Lines for Chevrolet Astro 1999 List of elements for Computer Data Lines for Chevrolet Astro 1999: 25 (engine harness, 10 cm from underhood fuse-relay center breakout) s113 9600 uart Automatic transfer case shift control module (behind left kick panel) Aux pwr fuse 7 25a C224 Convenience center Data class Data clss 2 Data link connector (dlc) (under left side of dash) Electronic brake control module (ebcm) (on left front side of frame, left of transmission) G116 (left side of firewall, above battery) G125 (front of engine, near thermostat housing) Hot at all times I/p fuse block Overhead console Passlock module (behind air duct, to right of instrument cluster) Prog enable Remote control door lock receiver (behind air duct, right of instrument cluster) S204 S206 S210 S233 (dash harness, 6 cm from dlc breakout) Serial data Tan Vehicle control module (vcm) (left side of engine compt)
CRUISE CONTROL Cruise Control Wiring Diagram for Chevrolet Astro 1999 List of elements for Cruise Control Wiring Diagram for Chevrolet Astro 1999: 42 A12 A13 A14 A15 Brake fuse 18 10a Brake pedal position switch (above brake pedal) Brake sw input Chmsl resistor (left kick panel) Cruise control module (center front of dash) Cruise control switch Cruise engaged Cruise fuse 6 10a Cruise on/off input Cruise release sw Engine control system Exterior lights system G116 (left side of firewall, above battery) G125 (front of engine near thermostat housing) Ground Hot at all times Hot in run I/p fuse block (behind left side of dash) Ignition Nca Off R/a Resume/accel input S/c S117 S130 (front of dash, 32 cm from forward lamp harness breakout) S200 (i/p harness, 16 cm from i/p fuse block breakout) S204 S206 S221 Set/coast input Sound system Stop/haz fuse 1 20a Vehicle control module (vcm) (left side of engine compt) Vehicle speed sensor (vss) (rear of transmission) Vss high Vss low Vss signal
DEFOGGERS Defogger Wiring Diagram for Chevrolet Astro 1999 List of elements for Defogger Wiring Diagram for Chevrolet Astro 1999: 21 (right front "a" pillar, above right door jamb switch) (upper half of right "d" pillar) g998 C1 c Defogger on ind. G901 Hot at all times Hot in run Htd mir/ rr-defog fuse 40a Htr-a/c fuse 12 20a Hvac control module I/p fuse block (behind left side of dash) Rear defogger switch Rear defogger timer relay Rear window defogger grid Red Rr defog fuse 5 30a S229 S244 S407 Timer Underhood fuse/relay center (on left side of firewall)
ENGINE PERFORMANCE
4.3L 4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Astro 1999 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Astro 1999: 62 (eng harn, 6cm from trans breakout toward front of eng) (engine harn, 26 cm from vcm conn c1 breakout) (engine harn, 5 cm from vcm conn c1 breakout) (on frame rail by fuel filter) evaporative emission canister vent valve (on left rear of throttle body) idle air control valve 1-2 shift sol. ctrl 2-3 shift sol. ctrl 3-2 ctrl sol. ctrl Bank no1 heated oxygen sensor n 1 (left front exhaust y-pipe) Bank no2 heated oxygen sensor no1 (right front exhaust y-pipe closest to exhaust manifold) Cam posit sens rtn Cam posit sens sig Camshaft position sensor (side of distributor) Crank posit sens sig Crankshaft position sensor (behind and to right of engine crankshaft pulley) Ect sens input Egr pintle pos Evap can vent valve Fuel lev output G114 (left rear of engine block, next to knock sensor) G201 (right side of dash, above blower motor) Hall effect sensor Iat temp sens sig Idle air ctrl (iac) a hi Idle air ctrl (iac) b lo Inj 1 ctrl Inj 2 ctrl Inj 3 ctrl Inj 4 ctrl Inj 5 ctrl Inj 6 ctrl Instrument cluster system Knock sens sig Knock sensor (left rear of distributor on engine block) Left sens hi Left sens lo Map sens input Mass air flow sens Nca Pnk Pnk c Post-catalyst sens hi Post-catalyst sens lo Right sens hi Right sens lo S124 S126 S127 S151 S152 Tan Tank vac sig Tcc on/off sol. ctrl Tcc pwm sol ctrl Throttle posit sens Trans temp sens sig Twisted wire pair Vehicle control module (vcm) (left side of engine compartment) Vehicle spd sense sig Vehicle speed sensor (rear of transmission) Vss rtn Vss signal 4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Astro 1999 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Astro 1999: 36 (engine harn, 26.5 cm from vcm conn c1 breakout) 1-2 shift sol. 2-3 shift sol. 3-2 control sol. Automatic transmission Automatic transmission fluid pressure manual valve position switch Bank no1 heated oxygen sensor no3 (exhaust pipe, between catalytic converter & muffler) D2 sw D3 sw D4 sw Ecm-1 fuse 20a Eng-1 fuse 20a Evaporative emissions canister purge solenoid valve (top of engine, next to map sensor) Fuel inj. no.1 Fuel inj. no.2 Fuel inj. no.3 Fuel inj. no.4 Fuel inj. no.5 Fuel inj. no.6 Hot in run or start Linear egr valve solenoid (top of engine, left of generator) Lo sw Nca Pnk Pressure control solenoid valve Red Rev sw S116 S119 S123 S153 Tan Tcc on/off sol. Tcc pwm sol. Transmission fluid temperature sensor Underhood fuse/relay center 4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Astro 1999 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Astro 1999: 43 (eng harn, 6cm from generator breakout, toward rear of eng) (eng harn, 6cm from linear egr valve sol breakout) (right side of dash, above blower motor) g201 (right side of left frame rail) g113 12v in B14 B17 Ecm b f11 Engine coolant temperature sensor (on side of linear egr valve solenoid, top of engine) Fuel pump & sender (inside fuel tank) Fuel pump relay Fuse 20a G12 G134 (thermostat housing) Gauge input oil pressure Gauges fuse 4 10a Gnd Hot at all times Hot in off, run or start Hot in run or start I/p fuse block Input odometer speedometer & Instrument cluster Intake air temperature sensor (top of air intake duct) Maf sig Malfunction indicator lamp (mil) Manifold absolute pressure sensor (top of engine, near ignition coil) Mass air flow sensor (maf) (front of air intake duct) Oil pressure switch & sender (on top rear of engine) Pnk Red S109 S111 S117 S118 S120 S122 (eng harn, 12cm from generator breakout) S213 Tan Tan a Throttle position sensor (top of engine, left side of throttle body) Trans fuse 20 10a Underhood fuse/relay center 4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Astro 1999 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Astro 1999: 66 (eng harn, 10cm from bulkhead conn left side of dash) (eng harn, 4cm from under- hood fuse/relay center breakout) (front of dash, 32cm from lamp harn breakout) s130 (i/p harn, 4cm from cluster breakout) 5v ref. voltage 5v return A/c relay ctrl A/c request (hi) A/c request (lo) Air conditioning system Brake sw input Brake switch input C217 Check eng lp out Compass & temperature display module Convenience center (left side of i/p fuse block, by kick panel) Cruise control module (center front of dash, left of windshield wiper module) Cruise engaged Cruise engaged sig Data link connector (dlc-partial) (lower left side of dash) Distributor (top rear of engine) Egr pos voltage Egr valve ctrl Electronic brake control module (left front side of frame, left of transmission) Est output sig Fuel level input Fuel pump rly ctrl Fused ign (run) Fused ign (run/start) G114 (left rear of eng block next to knock sensor) Ground High voltage coil wire Hot in run I/p fuse block Ign input Ign timing sig. Ignition coil (top of engine, behind generator) Ignition control module (top of engine, front of coil) Ignition feed M4 brake fuse 18 10a n3 Nca Overhead console Pnk Pnk a Power b(+) Press ctrl sol lo Press ctrl sol. hi Radio Red S112 S113 (eng harn, 10cm from underhood fuse/relay center breakout) S114 S117 S218 S233 (i/p harn, 6.5 cm from dlc) Serial data sig Spark plugs Tach. sig. Trans press sig-bit 1 Trans press sig-bit 2 Trans press sig-bit 3 Vehicle control module (vcm) (left side of engine compartment, side of battery) Vss in Vss input Vss sig Vss signal
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Chevrolet Astro 1999 List of elements for Back-up Lamps Wiring Diagram for Chevrolet Astro 1999: 12 G998 (upper half of right "d" pillar) G999 (upper half of left "d" pillar) Hot in run, bulb test or start I/p fuse block Left back-up lamp Park/neutral position & back-up lamp switch (left center of transmission) Pnk Right back-up lamp S319 S321 S403 Turn b/u fuse 16 20a Exterior Lamps Wiring Diagram for Chevrolet Astro 1999 List of elements for Exterior Lamps Wiring Diagram for Chevrolet Astro 1999: 72 (i/p harn, 11 cm from i/p to steering column conn breakout) s212 (i/p harn, 6 cm from instrument cluster conn breakout) s211 (i/p harness, 16 cm from i/p fuse block breakout) s200 (i/p harness, 3 cm from instrument cluster conn breakout) s217 (i/p harness, 4 cm from i/p to steering column conn breakout) s208 (right "d" pillar, 11 cm from right rear door breakout) s401 A10 All wire leads are taped and are to be spliced to trailer wiring harness or connector. Backup lamps circuit Brake pedal position (bpp) switch (above brake pedal) C206 Center high mounted stop lamp (chmsl) Chmsl resistor (on left kick panel) Convenience center (near left kick panel) Cruise control system G108 (left front radiator support) G116 (left side of firewall, above battery) G125 (front of engine, near thermostat housing) G1o9 (right front radiator support) G998 (upper half of right "d" pillar) G999 (upper half of left "d" pillar) Haz sw Hazard Head Headlamp & panel dimmer switch Hot at all times Hot in run or start I/p fuse block Instru- ment cluster Interior lights system Left front park/ turn lamp Left front side marker lamp Left rear side marker lamp Left tail/ stop/ turn lamp Left turn ind. Left turn switch License lamp Nca Normal Off Park Park lps fuse 9 20a Pnk Red Right front park/ turn lamp Right front side marker lamp Right rear side marker lamp Right tail/ stop/ turn lamp Right turn ind. Right turn switch S101 (forward lamp harness, 4 cm from right park/ turn lamp breakout) S102 (forward lamp harness, 25 cm from left park/ turn lamp breakout) S103 (forward lamp harn, 12 cm from left headlamp breakout) S104 S117 S204 S206 S221 S303 S319 S320 (left "d" pillar, 46 cm from body ground breakout) S400 (rear top of vehicle, 13 cm from chmsl breakout) S402 (right "d" pillar, 4 cm from right rear door harn breakout) S403 Sound systems Stop/ haz fuse 1 20a Tn sw Turn- b/u fuse 16 20a Turn/ hazard switch Turn/hazard flasher module (on convenience center) Underhood fuse-relay center (on left side of firewall) Upfit-bat maxi fuse p8 30a
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 2) for Chevrolet Astro 1999 List of elements for Ground Distribution Wiring Diagram (1 of 2) for Chevrolet Astro 1999: 62 (left "b" pillar, 10 cm from side door harness breakout) (vanity mirror harness, 7 cm from left vanity mirror breakout) A/c compressor clutch A/c compressor clutch diode 1 A/c low pressure cut-off switch Ambient temperature sensor Audio alarm module B13 Bank 1 heated oxygen sensor 1 Bank 1 heated oxygen sensor 3 Bank 2 heated oxygen sensor 1 Brake/ transmission shift interlock solenoid C209 C218 C219 C222 Chmsl resistor Compass and temperature display module Convenience center Cruise control module Data link connector Daytime running lamps module Driver seat adjuster switch Front windshield washer pump motor Fuel pump relay G114 (left rear of engine block) G116 (left side of firewall, above battery) G125 (front of engine, near thermostat housing) G201 (right side of dash) Headlamp and panel dimmer switch Heater and a/c control valve solenoid Ignition control module Ignition switch Instrument cluster Left front power window switch Left outside rear view mirror Left power door lock switch Left vanity lamp Mass air flow sensor Nca Outside rearview mirror control switch Park/neutral position and backup lamp switch Passenger seat adjuster switch Passlock module Rear a/c switch Rear heater switch Rear heater/ a/c relay Rear radio control module Right vanity lamp S111 (engine harness, 5 cm from underhood fuse-relay center) S124 (engine harness, 13 cm from oil pressure switch breakout) S204 (i/p harness, 9 cm from breakout to lower steering column connector) S206 (i/p harness, 3 cm from bulkhead connector) S236 S315 S504 (left door harness, 4 cm from power door lock switch connector breakout) Starter enable relay Steering column ground Turn/ hazard flasher module Underhood fuse-relay center Upfitter ignition relay Vehicle control module Ground Distribution Wiring Diagram (2 of 2) for Chevrolet Astro 1999 List of elements for Ground Distribution Wiring Diagram (2 of 2) for Chevrolet Astro 1999: 95 (forward lamp harness, 11 cm from left park/turn lamp breakout) (left front "a" pillar, above left door jamb switch) (left rear of vehicle) (right front "a" pillar, above right door jamb switch) (right front radiator support) (right side of left frame rail) (upper half of left "d" pillar) (upper half of right "d" pillar) Ashtray lamp Battery Blower motor resistor and relay pack Brake pressure warning switch Center dome/ reading lamp Center high mounted stop lamp Cigarette lighter Door lock control module Door lock relay Electronic brake control module Engine cover ground Front auxiliary power outlet 1 Front auxiliary power outlet 2 Front dome/ reading lamp Front dome/ reading lamps Front windshield washer pump Fuel pump G108 (left front radiator support) G108 (left side radiator support) G109 G113 G114 (left rear of engine) G120 (lower right side of engine block) G402 G404 G900 G901 G998 G999 Hvac control module I/p compartment lamp Interior lamp control module Left backup lamp Left front park/turn lamp Left front side marker lamp Left hi/lo beam headlamp Left high beam headlamp Left horn Left liftgate strut switch Left low beam headlamp Left rear side marker lamp Left tail/ stop/turn lamp License lamp Liftgate lock/ unlock relay Nca Radio Rear a/c blower motor Rear auxiliary power outlet Rear door jamb switch Rear heater blower motor Rear liftgate release solenoid Rear window defogger grid Rear window washer pump Rear window wiper/ washer module Rear window wiper/ washer switch Remote control door lock receiver Right backup lamp Right front park/ turn lamp Right front power window switch Right front side marker lamp Right hi/lo beam headlamp Right high beam headlamp Right horn Right low beam headlamp Right outside rearview mirror Right power door lock switch Right rear side marker lamp Right tail/stop turn lamp S100 (forward lamp harness, 8 cm from right head- lamp breakout) S104 S127 (engine harness, 25 cm from brake pressure modulator valve breakout) S229 (i/p harness, 6 cm from dlc connector breakout) S234 (i/p cowl harness, 16 cm from cigarette lighter breakout) S319 (left rear "d" pillar, 10 cm from breakout to ground) S333 (engine harn, near vehicle speed sensor connector) S403 (right rear "d" pillar, 4 cm from right rear door breakout) S407 (6 cm from right liftgate strut switch breakout) S601 (right door harness, 4 cm from power door lock switch connector) Seat belt retractor switch Sub- woofer amplifier Temperature control motor Upfitter connector Vehicle speed sensor shield W/ cargo doors W/ composite lamps W/ dutch doors W/ sealed beam lamps
HEADLIGHTS Headlight Wiring Diagram for Chevrolet Astro 1999 List of elements for Headlight Wiring Diagram for Chevrolet Astro 1999: 64 (forward lamp harn, 10cm from left headlamp breakout) s105 (forward lamp harn, 4cm from left head- lamp breakout) s106 (lower side of left b-pillar) A17 Abs in Acc Anti-lock brake system B17 Brake ind Bulb test Composite headlamps Daytime running lamps module (left side of dash, taped to main harness) Daytime running lamps relay (lower right side of convenience center) Drl diode Drl fuse 15 20a Drl indicator Drl relay ctrl G108 (left front radiator support) G109 (right front radiator support) G116 (left side of firewall, above battery) Gauges fuse 4 10a Ground Head Headlamp & panel dimmer switch Headlamp dimmer switch Headlamps Hi beam indicator Hot at all times Hot in run, bulb test or start I/p fuse block (behind left side of dash) Ign sw in Ignition Ignition switch Instrument cluster Instrument cluster system Left headlamp Left high beam headlamp Left low beam headlamp Lighting maxi fuse 40a Lock Nca Off Park Park brake in Park brake indicator switch (on parking brake assembly) Pnk Red Right headlamp Right high beam headlamp Right low beam headlamp Run S100 S104 S105 (forward lamp harn, 10cm from left headlamp breakout) S135 (front of dash, 4cm from forward lamp harn breakout) S206 S207 S213 S215 (i/p harn, 17cm from headlamp sw breakout) S216 (i/p harn, 9cm from cluster breakout toward left side of dash) Sealed beam headlamps Start Tan Underhood fuse/relay center (left side of firewall)
HORN Horn Wiring Diagram for Chevrolet Astro 1999 List of elements for Horn Wiring Diagram for Chevrolet Astro 1999: 18 (forward lamp harness, 60 cm from left headlamp breakout) s107 (left front radiator support) g108 (right front radiator support) g109 Convenience center (left of i/p fuse block, near left kick panel) Horn mini fuse 20a Horn relay Horn switch Hot at all times Left horn (center of radiator support) Nca Right horn (center of radiator support) S100 S104 S327 Slip ring Turn signal cancel cam Turn/hazard switch Underhood fuse/relay center
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram for Chevrolet Astro 1999 List of elements for Instrument Cluster Wiring Diagram for Chevrolet Astro 1999: 97 (6 bulbs) (dash harn, 4cm from cluster connector breakout) (eng harn, approx 6 cm from generator breakout toward rear of eng) (left side of fire- wall, above battery) g116 10k A10 A11 A12 A13 A14 A15 A16 A17 Abs warning indicator Accy Air bag ind Anti-lock brakes system Anti-theft system Automatic transfer case shift control module (behind left kick panel) B10 B11 B12 B13 B14 B15 B16 B17 Brake ind Brake pressure warning switch (on brake pressure modulator valve assembly) Brake psi Brake warning indicator C224 Charge ind Check gages ind Check gages lamp driver Daytime running lamp module (behind left side of dash, taped to main harness) Drl/park brake indicator (w/ drl) Electronic brake control module (ebcm) (on left front side of frame, left of trans) Engine coolant temperature gauge sensor (on left side of engine block) Exterior lights system Fuel gage Fuel pump and sender (in fuel tank) Fuel sig Fuel sig in G114 (left rear of eng block, next to knock sensor) G114 (left rear of engine) G116 (left side of firewall, above battery) G125 (front of engine, near (thermostat housing) G125 (front of engine, near thermostat housing) Gauges fuse 4 10a Headlights system High beam indicator Hot in off, run or start Hot in run or start I/p fuse block (behind left side of dash) Ign sw Ignition switch Illumin- ation lamps Instrument cluster Interior lights system Left turn indicator Lock Mil ind Nca Off Oil pressure gage Oil pressure switch & sender (on top rear of engine) Park brake warning switch (on parking brake assy) Park/neutral position & backup lamp switch (on left center of transmission) Pk brake sw Pnk Prnd321 & odometer circuitry Right turn indicator Run S117 S120 S127 S204 S206 S213 S218 Seat belt indicator Security ind Service engine soon indicator Servive a4wd ind Speedo Speedometer Start Starting/charging system Temperature gage Trans fuse 20 10a Twisted pair Vehicle control module (left side of engine compt) Vehicle speed sensor (on rear of transmission) Voltmeter Vss Warning system Overhead Console Wiring Diagram for Chevrolet Astro 1999 List of elements for Overhead Console Wiring Diagram for Chevrolet Astro 1999: 22 (dash harn, 4cm from cluster connector breakout) s218 Amb temp Ambient air temperature sensor (center of core support, in front of radiator) C207 Compass and temperature display module (located in overhead console assy) Convenience center (left of i/p fuse block, near left kick panel) G125 (front of engine, near thermostat housing) Gauges fuse 4 10a Ground Hot in run or start I/p fuse block (behind left side of dash) Ignition Illum Interior lights system Nca Pnk S204 S213 S315 (w/ rear radio controls only) Speedo Vehicle control module (left side of engine compt) Vss
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram (1 of 2) for Chevrolet Astro 1999 List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Chevrolet Astro 1999: 53 (left door harn, 4 cm from power door lock switch s505 breakout) (not used) (roof of vehicle, 4 cm from mid dome lamp breakout) (vanity mirror harn, 7.5 cm from left vanity mirror breakout) C209 Cargo van Cargo van base Center dome lamp Center dome/ reading lamps Console option passenger & cargo vans Convenience center (left kick panel) Cover switch Ctsy fuse 3 20a Dome lamp Front dome lamp Front dome/ reading lamps G116 (left side of firewall, above battery) G901 (right front "a" pillar, above right door jamb switch) G999 (upper half of left "d" pillar) Hot at all times I/p compartment lamp I/p fuse block Left courtesy lamp Left door courtesy lamp Left vanity lamp Map lights Mirrors system Nca Overhead console Passenger van Passenger van base Passenger van only Reading lamp Reading lamp switches Rear dome lamp Right courtesy lamp Right door courtesy lamp Right step- well lamp Right vanity lamp S206 S214 (i/p harn, 10.5 cm from headlamp switch breakout) S220 S234 S236 S237 S307 (roof of vehicle, 10.5 cm from mid dome lamp breakout) S308 S319 W/ console W/ door courtesy lamps only W/ power mirror W/o power mirror W/o rke Courtesy Lamps Wiring Diagram (2 of 2) for Chevrolet Astro 1999 List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Chevrolet Astro 1999: 55 (i/p harn, 2.5 cm from instrument cluster breakout) s217 (left door harn, 6.5 cm from power window motor breakout) s503 (left kick panel, 13.5 cm from park brake switch breakout) s306 (right door harn, 20.5 cm from power door lock switch breakout) s605 Ash tray lamp C300 C401 Dome lamp switch Domelamp defeat switch Door lock control module (behind right kick panel) Exterior lights system G114 (left rear of engine block) G116 (left side of firewall, above battery) G901 (right front "a" pillar, above right door jamb switch) G999 (upper half of left "d" pillar) Gauges fuse 4 10a Headlamp & panel dimmer switch Hot at all times Hot in run or start I/p fuse block Illuminated entry Interior lamp control module (w/o rke) (behind lower left side of dash, mounted to dlc bracket) Left door jamb switch Left front power window master switch Left liftgate strut switch Left power door lock switch Nca Outside rear- view mirror control switch Park lamp switch Pk lps fuse 9 20a Pnk Rear door jamb switch Rear radio control module (on left side of vehicle, behind left "b" pillar) Remote control door lock receiver (behind air duct, right of instrument cluster) Right door jamb switch Right front power window switch Right power door lock switch S117 S206 S213 S229 S315 S319 S401 (right rear "d" pillar, 10.5 cm from right rear door breakout) S504 S601 Side door jamb switch Tan W/ cargo doors W/ liftgate W/ power mirrors W/ rear radio control only W/ rke W/o rke Warning system Instrument Illumination Wiring Diagram for Chevrolet Astro 1999 List of elements for Instrument Illumination Wiring Diagram for Chevrolet Astro 1999: 50 (i/p harn, 3.5 cm from headlamp sw conn breakout) s222 Audio alarm module B12 B13 C207 C207 a C218 C219 C219 a Compass and temperature display module Convenience center (left kick panel) Convenience center (left of dash fuse block, by left kick panel) Dis dim sig Dome lamp switch G114 (left rear of engine block) G116 (left side of firewall, near battery G116 (left side of firewall, near battery) G901 (right front "a" pillar, above right door jamb switch) Gauges fuse 4 10a Headlamp and panel dimmer switch Heater and a/c control module Home link Hot at all times Hot in run or start I/p fuse block Illum fuse 14 10a Instrument cluster Interior lamp dimmer Led Nca Overhead console Parade mode switch Park lamps switch Pk lps fuse 9 20a Pnk Prnd321 indicator Radio Rear a/c switch Rear heater switch Rear radio control module (on left side of vehicle, behind "b" pillar) Rear window wiper/ washer switch Remote cd player S117 S204 S206 S213 S219 S229 S315 W/ rear radio control only
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 3) for Chevrolet Astro 1999 List of elements for Power Distribution Wiring Diagram (1 of 3) for Chevrolet Astro 1999: 106 (4cm from mid dome lamp breakout) s308 (i/p harness, 10.5cm from cluster breakout) s220 (i/p harness, 10cm from headlamp switch breakout) (i/p harness, 17 cm from cluster breakout) (i/p harness, lower half of steering column) s209 red (i/p harness, lower half red of steering column) (left door harness, 4 cm from power door lock switch connector breakout) (left door harness, 6 cm from outside rearview mirror breakout) (left kick panel) (power seat harness, 7 cm from left power seat breakout) (right door harness, 43cm from power door lock switch breakout) (vanity mirror harness, 7 cm from left vanity mirror breakout) s237 A/c comp mini fuse 10a A/c enable relay A/c maxi fuse 30a A/c relay A12 Abs maxi fuse 60a Atc mini fuse 20a Audio alarm module Automatic transfer case shift control module Aux pwr fuse 7 25a Batt maxi fuse 50a Battery Blower motor resistor and relay pack Brake pedal position switch C207 C222 Center dome lamp (cargo van) Center dome/ reading lamps Cig ltr fuse 13 20a Cigarette lighter Convenience center Ctsy fuse 3 20a Data link connector Daytime running lamp diode Door lock control module Door lock relay Driver seat adjuster switch Drl fuse 15 20a Ecm-b mini fuse 20a Electronic brake control module From abs maxi a fuse (diagram 1 of 3) Front auxiliary power outlets Front dome/ reading lamps Fuel pump relay Fusible link G901 (right "a" pillar) G999 (left "d" pillar) Generator Headlamp and panel dimmer Headlamp and panel dimmer switch Heater and a/c control module Horn mini fuse 20a Horn relay Htd mir/ rr defog mini fuse 40a I/p compt lamp I/p fuse block Illum fuse 14 10a Interior lamp control module Left courtesy lamp Left door courtesy lamp Left power door lock switch Left vanity lamp Liftgate lock/ unlock release switch Lighting maxi fuse 40a Outside rearview mirror switch Passenger seat adjuster switch Passenger van Passlock module Pk lps fuse 9 20a Pwr accy cb 30a Radio Radio batt fuse 19 10a Rear auxiliary power outlet Rear dome lamp Red Remote control door lock receiver Right courtesy lamp Right door courtesy lamp Right power door lock switch Right stepwell lamp Right vanity lamp Rr heat a/c maxi fuse 30a S207 S223 S227 S319 S322 (left "b" pillar) S500 S600 Security fuse 21 10a Starter solenoid Stop/haz fuse 1 20a Subwoofer amplifier Switch To lighting maxifuse (diagram 1 0f 3) To s219 (diagram 3 of 3) To upfit batt maxi fuse (diagram 2 of 3) Turn/ hazard switch Underhood fuse- relay center Underhood fuse-relay center Upfitter battery power stud Vehicle control module W/ console W/o rke Power Distribution Wiring Diagram (2 of 3) for Chevrolet Astro 1999 List of elements for Power Distribution Wiring Diagram (2 of 3) for Chevrolet Astro 1999: 96 (i/p harn, 17cm from headlamp switch breakout) (i/p harness, 2 cm from temperature control motor breakout) s303 (i/p harness, 7.5cm from connector at lower steering column) (left kick panel) s324 (left kick panel, 7 cm from park brake switch breakout) s305 (not used) A13 Acc Air bag fuse 10 10a Air temperature control motor Audio alarm module Automatic transmission B10 B17 Brake fuse 18 10a Brake pedal position switch C200 C206 C210 Center (diagram 1 of 3) Compass and temperature display module Convenience center Crank fuse 8 10a Cruise control module Cruise control switch Cruise fuse 6 10a Daytime running lamps control module Daytime running lamps relay E nca Electronic brake control module From underhood fuse-relay b From upfit-accy maxi fuse (diagram 2 of 3) Front windshield wiper/ washer switch Front wiper motor and module G201 (right side of dash) Gauges fuse 4 10a Headlamp and panel dimmer switch Htr-a/c fuse 12 20a Hvac control module I/p fuse block Ign-a maxi fuse 40a Ign-b maxi fuse 40a Ignition switch Inflatable restraint sensing diagnostic module Inside rear view mirror Instrument cluster Interior lamp control module Left "b" pillar) Left front power window master switch Lock Nca Off Overhead console Park/neutral position and backup lamp switch Passlock module Pnk Pnk (i/p harness, 4 cm from headlamp switch breakout) s213 Radio Radio fuse 17 10a Rear heat- a/c relay Rear radio control module Rear window wiper/washer switch Red Remote control door lock receiver Right front power window master switch Rr wiper fuse 23 20a Run S108 (engine harness, 22 cm from underhood fuse-relay center) S111 S114 S201 S203 (lower half of steering column) S205 S224 S240 (upfitter harn, 45cm red from convenience center) S242 (bottom of pnk S246 Start Starter enable relay To ign-e mini fuse (diagram 3 of 3) To trailer wiring harness To upfitter accy relay (diagram 2 of 3) Trans fuse 20 10a Turn-b/u fuse 16 20a Turn/ hazard switch Underhood fuse-relay center Underhood fuse/ relay center Upfit-accy maxi fuse 30a Upfit-batt maxi fuse 30a Upfitter accy relay Upfitter battery power stud Upfitter connector Upfitter ignition power stud Vehicle control module Windows cb 30a Wiper fuse 11 25a Power Distribution Wiring Diagram (3 of 3) for Chevrolet Astro 1999 List of elements for Power Distribution Wiring Diagram (3 of 3) for Chevrolet Astro 1999: 46 (engine harness, 18 cm from breakout to mass airflow sensor) (engine harness, 6 cm from fuel injector harness breakout) s123 (engine harness, 6cm from knock sensor breakout) s126 (engine harness, 9 cm from a/c low pressure cutoff switch breakout) s119 (i/p harn, 4cm from instrument cluster breakout) A/c enable relay Audio alarm module Bank 1 heated oxygen sensor 1 Bank 1 heated oxygen sensor 3 Bank 2 heated oxygen sensor 1 C207 C218 C219 Camshaft position sensor Compass and temperature display module Convenience center Crankshaft position sensor Ecm-1 mini fuse 20a Eng-1 mini fuse 20a Evaporative canister purge vent valve Evaporative emission canister purge solenoid valve From ignition d switch (diagram 2 of 3) From illum fuse (diagram 1 of 3) Fuel injector 1 Fuel injector 2 Fuel injector 3 Fuel injector 4 Fuel injector 5 Fuel injector 6 Heater and a/c control module Ign-e mini fuse 10a Ignition coil Ignition control module Instrument cluster Mass air flow sensor Nca Overhead console Pnk Radio Rear a/c switch Rear heater switch Rear window wiper/ washer switch S116 S219 Underhood fuse-relay center Vehicle control module
POWER DOOR LOCKS Power Door Lock Wiring Diagram, with Keyless Entry for Chevrolet Astro 1999 List of elements for Power Door Lock Wiring Diagram, with Keyless Entry for Chevrolet Astro 1999: 68 (i/p harness, 10cm from radio connectors toward right side of dash) (liftgate harn, 49.5 cm from breakout to liftgate lock/ unlock relay) (liftgate harn, 56 cm from breakout to liftgate lock/unlock (upper half of right "d" pillar) (w/ cargo doors only) Batt (b+) Batt or release Battery (b+) Cig ltr fuse 13 20a Convenience center (left of i/p fuse block, by left kick panel) Data link connector (under left side of dash) Dome lamps Dome lmp off Door lock control module (behind right kick panel) Door lock relay (behind right kick panel) Driver dr unlk G901 (right front "a" pillar, above right door jamb switch) G998 pnk Gauges fuse 4 10a Ground Hot at all times Hot in run or start I/p fuse block (behind left side of dash) Ignition Int lights Interior lights system Left door lock switch Left front door lock actuator Liftgate lock/ unlock relay (right rear quarter panel, near "d" pillar) Liftgate lock/unlock release switch Lock Lock out Lock sig Pass drs unlk Pnk Program sig Pwr accy circuit breaker 30a Rear door lock actuator Rear door lock motor (w/ liftgate) Rear liftgate release motor Release switch Remote control door lock receiver (behind right side of instrument cluster) Right door lock switch Right front door lock actuator Rr door unlk S213 S223 S227 S228 S229 S230 (i/p harness, 17cm from right dash harness retainer clip toward cluster) S231 (i/p harness, 11cm from right dash harness retainer clip, toward cluster) S232 (i/p harness, 4cm from right dash harness retainer clip) S316 (left side of vehicle, 37cm from sub-woofer amp breakout) S334 S335 S407 S500 (left door harness, 6cm from outside rear view mirror breakout) S600 (right door harness, 43 cm from power lock switch breakout) Side door contactor (right "b" pillar) Side door jamb switch Side door lock actuator Side door sw Tan Unlk Unlock Unlock in Unlock sig Power Door Lock Wiring Diagram, without Keyless Entry for Chevrolet Astro 1999 List of elements for Power Door Lock Wiring Diagram, without Keyless Entry for Chevrolet Astro 1999: 47 (i/p harness, 17cm from right dash harness retainer clip, toward cluster) s230 (liftgate harn, 49.5 cm from breakout to liftgate lock/unlock relay) s334 (w/ cargo doors only) Battery (b+) Cig ltr fuse 13 20a Convenience center (left of i/p fuse block, by left kick panel) Door lock control module (behind right kick panel) Door lock relay (right kick panel) G901 (right front "a" pillar above right door jamb switch) G998 (upper half of right "d" pillar) Ground Hot at all times I/p fuse block (behind left side of dash) Int lights Interior lights system Left door lock switch Left front door lock motor Liftgate lock/ unlock relay (right rear quarter panel near "d" pillar) Liftgate lock/unlock release switch Lock Lock sig Pwr accy circuit breaker 30a Rear door lock motor Rear door lock motor (w/ liftgate) Rear liftgate release motor Release switch Right door lock switch Right front door lock motor S223 S227 S228 (i/p harness, 10cm from radio connectors toward right side of dash) S229 S231 (i/p harness, 11cm from right dash harness retainer clip, toward cluster) S232 (i/p harness, 4cm from right dash harness retainer clip, toward cluster) S316 (body harness, left side of vehicle, 37cm from sub-woofer amp breakout) S335 (liftgate harn, 56 cm from breakout to liftgate lock/unlock relay) S407 S500 S600 Side door contactor (right "b" pillar) Side door jamb switch Side door lock motor Side door sw Tan Unlk Unlock Unlock sig
POWER MIRRORS Power Mirror Wiring Diagram for Chevrolet Astro 1999 List of elements for Power Mirror Wiring Diagram for Chevrolet Astro 1999: 20 (left door harness, 6.5 cm from outside rearview mirror breakout) s501 (right door harness, 6.5 cm from outside rearview mirror breakout) s604 Ctsy fuse 3 20a Down G116 (left side of firewall, above battery) Hot at all times I/p fuse block Illumination lamps Interior lights system Left Left outside power mirror Left/ right motor Nca Outside rearview mirror control switch Right Right outside power mirror S504 S505 Selector switch Up/down motor
POWER SEATS 6-Way Power Seat Wiring Diagram for Chevrolet Astro 1999 List of elements for 6-Way Power Seat Wiring Diagram for Chevrolet Astro 1999: 30 (left side of firewall, above battery) (near left Back C222 Center Convenience Convenience center (near left kick panel) Down Driver forward/ rearward seat motor Driver front tilt seat motor Driver rear tilt seat motor Driver seat adjuster switch Entire seat For- ward Front height G116 Hot at all times I/p fuse block Kick panel) Pass- enger rear tilt seat motor Passenger forward/ rearward seat motor Passenger front tilt seat motor Passenger seat adjuster switch Pwr accy circuit breaker 30a Rear height S206 S227 S323 S332 Tan
POWER WINDOWS Power Window Wiring Diagram for Chevrolet Astro 1999 List of elements for Power Window Wiring Diagram for Chevrolet Astro 1999: 18 Auto down module G116 (left side of firewall, above battery) G901 (right front "a" pillar, above door jamb switch) Hot in acc or run I/p fuse block (behind left side of dash) Interior lights system Left front switch Left front window motor Left power window master switch Right front switch Right front window motor Right power front window switch S305 S504 S601 Solid state Tan Windows circuit breaker 30a
RADIO Base Radio for Chevrolet Astro 1999 List of elements for Base Radio for Chevrolet Astro 1999: 47 (body harn, 17 cm from side door harn breakout, left side of "b" pillar) s312 (body harn, 23.5 cm from side door harn breakout, left side of "b" pillar) (left door harn, near power window switch) (right door harn, near power window switch) Antenna Coaxial cable Display dim sig G901 (right front "a" pillar above right door jamb switch) Grd Hot at all times Hot in acc or run I/p fuse block (behind left side of dash) Ignition voltage Interior lights system Left front door speaker Left front door tweeter Left rear door speaker Left rear speaker Lf (+) Lf (-) Lr (+) Lr (-) Nca Panel light Radio Radio batt fuse 19 10a Radio fuse 17 10a (1999) Rdo accy fuse 2 10a (2000) Rf (+) Rf (-) Right front door speaker Right front door tweeter Right rear door speaker Right rear speaker Rr (+) Rr (-) S229 (2000) S246 S260 (2000) S309 (left side of vehicle, 4 cm from side door harn breakout) S311 (body harn, 10.5 cm from side door harn breakout, left side of "b" pillar) S313 S502 S506 S602 S603 Tan Premium Sound Radio Wiring Diagram, with Rear Controls for Chevrolet Astro 1999 List of elements for Premium Sound Radio Wiring Diagram, with Rear Controls for Chevrolet Astro 1999: 91 (left side of vehicle, 11 cm from sub- woofer amplifier breakout) (left side of vehicle, 4 cm from rear radio control module breakout) (left side of vehicle, 4 cm from sub- woofer amplifier breakout) (right door harn, 4 cm from power door lock switch breakout) s603 6.5 cm from power door lock switch breakout) A10 A11 A12 Antenna Audio sig ret Aux pwr fuse 7 25a B10 B11 B12 Batt in Clr Coaxial cable Dimmer w Display dim sig E&c data Engine controls system Exterior lamps system G114 (left rear of engine block) G901 (right front "a" pillar, above right door jamb switch) G999 (upper half of left "d" pillar) Grd Ground Hot at all times Hot in acc or run I/p fuse block (behind left side of dash) Ign voltage Ignition voltage Interior lights system Left front door speaker Left front door tweeter speaker Left output Left rear speaker Left rear sub-woofer speaker Lf (+) Lf (-) Lr (+) Lr (-) Lr (+) Lr (-) Lr sw spkr (+) Lr sw spkr (-) Nca Panel light Pnk Power grd R14 in Radio Radio batt fuse 19 10a Radio fuse 17 10a (1999) Radio sig on Rdo accy fuse 2 10a (2000) Rear radio control module (left side of vehicle, behind "b" pillar) Rem rdo cntrl Remote cd player Rf (+) Rf (-) Right front door speaker Right front door tweeter speaker Right output Right rear speaker Right rear sub-woofer speaker Rr (+) Rr (-) Rr (+) Rr (-) Rr chnl in (+) Rr sw spkr (+) Rr sw spkr (-) S117 S229 (2000) S246 S260 (2000) S310 (body harn, 4 cm from from side door harn breakout) S314 S317 S318 S319 S322 S328 (2000) S502 (left door harn, 15 cm from power window motor breakout) S506 (left door harn, tan S602 (right door harn, 10.5 cm from power door lock switch breakout) Shield grd Sub-woofer amplifier (left center of vehicle, behind trim panel) Tan Vss output Premium Sound Radio Wiring Diagram, without Rear Controls for Chevrolet Astro 1999 List of elements for Premium Sound Radio Wiring Diagram, without Rear Controls for Chevrolet Astro 1999: 80 (body harn, 23.5 cm from side door harn breakout) (left side of vehicle, 4 cm from side door harn breakout) (right door harn, 4 cm from power door lock switch breakout) s603 6.5 cm from power door lock switch breakout) A10 A11 A12 Antenna Audio sig ret Aux pwr fuse 7 25a B10 B11 B12 Batt in Clr Coaxial cable Dimmer w Display dim sig E&c data Engine controls system G901 (right front "a" pillar, above right door jamb switch) G999 (upper half of left "d" pillar) Grd Ground Hot at all times Hot in acc or run I/p fuse block (behind left side of dash) Ignition voltage Interior lights system Left front door speaker Left front door tweeter speaker Left output Left rear speaker Left rear sub-woofer speaker Lf (+) Lf (-) Lr (+) Lr (-) Lr (+) Lr (-) Lr sw spkr (+) Lr sw spkr (-) Nca Panel light Power grd R14 in Radio Radio batt fuse 19 10a Radio fuse 17 10a (1999) Rdo accy fuse 2 10a (2000) Remote cd player Rf (+) Rf (-) Right front door speaker Right front door tweeter speaker Right output Right rear speaker Right rear sub-woofer speaker Rr (+) Rr (-) Rr (+) Rr (-) Rr sw spkr (+) Rr sw spkr (-) S229 (2000) S246 S260 (2000) S309 S311 (body harn, 10.5 cm from side door harn breakout) S312 (body harn, 17 cm from side door harn breakout) S313 S319 S322 S502 (left door harn, 15 cm from power window motor breakout) S506 (left door harn, tan S602 (right door harn, 10.5 cm from power door lock switch breakout) Shield grd Sub-woofer amplifier (left center of vehicle, behind trim panel) Tan Vss output
SHIFT INTERLOCKS Shift Interlock Wiring Diagram for Chevrolet Astro 1999 List of elements for Shift Interlock Wiring Diagram for Chevrolet Astro 1999: 12 Automatic transmission shift control solenoid (inside steering column) C201 G116 (left side of firewall above battery) Hot in run & start I/p fuse block Nca Park/neutral position (pnp) switch (left center of transmission) c2 Pnk S206 Stop lamp switch (on brake pedal bracket) (closed w/ brake off) Turn b/u fuse 16 20a Turn signal/ multi function switch (top of steering column)
STARTING/CHARGING Charging Wiring Diagram for Chevrolet Astro 1999 List of elements for Charging Wiring Diagram for Chevrolet Astro 1999: 22 (left radiator support) (lower right side of engine block) (not used) B16 B17 Bat Battery Charge warning indicator G108 G120 Gauges fuse 4 10a Generator Hot in run or start I/p fuse block Instrument cluster Ohms Pnk Power distribution system Red S f S213 Starter solenoid Starting Wiring Diagram for Chevrolet Astro 1999 List of elements for Starting Wiring Diagram for Chevrolet Astro 1999: 30 (left center of trans.) park/neutral position and backup lamp switch (left radiator support) (lower right side of engine block) (right side of dash) Accy Battery Bulb test Charging circuit Crank fuse 8 10a G108 G120 G201 Hold- in coil I/p fuse block Ign a fuse 40a Ignition switch Lock Nca Off Pull- in coil Red Remote battery stud Run S108 S111 Start Starter enable relay (in underhood fuse/relay center) Starter motor Starter solenoid Underhood fuse/relay center
SUPPLEMENTAL RESTRAINTS Supplemental Restraint Wiring Diagram for Chevrolet Astro 1999 List of elements for Supplemental Restraint Wiring Diagram for Chevrolet Astro 1999: 35 Air bag fuse 10 10a Air bag indicator Audio alarm module B nca B17 pnk Bar Convenience center Data line Data link connector (dlc) (under left side of dash) Driver high Driver low G900 (left front "a" pillar) G999 (upper left "d" pillar) Gauges fuse 4 10a Hot in run or start I/p fuse block (behind left side of dash) Ignition Indicator Instrument cluster Lf seat belt input Nca Pass high Pass low Pnk S213 (i/p harn, 4 cm from headlamp switch breakout) S304 (left kick pnl, near breakout to parking brake switch) S309 (left kick panel, 38 cm from parking brake switch breakout) S319 (left rear "d" pillar, near g999) Seat belt sig Seat belt switch (on buckle side of left seat belt assembly) Sensor feed Shorting Shorting bar Sir ground Tan
TRANSMISSION
4.3L 4.3L VIN W, A/T Wiring Diagram for Chevrolet Astro 1999 List of elements for 4.3L VIN W, A/T Wiring Diagram for Chevrolet Astro 1999: 85 (behind left side of dash) (engine harn, 10 cm from uh fuse/relay center breakout) s113 (engine harn, 12 cm from generator breakout) (engine harn, 6 cm from generator breakout) s120 (engine harn, approx 10 cm from breakout of 36-pin inline conn at left side of dash) (engine harn, approx 4 cm from uh fuse/relay center breakout) s114 (on throttle body) 1-2 shift sol 1-2 shift sol ctrl 2-3 shift sol 2-3 shift sol ctrl 3-2 shift sol 3-2 sol ctrl 5v reference All times Anti-lock brakes system Automatic transmission (4l60-e) Automatic transmission fluid pressure manual valve position switch B17 Battery feed Brake Brake pedal position switch (on brake pedal bracket) Brake signal Center (eng compt near battery) Convenience center Cruise control Datalink connector (below left side of dash) Ecm 1 fuse 20a Ecm b Ect signal Electronic brake control module Engine controls Engine coolant temperature sensor (top of engine) Fuel injectors & ignition Fuel pump relay Fuse 18 10a Fuse 20 10a Fuse 20a G114 (left rear of engine) Gauges fuse 4 10a Hot at Hot in run Hot in run, bulb I/p fuse block Ignition feed Instrument cluster Malfunction indicator lamp Mil ctrl Or start Overhead console, audio alarm module, drl relay & module, interior lamp control module, dimmer switch, door lock receiver Pnk Press ctrl sol "hi" Press ctrl sol "lo" Pressure control solenoid Range signal "a" Range signal "b" Range signal "c" Red Run feed S109 S112 S116 S117 S122 S213 Sensor ground Serial data System gnd Tan Tcc pwm sol Tcc pwm sol ctrl Tcc sol Tcc sol ctrl Tcc/abs/ cruise switch Test or start Tft signal Throttle position sensor Tp signal Trans Transmission fluid temperature sensor Underhood fuse/relay Vehicle control module (left side of engine compt) Vehicle speed sensor (rear of transmission) Vss hi Vss lo 4.3L VIN W, Transfer Case Wiring Diagram for Chevrolet Astro 1999 List of elements for 4.3L VIN W, Transfer Case Wiring Diagram for Chevrolet Astro 1999: 48 (under left side of dash) data link connector A14 Atc fuse 20a Automatic transfer case shift control module (behind left kick panel) B17 Battery Brake fuse 18 10a C224 Convenience center (at left kick panel) E10 E11 E12 E13 E14 E15 E16 Encoder motor (inside transfer case) F10 F11 F12 F13 F14 F15 F16 Front propshaft speed sensor (near center of transfer case) G111 (near battery) Gauges fuse 4 10a Ground Hot at all times Hot in run Hot in run & start I/p fuse block Ignition Ind lamp ctrl Instrument cluster Pnk Rear propshaft speed sensor (near center of transfer case) Red Rr vss S206 S213 S233 (behind left kick panel) S240 Serial data Service awd ind Transfer case mtr Underhood fuse/relay center Vss
TRUNK, TAILGATE, FUEL DOOR Rear Glass Release Wiring Diagram for Chevrolet Astro 1999 List of elements for Rear Glass Release Wiring Diagram for Chevrolet Astro 1999: 26 (i/p harn, 10cm from radio con- nectors breakout) (i/p harn, 17cm from right dash harn retainer clip) Cig ltr fuse 13 20a Door lock relay (right kick panel) Door locks system G901 (right front "a" pillar, above right door jamb switch) G998 (upper half of left "d" pillar) Hot at all times I/p fuse block (left side of dash) Liftgate lock/ unlock relay (right rear quarter panel) Liftgate lock/unlock release switch Lock Pwr accy circuit breaker 30a Rear door lock motor Rear liftgate release motor Release switch S223 S227 S228 S229 S230 S334 (liftgate harn, 49.5 cm from breakout to liftgate lock/ unlock relay) S335 (liftgate harn, 56 cm from breakout to liftgate lock/ unlock relay) S407 Tan Unlock
WARNING SYSTEMS Warning System Wiring Diagrams for Chevrolet Astro 1999 List of elements for Warning System Wiring Diagrams for Chevrolet Astro 1999: 36 A12 Audio alarm module (on convenience center, left kick panel) Battery input Fasten belts out G114 (left rear of engine block) G116 (left side of firewall, above battery) G125 (front of eng, near thermostat housing) G999 (upper half of left "d" pillar) Gauges fuse 4 10a Ground Hot at all times Hot in park or head Hot in run, bulb test or start I/p fuse block Ign on input Illum fuse 14 10a Instrument cluster Key-in warning Key-in warning buzzer switch (inside steering column, by lock cylinder) Left door jamb switch Lights on input Nca Pnk S117 S204 S206 S213 S219 S221 S304 (left kick panel, 1 cm from park brake switch breakout) S319 Safety belt input Seat belt buckle switch (on buckle side of left seat belt assembly) Seat belt indicator Stop/haz fuse 1 20a Tan
WIPER/WASHER Front Washer/Wiper Wiring Diagram for Chevrolet Astro 1999 List of elements for Front Washer/Wiper Wiring Diagram for Chevrolet Astro 1999: 25 (1998-99) s324 (left side of firewall, above battery) g116 (1998-99) g104 (1996-97) (left side front of dash, above battery) Front windshield washer pump (in washer reservoir) Front wiper/ washer switch G109 (right front radiator support) Hot in acc or run I/p fuse block (behind left side of dash) Inst wipe Inst wipe k Low Mist Mist off Nca Off Pnk Pulse S118 s134 (1997) (1996) S123 (1996) s100 (1997-99) S209 (1996) s206 (1997-99) Solid state Wash Washer switch Wiper fuse 11 25a Wiper motor and module (center front of dash) Wiper switch Rear Wiper/Washer Wiring Diagram for Chevrolet Astro 1999 List of elements for Rear Wiper/Washer Wiring Diagram for Chevrolet Astro 1999: 20 (1997-99) s407 1996-97 1998-99 99) Dly G109 (right front radiator support) G998 (upper right "d" pillar) Hot in acc or run I/p fuse block (behind left side of dash) Interior lights system Off Park switch Rear window washer pump (in washer reservoir) Rear window wiper motor (in center of liftgate) Rear window wiper/ washer switch Rear window wiper/washer module (left side of liftgate) Rr wiper fuse 23 20a S241 (1998-99) (i/p harn, near breakout to temp ctrl mtr) S404 (1996) Wash
