Diagram sections — 26 (41 total)
AIR CONDITIONING ANTI-LOCK BRAKES COMPUTER DATA LINES CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING 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 A/C Wiring Diagram for Chevrolet Astro 1997 List of elements for A/C Wiring Diagram for Chevrolet Astro 1997: 61 (eng harn, 5cm from underhood fuse-relay center breakout) (right side of dash) A/c clutch diode (in underhood fuse/relay center) A/c comp mini fuse k11 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 G109 (right radiator support) G201 G201 (right side of dash) G402 (below rear a/c blower) G409 (above rear heater) G901 (right front "a" pillar) 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 h7 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 m2 30a S111 S111 (eng harn, 5cm from underhood fuse-relay center breakout) S124 (engine harn, 13cm from oil pressure switch breakout) S224 (i/p harness, 14.5cm from heater-a/c control breakout) S229 (i/p harn, 6.5cm from dlc breakout) Tan Temperature control motor (lower right side of dash) Underhood fuse-relay center Underhood fuse/relay center Vehicle control module (left side of engine compt) Vent Heater Wiring Diagram for Chevrolet Astro 1997 List of elements for Heater Wiring Diagram for Chevrolet Astro 1997: 39 (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 G109 (right radiator support) G201 G201 (right side of dash) G409 (above rear heater) G901 (right front "a" pillar) Heat Heater and a/c control valve solenoid (behind receiver/ dryer) Heater control module 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 m2 30a S111 (engine harn, 5cm from underhood fuse-relay center breakout) S224 (i/p harn. 14.5cm from heater-a/c control breakout) S229 (i/p harness, 6.5cm from dlc breakout) Tan Temperature control motor (lower right side of dash) Underhood fuse-relay center Vent
ANTI-LOCK BRAKES Anti-lock Brake Wiring Diagrams for Chevrolet Astro 1997 List of elements for Anti-lock Brake Wiring Diagrams for Chevrolet Astro 1997: 53 (engine harn, left side of dash) (engine harn, near ebcm) s129 (left side of i/p) data link connector (rear of left cyl head) A13 Abs ind Abs lamp control Abs maxi fuse 4 60a B17 Brake diode d100 (underhood fuse-relay center) Brake fuse 18 10a Brake ind Brake lamp control Brake pressure modulator valve (left front side of frame) Brake pressure warning switch Brake sw output Brake sw output-tcc Cruise control system Daytime running lamps control module (left side of i/p) Diagnostic signal Ebcm ground G114 Gauges fuse 4 10a Hot at all times Hot in run or start I/p fuse block Ign Instrument cluster Left front wheel speed sensor Lft frt sensor (+) Lft frt sensor (-) Nca Pnk Pump motor ground Pump motor power Red Right front wheel speed sensor Rt frt sensor (+) Rt frt sensor (-) S113 S114 S127 S213 Serial data signal Tan Tcc/ stoplamp switch (above brake pedal) Underhood fuse-relay center Vehicle control module (left side of engine compt) Vehicle speed sensor (rear of transmission) Vehicle speed sig Vss (+) Vss (-) Vss sig
COMPUTER DATA LINES Computer Data Lines for Chevrolet Astro 1997 List of elements for Computer Data Lines for Chevrolet Astro 1997: 24 (left side of safety wall, above battery) (thermostat housing) 9600 uart Aux pwr fuse 7 25a Data clss 2 Data clss b Data link connector (below left side of i/p) Electronic brake control module (left front side of frame, left of transmission) Electronic variable orifice module (right side of i/p) G116 G125 Hot at all times I/p fuse block Inflatable restraint sensing diagnostic module (under driver's seat) Prog enable Remote control door lock receiver (behind right side of i/p) S113 (engine harness, 10 cm from underhood fuse-relay center breakout) S204 S206 S210 S233 (i/p harness, 6 cm from dlc breakout) Serial data Tan Vehicle control module (left side of engine compt, near battery)
CRUISE CONTROL Cruise Control Wiring Diagram for Chevrolet Astro 1997 List of elements for Cruise Control Wiring Diagram for Chevrolet Astro 1997: 37 (front of dash, 32 cm from fwd lamp harness breakout) (in bulkhead connector) (rear of transmission) 4000 pulses/mile A12 A13 A14 A15 Brake fuse 18 10a Cruise control module (center of dash) Cruise control switch Cruise fuse 6 10a Cruise on input Cruise status Disengage input G125 (on thermostat housing) Ground Hot at all times Hot in run I/p fuse block Ignition Nca Off R/a Resume/accel input S/c S130 S204 S221 Set/coast input Stop/haz fuse 1 20a Tcc/stoplamp brake switch (top of brake pedal) Vehicle control module (vcm) (left side of engine compt) Vehicle speed input Vehicle speed sensor (vss) Vss return Vss signal
DEFOGGERS Defogger Wiring Diagram for Chevrolet Astro 1997 List of elements for Defogger Wiring Diagram for Chevrolet Astro 1997: 17 (right front "a" pillar, above right door jamb switch) g901 (upper half of right "d" pillar) g998 C1 c Defogger on ind. Hot at all times Hot in run 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 Rr-defog mini fuse 30a S229 S407 Timer Underhood fuse-relay center
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Chevrolet Astro 1997 List of elements for Electronic Power Steering Wiring Diagram for Chevrolet Astro 1997: 32 (lower left side of dash) data link connector (dlc) 1995 vftc c 5 volt ref Battery feed Computer data lines system Electronic variable orifice (evo) module (right side of instrument cluster) Electronic variable orifice (evo) solenoid (on steering pump) Evo sol feed Evo sol output G114 (left rear of engine block) Gauges fuse 4 10a Ground Hot at all times Hot in run or start I/p fuse block Ignition Pnk Pos sig out Position signal S125 S213 S218 (i/p harn, approx 4 cm from cluster breakout) S233 (i/p harn, approx 6.5 cm from data link connector breakout) Sen rtn Sensor return Srl data class b Steering fuse 21 10a Steering wheel position sensor (on steering column) Vehicle control module (vcm) (left side of engine compt) Volt ref Vss out Vss signal input
ENGINE PERFORMANCE
4.3L 4.3L (VIN W), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Astro 1997 List of elements for 4.3L (VIN W), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Astro 1997: 69 (eng harn, 6cm from trans breakout toward front of eng) (thermostat housing) (top of engine, left rear of throttle body) idle air control valve motor (top of engine, next to map sensor) evaporative emissions canister purge solenoid valve 1-2 shift sol. ctrl 2-3 shift sol. ctrl 3-2 ctrl sol. ctrl A/c comp rly ctrl Air conditioning system Cam posit sens rtn Cam posit sens sig Camshaft position sensor (side of distributor) Crank posit sens sig Crankshaft position sensor (behind right side of engine crankshaft pulley) Ect sens input Egr posit input Evap can vent valve Evap sol purge ctrl G114 (left rear of engine block, next to knock sensor) G134 G201 (right side of dash, above blower motor) Ground Hall effect sensor Heated oxygen sensor no.1 (right front exhaust y-pipe closest to exhaust manifold) Heated oxygen sensor no.2 (left front exhaust y-pipe) Heated oxygen sensor no.3 (right front exhaust y-pipe closest to catalytic converter) Iat temp sens sig Idle air ctrl (iac) a hi Idle air ctrl (iac) b lo Inj no.1 ctrl Inj no.2 ctrl Inj no.3 ctrl Inj no.4 ctrl Inj no.5 ctrl Inj no.6 ctrl 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 Pnk pnk pnk Post-catalyst sens hi Post-catalyst sens lo Power Pre-catalyst sens hi Pre-catalyst sens lo Right sens hi Right sens lo S117 S124 S126 S127 Sensor ground Tan Tcc on/off sol. ctrl Tcc pwm sol ctrl Throttle posit sens Trans temp sens sig Twisted wire pair Vcm ground Vehicle control module (vcm) (left side of engine compartment, lower side of battery) 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 1997 List of elements for 4.3L (VIN W), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Astro 1997: 35 1-2 shift sol. 2-3 shift sol. 3-2 control sol. Automatic transmission Automatic transmission fluid pressure manual valve position switch D2 sw D3 sw D4 sw Ecm-1 mini fuse f7 20a Eng-1 mini fuse f7 20a Evaporative emission canister vent valve (under- carriage, left of canister) Fuel inj. no.1 Fuel inj. no.2 Fuel inj. no.3 Fuel inj. no.4 Fuel inj. no.5 Fuel inj. no.6 Heated oxygen sensor no.4 (exhaust pipe, between catalytic converter & muffler) Hot in run or start Linear egr valve solenoid (top of engine, left of generator) Lo sw Nca Pnk Pnk pnk pnk tan Pressure control solenoid valve Red Rev sw S116 S119 S123 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 1997 List of elements for 4.3L (VIN W), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Astro 1997: 47 (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 a pump prime connector Fuel pump & sender (inside fuel tank) Fuel pump relay 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 fuel gauge 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) Mini fuse f11 20a Nca Oil pressure switch & sender (rear of engine, behind left side of distributor) Pnk Red S109 S111 S115 (eng harn, 4cm from underhood fuse/relay center breakout) 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 1997 List of elements for 4.3L (VIN W), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Astro 1997: 73 (eng harn, 10cm from bulkhead conn left side of i/p) (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 in b 5v ref. voltage 5v return A/c request (hi) A/c request (lo) Air conditioning system Brake sw input Brake switch input C210 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) Distributor ignition control module (top of engine, front of coil) Dlc ctrl Electronic brake control module (left front side of frame, left of transmission) Est output sig Fuel level d Fuel level mod out Fuel level rtn Fuel pump rly ctrl Fuel sender gauge module (left side of dash) Fused ign (run) Fused ign (run/start) G114 (left rear of eng block next to knock sensor) Gauge ctrl l 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 feed M4 brake fuse 18 10a n3 Mod out m Nca Overhead console Pnk Pnk a Power a Power b(+) Press ctrl sol lo Press ctrl sol. hi Radio Red S110 S112 S113 (eng harn, 10cm from underhood fuse/relay center breakout) S117 S218 Sensor in c Serial data sig Service circuit-power Spark plugs Tach. sig. Tachometer test lead 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 1997 List of elements for Back-up Lamps Wiring Diagram for Chevrolet Astro 1997: 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 backup lamp Park/neutral position & backup lamp switch (left side of trans.) Pnk Right backup lamp S319 S321 S403 Turn b/u fuse 16 20a Exterior Lamps Wiring Diagram for Chevrolet Astro 1997 List of elements for Exterior Lamps Wiring Diagram for Chevrolet Astro 1997: 74 (body harn, right "d" pillar, 11 cm from right rear door breakout) s401 (body harness, inside bulkhead connector) s200 (dash harn, 1cm from a6 (dash harn, 2cm from a7 (dash harness, 3cm from cluster harness breakout) s217 (dash harness, 6cm from dlc breakout) s208 A10 All wire leads are taped and are to be spliced to trailer wiring harness or connector. Backup lamps circuit C214 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 Headlamp switch breakout) s211 Headlamp switch breakout) s212 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, 4cm from right park/ turn lamp breakout) S102 (forward lamp harness, 4cm from left park/ turn lamp breakout) S103 (forward lamp harn, 4cm from right park/turn lamp breakout) S104 S204 S206 S221 S303 S319 S320 (body harness, left "d" pillar, 46cm from body ground breakout) S400 (body harness, rear top of vehicle, 13cm from chmsl breakout) S402 (body harness, right "d" pillar, 4cm from right rear door harn breakout) S403 Sound systems Stop/ haz fuse 1 20a Tan Tcc/stop lamp switch (on brake pedal bracket) 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 1997 List of elements for Ground Distribution Wiring Diagram (1 of 2) for Chevrolet Astro 1997: 63 (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 air temperature sensor Audio alarm module B13 Bank 1 heated oxygen sensor 1 Bank 1 heated oxygen sensor 2 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 Distributor ignition control module Driver seat adjuster switch Electronic variable orifice module Front wiper motor and module Fuel pump relay G114 (left rear of engine block) G116 (left side of safety wall, 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 switch Instrument cluster Left front power window master switch 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 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) S125 (engine harness, 6 cm from camshaft position sensor 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 1997 List of elements for Ground Distribution Wiring Diagram (2 of 2) for Chevrolet Astro 1997: 94 (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 Endgate lock switch Engine cover ground Front auxiliary power outlet 1 Front auxiliary power outlet 2 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 Inflatable restraint front end discriminating sensor Inflatable restraint sensing diagnostic module Interior lamp control module Left backup lamp Left front park/turn 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/ latch module Liftgate release switch Nca Radio Rear a/c blower motor Rear auxiliary power outlet Rear door jamb switch Rear heater blower motor Rear liftgate release motor Rear window defogger grid Rear window washer pump Rear window wiper/ washer switch Remote control door lock receiver Right backup lamp Right front park/ turn lamp Right front power window switch Right hi/lo beam headlamp Right high beam headlamp Right horn Right liftgate strut switch Right low beam headlamp Right power door lock switch Right rear side marker lamp Right tail/stop turn lamp Right window wiper/ washer module 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) 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) Safety belt retractor switch Sub- woofer amplifier Temperature control motor Vehicle speed sensor shield W/ cargo doors W/ composite lamps W/ dutch doors W/ sealed beam lamps
HEADLIGHTS Headlight Wiring Diagram, with Composite Headlamps for Chevrolet Astro 1997 List of elements for Headlight Wiring Diagram, with Composite Headlamps for Chevrolet Astro 1997: 58 (forward lamp harn, 10cm from left headlamp breakout) s105 A17 Acc B17 Brake ind ctrl Brake warning Bulb test C211 Daytime running lamps module (left side of dash, taped to main harness) Daytime running lamps relay (left of i/p fuse block, right side of convenience center) Drl diode (d300) (lower left side of b-pillar) Drl fuse 15 10a Drl indicator Drl relay ctrl G108 left front radiator support) G109 (right front radiator support) G116 (left side of safety wall, above battery) Gauges fuse 4 10a Ground Head Headlamp & panel dimmer switch Headlamp dimmer switch Hi beam indicator Hot at all times Hot in run, bulb test or start I/p fuse block (lower left side of dash) Ign sw in Ignition Ignition switch Instrument cluster Instrument cluster system Lamp feed Left high beam headlamp Left low beam headlamp Lighting maxi-fuse 8 40a Lock Nca Off Park Park brake in Park brake warning switch (left front kick panel) Pnk Red Right high beam headlamp Right low beam headlamp Run S100 S104 S106 (forward lamp harn, 4cm 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) S216 (i/p harn, 9cm from cluster breakout toward left side of dash) Start Tan Underhood fuse-relay center (left side of safety wall, near battery) Headlight Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Astro 1997 List of elements for Headlight Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Astro 1997: 58 (forward lamp harn, 10cm from left headlamp breakout) s105 (hi) (lo) A17 Acc B17 Brake ind ctrl Brake warning Bulb test C211 Daytime running lamps module (left side of dash, taped to main harness) Daytime running lamps relay (left of i/p fuse block, right side of convenience center) Drl diode (d300) (lower left side of b-pillar) Drl fuse 15 10a Drl indicator Drl relay ctrl G108 left front radiator support) G109 (right front radiator support) G116 (left side of safety wall, above battery) Gauges fuse 4 10a Ground Head Headlamp & panel dimmer switch Headlamp dimmer switch Hi beam indicator Hot at all times Hot in run, bulb test or start I/p fuse block (lower left side of dash) Ign sw in Ignition Ignition switch Instrument cluster Instrument cluster system Lamp feed Left hi/lo beam headlamp Lighting maxi-fuse 8 40a Lock Nca Off Park Park brake in Park brake warning switch (left front kick panel) Pnk Red Right hi/lo beam headlamp Run S100 S104 S106 (forward lamp harn, 4cm 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) S216 (i/p harn, 9cm from cluster breakout toward left side of dash) Start Tan Underhood fuse-relay center (left side of safety wall, near battery)
HORN Horn Wiring Diagram for Chevrolet Astro 1997 List of elements for Horn Wiring Diagram for Chevrolet Astro 1997: 16 (forward lamp harness, 60 cm from left headlamp breakout) s130 Convenience center (left of i/p fuse block, by left kick panel) G108 (left radiator support) 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) S127 S238 Slip ring Turn signal cancel cam Turn/hazard switch Underhood fuse-relay center
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram for Chevrolet Astro 1997 List of elements for Instrument Cluster Wiring Diagram for Chevrolet Astro 1997: 86 (6 bulbs) (engine harn, 32 cm from ebcm) (left side of safety wall) g116 10k A10 A11 A12 A13 A14 A15 A16 A17 Abs warning indicator Accy Air bag indicator Anti-lock brakes system B10 B11 B12 B13 B14 B15 B16 B17 Brake ind in Brake pressure modulator valve (to left of transmission) Brake pressure warning switch (on rear of brake pressure modulator valve assy.) Brake warning indicator Charge indicator Check gages indicator Check gages lamp driver Daytime running lamp module (left side of dash) Diode d100 Drl/park brake indicator (w/ drl) Engine coolant temperature gage sender (left side of engine block) Exterior lights system Fuel gage Fuel level sender (in fuel tank) Fuel/sender gauge module (lower left side of dash) G100 (right side of left frame rail) G114 (left rear of engine block) G125 (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 i/p) 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 (left rear of distributor) Park brake warning switch (left side of i/p) Park/neutral position & backup lamp switch (left center of transmission) Pnk Prnd321 & odometer circuitry Right turn indicator Run S125 S127 S129 S204 S206 S213 Seat belt indicator Service engine soon indicator Speedo Speedometer Start Starting/charging system Temperature gage Trans fuse 20 10a Twisted pair Underhood fuse-relay center (left rear of engine compt) Vehicle control module (left side of engine compt.) Vehicle speed sensor (rear of transmission) Voltmeter Vss Warning system
INTERIOR LIGHTS Interior Light Wiring Diagram (1 of 2) for Chevrolet Astro 1997 List of elements for Interior Light Wiring Diagram (1 of 2) for Chevrolet Astro 1997: 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 cm from left vanity mirror breakout) s237 (vanity mirror harn, 7.5 cm fr4om left vanity mirror breakout) s236 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 (above battery) G901 (above right front door jamb switch) Hi/low switch Hot at all times I/p compartment lamp I/p fuse block Left courtesy lamp Left door courtesy lamp Left vanity lamp Map lights Nca Outside rearview mirror control switch 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 S307 (roof of vehicle, 10.5 cm from mid dome lamp breakout) S308 S319 S504 W/ console W/ door courtesy lamps only W/ power mirror W/o power mirror W/o rke Interior Light Wiring Diagram (2 of 2) for Chevrolet Astro 1997 List of elements for Interior Light Wiring Diagram (2 of 2) for Chevrolet Astro 1997: 54 (i/p harn, 2.5 cm from cluster breakout) s217 (left door harn, 2.5 cm from power window motor breakout) s503 (left kick panel, 13.5 cm from park brake switch breakout) s306 (right door harn, 14.5 cm from power door lock switch breakout) s605 Ash tray lamp C300 C401 Dome lamp switch Domelamp defeat switch Door lock control module (right kick panel) Exterior lights system G114 (left rear of engine block) G116 (above battery) G901 (above right front 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) (mounted to dlc connector 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 (behind left "b" pillar) Remote control door lock receiver (right side of i/p, behind air duct) Right door jamb switch Right front power window switch Right power door lock switch S206 S213 S229 S315 S319 S401 (right rear "d" pillar, 10.5 cm from right rear door breakout) S504 S601 right door harn, 14.5 cm from power door lock switch breakout) 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
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 3) for Chevrolet Astro 1997 List of elements for Power Distribution Wiring Diagram (1 of 3) for Chevrolet Astro 1997: 106 (engine harness, 24 cm from underhood fuse-relay center) s109 (front of dash, 18 cm from fwd lamp harness breakout) (i/p harness, 17 cm from cluster breakout) (i/p harness, 2 cm from headlamp switch breakout) s211 red (i/p harness, 21 cm from heater a/c control breakout) (i/p harness, 4 cm from headlamp switch breakout) (i/p harness, 9 cm from cluster breakout) s220 (left door harness, 4 cm from power door lock switch connector breakout) (left door harness, 6 cm from outside rearview mirror breakout) (power seat harness, 7 cm from left power seat breakout) (right door harness, 4 cm from power door lock switch breakout) (vanity mirror harness, 7 cm from left vanity mirror breakout) s237 A/c comp mini fuse k11 10a A/c enable relay A/c maxi fuse m3 30a A12 Abs maxi fuse m4 60a Audio alarm module Aux pwr fuse 7 25a Batt maxi fuse 7 50a Battery Blower motor resistor and relay pack C207 C222 Center dome lamp 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 10a Ecm-b mini fuse f11 20a Electronic brake control module Electronic variable orifice module From underhood a fuse-relay center above 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 Horn mini fuse h11 20a Horn relay Hvac control module I/p compartment lamp I/p fuse block Illum fuse 14 10a Interior lamp control module Interior lights Interior lights system Left courtesy lamp Left door courtesy lamp Left power door lock switch Left vanity lamp Liftgate lock/latch module Lighting maxi fuse 8 40a Locks/ seats cb 30a Oil pressure switch and sender Outside rearview mirror switch Passenger seat adjuster switch Pk lps fuse 9 20a Radio Radio batt fuse 19 10a Rear auxiliary power outlet Rear defog mini fuse f9 30a Rear dome lamp Rear heat- a/c relay Red Relay center 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 m2 30a S132 S213 S223 S227 S319 S322 (left side of vehicle, 4 cm from side door harness breakout) S500 S600 Starter solenoid Steering fuse 21 10a Stop/haz fuse 1 20a Subwoofer amplifier Switch System Tcc/stoplamp switch To underhood fuse-relay center (diagram 2 of 3) To underhood fuse-relay center below Turn/ hazard switch Underhood fuse- Underhood fuse-relay center Upfitter battery power stud Vehicle control module Power Distribution Wiring Diagram (2 of 3) for Chevrolet Astro 1997 List of elements for Power Distribution Wiring Diagram (2 of 3) for Chevrolet Astro 1997: 87 (front of dash, 4 cm from bulkhead grommet, toward windshield washer motor) s134 (i/p harness, 14 cm from heater a/c control breakout) (i/p harness, 2 cm from temperature control motor breakout) s303 (i/p harness, 6 cm from connector at lower steering column) (left kick panel, 7 cm from park brake switch breakout) s305 (not used) Acc Air bag fuse 10 10a Audio alarm module B10 B17 Brake fuse 18 10a C200 C214 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 module Daytime running lamps relay E nca Electronic brake control module Electronic variable orifice module From underhood fuse-relay b From underhood fuse-relay center above Front pulse wiper/ washer switch Front wiper motor and module Fuel/ sender gauge 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 6 40a Ign-b maxi fuse 5 40a Ignition switch Inflatable restraint sensing diagnostic module Instrument cluster Interior lamp control module Left front power window master switch Lock Nca Off Park/neutral position and backup lamp switch Pnk Pnk (i/p harness, 4 cm from headlamp switch breakout) s213 Pnk c207 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, 17 cm from underhood fuse-relay center) S111 S114 S203 (left kick panel, 4 cm from bulkhead connector) S205 S224 Start Starter enable relay Tcc/stoplamp switch Temperature control motor To trailer wiring harness To underhood fuse-relay center (diagram 3 of 3) To upfitter ignition relay below Trans fuse 20 10a Transmission Turn-b/u fuse 4 10a Turn/ hazard switch Underhood fuse-relay center Upfit-batt maxi fuse p8 30a Upfit-ign maxi fuse p7 30a Upfitter battery power stud Upfitter ignition power stud Upfitter ignition relay Vehicle control module Windows cb 30a Wiper fuse 11 25a Power Distribution Wiring Diagram (3 of 3) for Chevrolet Astro 1997 List of elements for Power Distribution Wiring Diagram (3 of 3) for Chevrolet Astro 1997: 31 (engine harness, 18 cm from breakout to mass airflow sensor) (engine harness, 6 cm from fuel injector harness breakout) s123 (engine harness, 6 cm from transmission breakout) s126 (engine harness, 9 cm from a/c low pressure cutoff switch breakout) s119 A/c enable relay Bank 1 heated oxygen sensor 1 Bank 1 heated oxygen sensor 2 Bank 1 heated oxygen sensor 3 Bank 2 heated oxygen sensor 1 Camshaft position sensor Crankshaft position sensor Distributor ignition control module Ecm-1 mini fuse k7 20a Eng-1 mini fuse f7 20a Evaporative canister purge vent valve Evaporative emission canister purge solenoid valve From ignition d switch (diagram 2 of 3) Fuel injector 1 Fuel injector 2 Fuel injector 3 Fuel injector 4 Fuel injector 5 Fuel injector 6 Ign-e mini fuse m7 10a Ignition coil Linear egr valve solenoid Mass air flow sensor Pnk S116 Underhood fuse-relay center Vehicle control module
POWER DOOR LOCKS Door Lock Wiring Diagram for Chevrolet Astro 1997 List of elements for Door Lock Wiring Diagram for Chevrolet Astro 1997: 37 (i/p harness, 17cm from right dash harness retainer clip) s230 (w/ cargo doors only) Battery (b+) Cig ltr fuse 13 20a Convenience center (behind left side of dash) Door lock control module (right kick panel) Door lock relay (right kick panel) G203 (right kick panel) Ground Hot at all times I/p fuse block (left side of dash) Int lights Interior lights system Left door lock switch Left front door lock actuator Lock Lock sig Locks seats c.b. 25a Rear door lock actuator Right door lock switch Right front door lock actuator S223 S227 S228 (i/p harness, 10cm from temperature control motor breakout) S229 S231 (i/p harness, 11cm from right dash harness retainer clip, toward cluster) S231 (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) S500 (left door harness, 6cm from rear view mirror breakout) S600 (right door harness, 4cm from power lock switch breakout) Side door contactor (right "b" pillar) Side door jamb switch Side door lock actuator Side door sw Tan Unlock Unlock sig Keyless Entry Wiring Diagram for Chevrolet Astro 1997 List of elements for Keyless Entry Wiring Diagram for Chevrolet Astro 1997: 58 (i/p harness, 17cm from right dash harness retainer clip) s230 (w/ cargo doors only) Batt (b+) Batt or release Battery (b+) Cig ltr fuse 13 20a Convenience center (behind left side of dash) Data link connector (under left side of dash) Dome lamps Dome lmp off Door lock control module (right kick panel) Door lock relay (right kick panel) Driver dr unlk G203 (right kick panel) Gauges fuse 4 10a Ground Hot at all times Hot in run or start I/p fuse block (left side of dash) Ignition Int lights Interior lights system Left door lock switch Left front door lock actuator Lock Lock out Lock sig Locks seats c.b. 30a Pass drs unlk Pnk Program sig Rear door lock actuator Remote control door lock receiver (behind right side of dash) Right door lock switch Right front door lock actuator Rr door unlk S213 S223 S227 S228 (i/p harness, 10cm from temperature control motor breakout) S229 S231 (i/p harness, 11cm from right dash harness retainer clip, toward cluster) S231 (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) S500 (left door harness, 6cm from rear view mirror breakout) S600 (right door harness, 4cm from power lock switch breakout) Side door contactor (right "b" pillar) Side door jamb switch Side door lock actuator Side door sw Tan Trunk, tail- gate, fuel doors system Unlock Unlock in Unlock sig W/ rear cargo doors W/ rear lift- gate/window W/ rear liftgate/ window
POWER MIRRORS Power Mirror Wiring Diagram for Chevrolet Astro 1997 List of elements for Power Mirror Wiring Diagram for Chevrolet Astro 1997: 20 (left door harn, 6.5 cm from outside mirror breakout) s501 (right door harn, 6.5 cm from outside mirror breakout) s604 Ctsy fuse 3 20a Down G116 (left side of saftey wall, above battery) Hot at all times I/p fuse block Illumination Interior lights system Left Left outside rearview mirror Left/ right motor Mirror select switch Nca Outside rearview mirror control switch Right Right outside rearview mirror S504 S505 Up/down motor
POWER SEATS 6-Way Power Seat Wiring Diagram for Chevrolet Astro 1997 List of elements for 6-Way Power Seat Wiring Diagram for Chevrolet Astro 1997: 30 (left side of safety wall, above battery) (near left Back C202 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 (lower left side of i/p) Kick panel) Locks seats circuit breaker 30a Pass- enger rear tilt seat motor Passenger forward/ rearward seat motor Passenger front tilt seat motor Passenger seat adjuster switch Rear height S206 S227 S323 S332 Tan
POWER WINDOWS Power Window Wiring Diagram for Chevrolet Astro 1997 List of elements for Power Window Wiring Diagram for Chevrolet Astro 1997: 17 Auto down module G116 (left side of safety wall, above battery) G901 (right front a-pillar above door jamb switch) Hot in run I/p fuse block Interior lights system Left front switch Left front window motor Left power window master switch Right front switch Right front window motor Right front window switch S305 S504 S601 Tan Windows circuit breaker 30a
RADIO Base Radio for Chevrolet Astro 1997 List of elements for Base Radio for Chevrolet Astro 1997: 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 1997 List of elements for Premium Sound Radio Wiring Diagram, with Rear Controls for Chevrolet Astro 1997: 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 1997 List of elements for Premium Sound Radio Wiring Diagram, without Rear Controls for Chevrolet Astro 1997: 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 1997 List of elements for Shift Interlock Wiring Diagram for Chevrolet Astro 1997: 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 1997 List of elements for Charging Wiring Diagram for Chevrolet Astro 1997: 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 1997 List of elements for Starting Wiring Diagram for Chevrolet Astro 1997: 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 1997 List of elements for Supplemental Restraint Wiring Diagram for Chevrolet Astro 1997: 42 A nca A16 Air bag fuse 10 10a Air bag lamp Audio alarm module B17 Bar Convenience center Data line Data link connector (left i/p) Door jamb switch) Driver high Driver inflator module (center of steering wheel) Driver low Front end discriminating sensor (front of radiator) G900 (left front a pillar, above G999 (upper left d pillar) Gauges fuse 4 10a Hot in run or start I/p fuse block Ign 1 Instrument cluster Lamp control Lf seat belt input Nca Pass high Pass low Passenger inflator module (right i/p) Pnk S213 (i/p harn, in breakout to headlamp sw) S300 (left kick pnl, near breakout to park brake switch) S304 (left kick pnl, near breakout to park brake switch) S319 (left rear d pillar, near ground g999) Safety belt retractor switch (in driver's belt buckle) Seat belt sig Sensing diagnostic module (under driver's seat) Shorting Shorting bar Sir coil assembly Sir fwd sens Sir ground Tan
TRANSMISSION
4.3L 4.3L (VIN W), Transmission Wiring Diagram for Chevrolet Astro 1997 List of elements for 4.3L (VIN W), Transmission Wiring Diagram for Chevrolet Astro 1997: 86 (1996) s107 (1997) s117 (1998) s117 (1998) s114 (1997) s110 (1996) s101 (eng harn, 17 cm from relay center breakout) -1996) (behind left side of dash) (eng harn, 10 cm from uh relay ctr breakout) s100 (1996) s113 (1997-98) (eng harn, 12 cm from linear egr sol break- out (1998) s111 (1998) s111 (1996-97) (eng harn, 12 cm from generator breakout (1996-97) (eng harn, approx 10 cm (1997) or 48 cm (1998) from break- out of 36-pin conn at left side of dash) (eng harn, approx 4 cm from uh fuse/relay center breakout -1997-98) (eng harn, approx 6 cm from linear egr sol breakout-1998) (eng harn, approx 6 cm from generatior breakout-1996-97) (on throttle body) (to left of 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 Automatic transmission fluid pressure manual valve position switch Battery feed Brake Brake signal Center (eng compt near battery) Cruise control system Cruise engaged in Data link connector (below left side of dash) Ecm 1 fuse 20a Ecm b Ect signal Electronic brake control module Engine controls system Engine coolant temperature sensor Fuel injectors & ignition Fuel pump relay & oil pressure switch/ sender Fuse 18 10a Fuse 20 10a Fuse 20a G114 (left rear of engine) G116 (above battery) Generator) Hot at Hot in run Hot in run, bulb I/p fuse block Ignition feed Or start Pnk Press ctrl sol "hi" Press ctrl sol "lo" Pressure control solenoid Range signal "a" Range signal "b" Range signal "c" Red Run feed S102 (1996) (eng harn, 2 cm from lamp harn breakout) S105 (1996) s109 (1997) s109 (1998) S112 (1996) s116 (1997) s116 (1998) S112 (1997-98) S120 (1998) s120 (1997) s110 (1996) S209 (1996) s206 (1997-98) Sensor ground Serial data System gnd Tan Tcc pwm sol Tcc pwm sol ctrl Tcc sol Tcc sol ctrl Tcc/ stoplamp switch (on brake pedal bracket) 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 Vss out Vss output
TRUNK, TAILGATE, FUEL DOOR Rear Glass Release Wiring Diagram for Chevrolet Astro 1997 List of elements for Rear Glass Release Wiring Diagram for Chevrolet Astro 1997: 32 (19.5 cm from g998 breakout, upper half of right "d" pillar) s406 (i/p harn, 4 cm from heater a/c ctrl breakout) (w/ rke) s225 (i/p harn, 4 cm from lifgate release switch breakout) Endgate lock switch (right rear door lock cylinder) G114 (left rear of engine block) G900 (right front "a" pillar) G998 (upper half of right "d" pillar) Hot at all times Hot with headlamp switch in park or head I/p fuse block Illum fuse 14 10a Liftgate lock/latch module (right rear of vehicle, near "d" pillar) Liftgate release switch Lock Locks seats circuit breaker 30a Logic Logic in Park/ neutral position and backup lamp switch (left cntr of trans) Rear door lock motor Rear liftgate release motor Remote control door lock receiver (right side of i/p) Remote unlock Right liftgate strut switch (open w/ gate closed) (right side of liftgate) S125 S219 S226 (w/ rke) S227 S229 S405 (8 cm from lift- gate lock/latch mod breakout) S407 Solid state device equivalence Unlock
WARNING SYSTEMS Warning System Wiring Diagrams for Chevrolet Astro 1997 List of elements for Warning System Wiring Diagrams for Chevrolet Astro 1997: 35 A12 Audio alarm module (in convenience center) Battery input Fasten belts out G114 (left rear of engine block) G116 (left side of safety wall) G125 (thermostat housing) G999 (upper left 'd' pillar) Gages 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 (in left side of steering column) Left door jamb switch Lights on input Pnk S117 S204 S206 S213 S219 S221 S304 (left kick panel, 1 cm from park brake sw breakout) S319 Safety belt input Safety belt retractor switch (seat belt buckle assy) Seat belt indicator Stop/haz fuse 1 20a Tan
WIPER/WASHER Front Washer/Wiper Wiring Diagram for Chevrolet Astro 1997 List of elements for Front Washer/Wiper Wiring Diagram for Chevrolet Astro 1997: 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 1997 List of elements for Rear Wiper/Washer Wiring Diagram for Chevrolet Astro 1997: 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
