All Wiring Diagrams for Chevrolet Astro 1999 model

AIR CONDITIONING

Compressor Wiring Diagram for Chevrolet Astro 1999

List of elements for Compressor Wiring Diagram for Chevrolet Astro 1999:

• 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:

• (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:

• (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:

• 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:

• (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:

• (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:

• 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:

• (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:

• (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:

• (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:

• (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:

• (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:

• 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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• (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:

• 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:

• (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:

• (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:

• (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:

• 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:

• (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:

• (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:

• 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:

• (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:

• (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:

• (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:

• 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:

• (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:

• (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