All Wiring Diagrams for Chevrolet Astro 1994 model

ANTI-LOCK BRAKES

All-Wheel ABS Wiring Diagram, with DRL for Chevrolet Astro 1994

List of elements for All-Wheel ABS Wiring Diagram, with DRL for Chevrolet Astro 1994:

(16 ga-
(behind left side of i/p)
(in engine
(lf wheel hub)
(rf wheel hub)
Abs ind
Anti- lock ind.
Anti-lock module (4wal) (left front of cowl, on brake master cylinder)
Bpmv ground
Bpmv pwr
Brake fuse 15a
Brake ind.
Brake pressure warning switch
Brake sw
Brake warn ind
Cluster
Compt, near
Data link connector
Daytime
Diagnostic request
Diode (left side of cowl)
Fuse block:i/p
Fusible
G108 (on radiator support, near left headlamp)
Gages fuse 20a
Hot at all times
Hot in run
Hot in run or start
Ignition switch
Instrument
Left front wheel sensor
Lf sensor-hi
Lf sensor-lo
Link
Master cylinder)
Nca
Output
Park brake warning switch (at park brake pedal)
Pnk/
Pump motor gnd
Pump motor pwr
Red
Rf sensor-hi
Rf sensor-lo
Right front wheel sensor
Running lamps module
Speed
Tan
Tan/
Tcc/ brake switch (on brake pedal support arm)
Vehicle
Vehicle speed in
Vehicle speed sensor buffer (behind i/p, right side of steering column)

All-Wheel ABS Wiring Diagram, without DRL for Chevrolet Astro 1994

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List of elements for All-Wheel ABS Wiring Diagram, without DRL for Chevrolet Astro 1994:

(16 ga-
(in engine compt,
(lf wheel hub)
(rf wheel hub)
Abs ind
Anti- lock ind.
Anti-lock module (4wal) (left front of cowl, on brake master cylinder)
Bpmv ground
Bpmv pwr
Brake fuse 15a
Brake ind.
Brake pressure
Brake sw
Brake warn ind
Cluster
Cowl)
Data link connector
Diagnostic request
Diode (left
Fuse block:i/p
Fusible
G108 (on radiator support, near left headlamp)
Gages fuse 20a
Hot at all times
Hot in run
Hot in run or start
Instrument
Left front wheel sensor
Lf sensor-hi
Lf sensor-lo
Link
Nca
Near master cylinder)
Output
Park brake warning switch (at park brake pedal)
Pnk/
Pump motor gnd
Pump motor pwr
Red
Rf sensor-hi
Rf sensor-lo
Right front wheel sensor
Side of
Speed
Tan
Tcc/ brake switch (on brake pedal support arm)
Vehicle
Vehicle speed in
Vehicle speed sensor buffer (behind i/p, right side of steering column)
Warning lamp switch

COMPUTER DATA LINES

Data Link Connector Wiring Diagram for Chevrolet Astro 1994

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List of elements for Data Link Connector Wiring Diagram for Chevrolet Astro 1994:

(behind left side of i/p, near convenience center)
(top of engine, near thermostat housing)
A11
A14 diagnostic test c288
Anti-lock module (left front of diagnostic cowl, on brake master cylinder)
C181
C223a
C297
Data
Data link connector
Diagnostic energy rerserve module (behind left side diagnostic of i/p, near kick panel)
F9 serial data c204
G110
Powertrain control module (behind right kick panel)
Request
Serial

CRUISE CONTROL

4.3L

4.3L (VIN W), Cruise Control Wiring Diagram for Chevrolet Astro 1994

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List of elements for 4.3L (VIN W), Cruise Control Wiring Diagram for Chevrolet Astro 1994:

(behind right kick panel)
B10
Brake fuse 15a
Brake in (vent/vac)
C12
C231
C267
C268
C269
C288
Closed
Column)
Connected to throttle linkage
Convenience center (ground bus bar) (behind left side of
Cruise control brake switch (below instrument panel, on brake pedal support)
Cruise control module (under left side of instrument
Cruise control servo (on bracket at intake manifold)
Cruise control switch
Cruise input
Cruise on input
Fuse block
G108 (on left radiator support)
Gages fuse 20a
Ground
Hot in run
Hot in run, bulb test or start
Instrument panel)
Nca
Off
Panel, on right side of steering column)
Pcm signal
Pnk/
Powertrain control module (pcm)
R/a
R/a signal
S/c
S/c signal
Sensor posit input
Servo posit input
Servo position sensor
Solid state
Speed sensor input
Tan
To brake cruise release valve (vents with brake pedal depressed)
Vac valve control
Vacuum motor
Vacuum release port
Vacuum source
Vacuum valve
Variable a/c signal
Vehicle speed sensor (at rear of transmission)
Vehicle speed sensor buffer (behind instrument panel, right side of steering
Vent
Vent valve
Vent valve control

4.3L (VIN Z), Cruise Control Wiring Diagram for Chevrolet Astro 1994

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List of elements for 4.3L (VIN Z), Cruise Control Wiring Diagram for Chevrolet Astro 1994:

(behind right kick panel)
B10
Brake fuse 15a
Brake in (vent/vac)
C12
C231
C267
C268
C269
C288
Closed
Column)
Connected to throttle linkage
Convenience center (ground bus bar) (behind left side of
Cruise control brake switch (below instrument panel, on brake pedal support)
Cruise control module (under left side of instrument
Cruise control servo (on bracket at intake manifold)
Cruise control switch
Cruise input
Cruise on input
Fuse block
G108 (on left radiator support)
Gages fuse 20a
Ground
Hot in run
Hot in run, bulb test or start
Instrument panel)
Nca
Off
Panel, on right side of steering column)
Pcm signal
Pnk/
Powertrain control module (pcm)
R/a
R/a signal
S/c
S/c signal
Sensor posit input
Servo posit input
Servo position sensor
Solid state
Speed sensor input
Tan
To brake cruise release valve (vents with brake pedal depressed)
Vac valve control
Vacuum motor
Vacuum release port
Vacuum source
Vacuum valve
Variable a/c signal
Vehicle speed sensor (at rear of transmission)
Vehicle speed sensor buffer (behind instrument panel, right side of steering
Vent
Vent valve
Vent valve control

DEFOGGERS

Defogger Wiring Diagram for Chevrolet Astro 1994

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List of elements for Defogger Wiring Diagram for Chevrolet Astro 1994:

(at right d-pillar,
(on left radiator
C283
C293
C294
Convenience center (behind left side of i/p)
Fuse block
G108
G998
Gauges fuse 20a
Hot at all times
Hot in run, bulb test or start
Hot with headlight switch in park or head
Indicator
Instr lps fuse 10a
Liftgate release
Near liftgate support strut)
Off
Panel lamps
Park/ neutral position switch
Pwr/acc circuit breaker 30a
Rear defogger grid
Rear defogger switch
Rear window strut
Rear wiper/washer
Rear defogger timer relay (behind left side of i/p, near heater control)
Rear lift- gate release switch
Rear window wiper/ washer switch
Solid state
Support)

ENGINE PERFORMANCE

4.3L

4.3L (VIN W), Engine Performance Wiring Diagrams (1 of 2) for Chevrolet Astro 1994

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List of elements for 4.3L (VIN W), Engine Performance Wiring Diagrams (1 of 2) for Chevrolet Astro 1994:

12v battery
12v ignition
5v return a
5v return b
5v sensor ref
A/c compressor clutch
A/c on signal in
A10
A11
A12
A13
A14
A15
A16
B10
B11
B12
B13
B14
B15
B16
Brake sw to pcm
Bulb test or start
Coolant temp sensor
Cruise control module
Cruise ind reg grd
Data link connector (behind left side of i/p)
Distributor ref hi
Distributor ref lo
Dlc
Dlc serial data
E10
E11
E12
E13
E14
E15
E16
Ecm/batt fuse 15a
Ecm/ign fuse 10a
Egr position input
Egr valve solenoid
Elec fuel pump in
Evap canister purge ctrl
F10
F11
F12
F13
F14
F15
F16
Fuel injector (top of engine inside plenum)
Fuel pump and sender (at fuel tank)
Fuel pump prime connector (engine compartment on center of cowl)
Fuel pump relay (right cowl, above blower motor)
Fuel pump relay ctrl
Fuel pump/ oil pressure switch (top rear of engine, near distributor)
Fuse block (behind left side of i/p)
G110 (top front of engine)
G114 (left rear of engine)
Gauges fuse 20a
Hot at all times
Hot in run,
Iat sensor input
Ignition bypass
Ignition control (ic)
Instrument cluster
Knock sensor (rear of right cylinder head)
Knock sensor (rear side of left cylinder head)
Knock sensor in
Lo side inj a
Malfunction indicator lamp
Map sensor in
Mil indicator ctrl
Oxygen sensor hi
Oxygen sensor lo
Pcm to trans temp sensor
Pcm trans force mtr hi
Pcm trans force mtr lo
Pcm trans range a
Pcm trans range b
Pcm trans range c
Pcm trans shift sol a
Pcm trans shift sol b
Pnk
Powertrain control module (behind right side of i/p)
Red
Stepper coil a hi
Stepper coil a lo
Stepper coil b hi
Stepper coil b lo
System ground
Tan
Tcc clutch ctrl
Throttle position sensor in
Trans shift 3/2 solenoid
Variable tuning control relay (engine compartment, right side of cowl)
Variable tuning control solenoid (center top of intake manifold)
Variable tuning ctrl rly
Vss buffer signal

4.3L (VIN W), Engine Performance Wiring Diagrams (2 of 2) for Chevrolet Astro 1994

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List of elements for 4.3L (VIN W), Engine Performance Wiring Diagrams (2 of 2) for Chevrolet Astro 1994:

(front of engine)
(left rear of engine)
(top rear
1-2 shift sol
2-3 shift sol
3-2 control solenoid
Accy
Assembly
Brake fuse 15a
Bulb test
C11
C12
C13
Distributor
Electronic 4-speed automatic overdrive transmission
Engine coolant tmperature sensor
Evaporative canister purge solenoid (top left side of engine)
Fuse block (behind left side of i/p)
G114
Heated oxygen sensor (in y-pipe)
Hot at all times
Hot in run
Idle air control valve (top front of engine near a/c compressor)
Ignition coil
Ignition switch
Intake air tmperature sensor (top left front of engine, near generator)
Linear egr solenoid (top front of engine)
Lock
Manifold absolute pressure sensor (left side of plenum)
Nca
Of engine)
Off
Pnk
Pressure control solenoid
Red
Run
Start
Tachometer test lead
Tan
Tcc sol
Tcc/brake switch (on brake pedal support)
Throttle position sensor (top left front of engine)
Trans range press sw assembly
Trans- mission fluid temp sensor
Vehicle speed sensor (left rear side of transmission)
Vehicle speed sensor buffer (behind right side of i/p)

4.3L (VIN Z), Engine Performance Wiring Diagrams (1 of 3) for Chevrolet Astro 1994

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List of elements for 4.3L (VIN Z), Engine Performance Wiring Diagrams (1 of 3) for Chevrolet Astro 1994:

(left top front
12v battery
12v ignition
5v return a
5v return b
5v sensor ref
A/c on signal in
A10
A11
A12
A13
A14
A15
A16
Air condition- ing system
B10
B11
B12
B13
B14
B15
B16
Brake sw to pcm
C204
C288
Coolant temp sensor
Cruise control system
Cruise ind reg grd
Distributor ref hi
Distributor ref lo
Dlc
Dlc serial data
E10
E11
E12
E13
E14
E15
E16
Ecm-ign fuse 10a
Egr valve solenoid
Elec fuel pump in
Engine control module (under right side of i/p)
Evap canister purge ctrl
Evaporative canister purge solenoid (on engine)
F10
F11
F12
F13
F14
F15
F16
Fuel pump relay ctrl
Fuse block
G110
G110 (left top front of engine)
Hot in run, bulb test, or start
Idle air control unit (right rear of tbi unit)
Ignition bypass
Ignition control (ic)
Knock sensor in
Linear egr input
Linear egr valve (right top of engine)
Lo side inj a
Lo side inj b
Map sensor in
Mil indicator ctrl
Of engine)
Oxygen sensor hi
Oxygen sensor lo
Pcm to trans temp sensor
Pcm trans force mtr hi
Pcm trans force mtr lo
Pcm trans range a
Pcm trans range b
Pcm trans range c
Pcm trans shift sol a
Pcm trans shift sol b
Pnk
Red
Stepper coil a hi
Stepper coil a lo
Stepper coil b hi
Stepper coil b lo
System ground
Tan
Tcc clutch ctrl
Throttle body fuel injector #1 (top of throttle body unit)
Throttle body fuel injector #2 (top of throttle body unit)
Throttle position sensor in
Trans shift 3/2 solenoid
Vss buffer signal

4.3L (VIN Z), Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Astro 1994

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List of elements for 4.3L (VIN Z), Engine Performance Wiring Diagrams (2 of 3) for Chevrolet Astro 1994:

(center rear
(rear of engine)
Accy
Brake fuse 15a
Bulb test
Distributor
Engine coolant temperature sensor (right top front of engine)
Fuse block
Gauges fuse 20a
Hot at all times
Hot in run, bulb test, or start
Ignition coil (center rear of engine)
Ignition switch
Instrument cluster
Knock sensor
Knock sensor (right side of engine, below exhaust manifold)
Lock
Manifold absolute pressure sensor (right rear top of engine)
Nca
Of engine)
Off
Pnk
Red
Run
Service engine soon indicator
Start
Tachometer test lead
Tcc/brake switch (top of brake pedal bracket)
Throttle position sensor (right side of throttle body)

4.3L (VIN Z), Engine Performance Wiring Diagrams (3 of 3) for Chevrolet Astro 1994

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List of elements for 4.3L (VIN Z), Engine Performance Wiring Diagrams (3 of 3) for Chevrolet Astro 1994:

(analog)
(digital)
3-2 shift solenoid
A11
A9 c9
C11
C12
C13
C14
C209
C226
C232
Cluster
Data link connector (under left side of i/p)
Diagnostic energy reserve module (derm) (behind left side of i/p, near kick panel)
Ecmb fuse 15a
Electronic 4-speed automatic overdrive transmission
Fuel pump and sender
Fuel pump oil pressure switch (left rear of engine, near exhaust manifold)
Fuel pump prime connector
Fuel pump relay (right rear of engine compartment, near battery junction block)
Fuse block
G110 (left top front of engine)
G117 (rear of right cylinder head)
Heated oxygen sensor (in exhaust y-pipe)
Hot at all times
Instrument
Oil press in
Pnk
Pressure control solenoid
Range mode selector
Red
Shift sole- noid 1-2
Shift solenoid 2-3
Tan
Torque converter clutch solenoid
Trans- mission temp sensor
Vehicle speed sensor (left rear of transmission)
Vehicle speed sensor buffer (under right end of i/p)
Vss in

EXTERIOR LIGHTS

Exterior Light Wiring Diagram for Chevrolet Astro 1994

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List of elements for Exterior Light Wiring Diagram for Chevrolet Astro 1994:

30a
Audio alarm module
Auxiliary lead
Backup lamp switch (on steering column)
Backup lamps
Battery junction block (near battery)
C202
C209
C232
C233
Center high mounted stoplamp
Cluster
Convenience center (behind left side of i/p)
Fuse block
Fuse block: i/p
G108 (on radiator support, near left headlamp)
G108 (on radiator support, near left headlamp)
G109 (on radiator support, near right headlamp)
G998 (right 'd' pillar)
G999 (left 'd' pillar)
Hazard
Hazard flasher
Head
Headlamp switch assembly
Headlights system (fog lamp switch)
Hot at all times
Hot in run or start
Inline fuse (trailer tow)
Instrument cluster
Left backup lamp
Left front marker lamp
Left front park/ turn lamp
Left headlamp
Left rear marker lamp
Left tail/stop/ turn lamp
Left turn indicator
License lamp
Normal
Off
Park
Power input
Red
Right backup lamp
Right front marker lamp
Right front park/ turn lamp
Right rear marker lamp
Right tail/stop/ turn lamp
Right turn indicator
Stop-haz fuse 15a
Stoplamp/ cruise brake switch (on brake pedal support) c215
Tail lps fuse 20a
Trailer tow
Turn b/u fuse 20a
Turn flasher
Turn left
Turn right
Turn/hazard switch (left side of steering column)
W/ daytime running lamps

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram for Chevrolet Astro 1994

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List of elements for Ground Distribution Wiring Diagram for Chevrolet Astro 1994:

(center of cowl)
(on left
(on left radiator
(rear lamp harness at right "d" pillar)
4wal module
4wal pump motor
A/c blower motor relay
A/c comp- ressor
A12
A15
A16
Ashtray lamp
Auxiliary lamps
B c182
Battery
Blower motor
Brake/
C11
C17
C207a
C209
C231
C232
C238
C268
C280
C288
Center high mount lamp
Cigarette lighter
Convenience center
Cruise control module
Cruise control servo
Data link connector (dlc)
Daytime running lamps module
Daytime running lamps relay
Diagnostic energy reserve module
Digital
Diode
Dome lamp overide
Electronic cluster
Fog lamp switch
Fuel pump
Fuel pump relay
G107 (on radiator support, behind right headlamp)
G108
G108 (left radiator support)
G108 (on left radiator support)
G108 radiator support)
G110 (top of engine, near thermostat housing)
G114 (left rear of engine)
G115 (top rear of engine)
G119 (lower right front of engine)
G121
G998
G998 (rear lamp harness at right "d" pillar)
G999 (left "d" pillar)
Heated oxygen sensor
Heater and a/c control lamp
I/p comp- artment box lamp
Instrument cluster
J c181
Left backup lamp
Left front park/ turn lamp
Left headlamp
Left marker lamp
Left power window switch
Left tail/ stop- turn lamp
License lamp
Nca
Panel dimmer switch assembly
Park/ neutral position switch
Power door lock delay module
Power door lock delay relay
Power door lock relay
Power mirror switch
Powertrain control module (pcm)
Prndl illum- ination lamp
Prndl illum- ination relay
Radio
Rear auxiliary a/c
Rear auxiliary heater
Rear defogger switch
Rear defogger timer relay
Rear door jamb switch
Rear liftgate key switch
Rear liftgate lock/ latch module
Rear liftgate release switch
Rear liftgate right strut
Rear liftgate solenoid
Rear washer pump
Rear window defogger
Rear wiper motor
Right backup lamp
Right front park/ turn lamp
Right headlamp
Right marker lamp
Right tail/ stop- turn lamp
Shift interlock relay
Shift interlock solenoid
Standard
Support)
Tan
Trailer wiring
Transmission
Trip switches
Uncoated
Variable tuning control solenoid
Vehicle speed sensor buffer module
W/ digital cluster
W/ drl
W/ trailer wiring harness
Windshield washer pump
Windshield wiper motor module

HEADLIGHTS

Headlamps/Fog Lamps Wiring Diagram, DRL with Sealed Beam Lamps for Chevrolet Astro 1994

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List of elements for Headlamps/Fog Lamps Wiring Diagram, DRL with Sealed Beam Lamps for Chevrolet Astro 1994:

Bulb check
Convenience center bus bar ground
Daytime running lamp indicator
Daytime running lamps module (behind left side of i/p)
Daytime running lamps relay (engine compartment front plenum panel)
Drl fuse 10a
Fog lamp on indicator
Fog lamp relay (behind left side of i/p)
Fog lamp switch
Fog lamps
Fog lps fuse 15a
Fuse block
G107 (on radiator support, behind right headlamp)
G108 (on left radiator support)
Gages fuse 20a
Ground
Head
Headlamp dimmer switch
Headlight switch assembly
Hi beam feed
Hi beam indicator
Hot at all times
Hot in run, bulb test or start
Ignition
Illum lamp
Instr lps fuse 10a
Instrument cluster
Lamp feed
Left fog lamp
Left headlamp assembly
Off
Output to relay
Park
Park brake switch (at park brake, under left side of i/p)
Right fog lamp
Right headlamp assembly
Tan
Variable voltage w/ headlight switch in park or head & rheostat adjusted

Headlamps/Fog Lamps Wiring Diagram, with Sealed Beam Lamps for Chevrolet Astro 1994

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List of elements for Headlamps/Fog Lamps Wiring Diagram, with Sealed Beam Lamps for Chevrolet Astro 1994:

(analog)
(analog) (electronic)
(electronic)
1994 vftc c
Fog lamp on indicator
Fog lamp relay (behind left side of i/p)
Fog lamp switch
Fog lps fuse 15a
Fuse block
G107 (on radiator support, behind right headlamp)
G108 (on left radiator support)
Head
Headlamp dimmer switch
Headlight switch assembly
Hi beam indicator
Hot at all times
Illum lamp
Instr lps fuse 10a
Instrument cluster
Left fog lamp
Left headlamp assembly
Off
Park
Right fog lamp
Right headlamp assembly
Tan
Variable voltage w/ headlight switch in park or head & rheostat adjusted

HORN

Horn Wiring Diagram for Chevrolet Astro 1994

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List of elements for Horn Wiring Diagram for Chevrolet Astro 1994:

Convenience center (behind left side of i/p)
Fuse panel
Horn relay
Horn slip ring
Horn switch
Horn/dm fuse 30a
Hot at all times
Left horn (left front of radiator support)
Right horn (right front of radiator support)
Steering wheel

INSTRUMENT CLUSTER

Analog Cluster Wiring Diagram for Chevrolet Astro 1994

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List of elements for Analog Cluster Wiring Diagram for Chevrolet Astro 1994:

(behind left
(behind left side of i/p)
(behind left side of i/p,
(behind right
(headlight
(in engine compt front plenum panel)
(left front of cowl, on
(left rear of engine)
(on radiator support, near left headlamp)
(right front
(turn-hazard
A11
A12
A13
A14
A15
A16
A17
A18
Air bag ind.
Anti-lock
Anti-lock brakes ind.
Anti-lock module (left front of cowl, on brake master cylinder)
Audio alarm
B10
B11
B12
B14
Battery ind.
Brake ind.
Brake master
Brake pressure warning switch (in engine compt, near master cylinder)
Center)
Conn a
Conn b
Control module
Convenience
Coolant temp.
Coolant temperature gauge
Cylinder)
Daytime
Daytime running
Daytime running lamps relay
Diagnostic energy
Dimmer switch)
Diode (left side of cowl)
Drl ind.
Engine coolant temperature sensor (left side of engine)
Exterior lights
Fuel gauge
Fuel level
Fuel sender unit (inside fuel tank)
Fuse block: i/p
G108
G114
Gauges fuse 20a
Generator
Gnd
Headlights system
High beam ind.
Hot in run or start
Ign
Ignition switch
Illum.
Illum. lamps
Instr lps fuse 10a
Instrument cluster
Kick panel)
Lamps module
Left turn ind.
Mal- function ind.
Module
Near kick panel)
Of engine)
Oil press.
Oil pressure gauge
Oil pressure switch & sender (top rear of engine)
Park brake warning switch (at park brake pedal)
Powertrain
Reserve module
Right turn ind.
Running lamps module (behind left side of i/p)
Safety belt ind.
Side of i/p, in
Speedo- meter
Switch)
System
Tan
Twisted pair
Variable voltage w/ head/park lamps on & dimmer sw adjusted
Vehicle speed
Vehicle speed sensor (at rear of transmission)
Vehicle speed sensor buffer (behind i/p, right side of steering column)
Volt- meter
W/ drl
W/ drl only
W/o drl

Electronic Cluster Wiring Diagram for Chevrolet Astro 1994

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List of elements for Electronic Cluster Wiring Diagram for Chevrolet Astro 1994:

(at rear of
(behind i/p,
(behind left
(behind left side of i/p)
(behind left side of i/p,
(behind right
(headlight
(in engine compt front plenum panel)
(left front of cowl, on
(left rear of engine)
(not used)
(on radiator support, near left headlamp)
(right front
(top rear of engine)
(turn-hazard
A10
A11
A12
A13
A14
Air bag ind.
Anti- lock ind.
Anti-lock
Anti-lock module (left front of cowl, on brake master cylinder)
Audio alarm
B10
B11
B12
B13
B15
B16
Battery
Battery telltale
Brake fuse 15a
Brake ind.
Brake master
Brake pressure warning switch (in engine compt, near master cylinder)
Brake switch
Center)
Conn a
Conn b
Control module
Convenience
Coolant temperature
Cylinder)
Daytime running
Daytime running lamps relay
Diagnostic energy
Digital display
Dimmer switch)
Diode (left side of cowl)
Drl ind.
E/m
Eng/metric switch
Engine coolant temperature sensor (left side of engine)
Exterior lights
Fuel level
Fuel sender unit (inside fuel tank)
Fuse block:i/p
G108
G114
Gauges fuse 20a
Generator
Gnd
Head
Headlight switch assembly
Headlights system
High beam ind.
Hot at all times
Hot in run
Hot in run or start
I/p cluster switches
Ign
Ignition 3 (run)
Ignition switch
Instr lps fuse 10a
Instrument cluster
Kick panel)
Lamps module
Left turn ind.
Mal- function ind.
Module
Near kick panel)
Of engine)
Off
Oil pressure
Oil pressure switch & sender
Pair
Panel lamp dimmer
Park
Park brake warning switch (at park brake pedal)
Park lamp switch
Power ground
Powertrain
Prndl illum. lamp
Reserve module
Reset
Right side of
Right turn ind.
Safety belt ind.
Side of i/p, in
Signal ground
Speed sensor
Steering column)
Stop/ hz fuse 20a
Switch)
System
Tan
Transmission range indicator relay (left side of i/p, near steering column)
Transmission)
Trip
Trip reset switch
Trip/season odometer switch
Twisted
Variable voltage w/ lamps on & dimmer sw adjusted
Vehicle
Vehicle speed sensor buffer
Vehicle speed signal
W/ drl
W/ drl only
W/o drl

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram, with Auxiliary Lighting for Chevrolet Astro 1994

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List of elements for Courtesy Lamps Wiring Diagram, with Auxiliary Lighting for Chevrolet Astro 1994:

Ashtray lamp
Cover switch
Dome lamp override switch
Dome lamp switch override switch jumper
Front dome and reading lamps
Front dome lamps
Front reading lamps
Fuse block
G108 (on left radiator support)
G404 (left rear of cargo compt)
G908 (above dome lamp roof console)
Gages fuse 20a
Hi/low switch
Horn/dm fuse 30a
Hot at all times
Hot in run or start
Hot w/ headlight switch in park or headlight
I/p compartment box lamp
If equipped
Instr-lps fuse 10a
Left front door jamb switch
Left stepwell lamp
Nca
Overhead console
Panel dimmer switch
Rear dome lamp
Rear door jamb switch
Rear reading lamps
Right front door jamb switch
Right stepwell lamp
Sliding door jamb switch
Sliding door stepwell lamp
Visor/ vanity mirror lamps
W/ c95
W/ dk6
W/ tr9
W/o tr9

Courtesy Lamps Wiring Diagram, without Auxiliary Lighting for Chevrolet Astro 1994

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List of elements for Courtesy Lamps Wiring Diagram, without Auxiliary Lighting for Chevrolet Astro 1994:

Courtesy switch
Front dome lamp
Fuse block
G108 (left radiator support)
Horn/dm fuse 30a
Hot at all times
Left front door jamb switch
Panel dimmer switch
Rear dome lamp
Right front door jamb switch

Instrument Illumination Wiring Diagram, with Analog Cluster for Chevrolet Astro 1994

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List of elements for Instrument Illumination Wiring Diagram, with Analog Cluster for Chevrolet Astro 1994:

(4) bulbs
Audio alarm module
C17
C18
C232
Convenience center
Dim
Fog lamp switch illumination lamp
Fuse block
G108 (on left radiator support)
Head
Headlight switch assembly
Heater & a/c control illumination lamps
High
Hot at all times
Instr lps fuse 10a
Instrument cluster
Light switch
Off
Panel dimmer switch assembly
Park
Radio
Solid state
Tail lps fuse 20a

Instrument Illumination Wiring Diagram, with Digital Cluster for Chevrolet Astro 1994

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List of elements for Instrument Illumination Wiring Diagram, with Digital Cluster for Chevrolet Astro 1994:

Audio alarm module
Convenience center
Dim
Electronic cluster
Fog lamp switch illumination lamp
Fuse block
G108 (on left radiator support)
Gages fuse 20a
Head
Headlight switch assembly
Heater & a/c control illumination lamps
High
Hot at all times
Hot in run or start
Instr lps fuse 10a
Light switch
Off
Panel dimmer switch assembly
Park
Radio
Solid state
Tail lps fuse 20a
Trans- mission range indicator lamp
Trans- mission range indicator relay (left side of i/p)

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 2) for Chevrolet Astro 1994

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List of elements for Power Distribution Wiring Diagram (1 of 2) for Chevrolet Astro 1994:

Accy
Anti- lock
B10
Base
Bat
Batt bus
Battery
Battery junction block
Bus
C10
C112 b
C137
C182
C198 fusible
C201
C202 c
C204
C207a c9
C213a
C274a
C275 e
C278
C289
C289 b
Cigarette lighter
Coil
Convenience center
Daytime running
Diagnostic
Drl fuse 10a
E16
Ecmb fuse 15a
Energy reserve module
Fog lamp relay
Fog lps fuse 15a
Front dome and reading lamp
Front dome lamp
Fuel pump relay
Fuel pump/ oil pressure switch
Fuse block
Fusible
G108 (on left padiator support)
Generator
Headlight switch assembly
Hi a/c blower relay
Horn relay
Horn/ dm fuse 30a
I/p compartment box lamp
Ignition
Ignition switch
In-line fuse 10a
In-line fuse 3a
In-line fuse 5a
Left stepwell lamp
Lights relay
Link rust
Link a
Link b
Link c
Link d
Lock
Module (4wal)
Nca
Off
Others
Overhead roof console
Pnk
Power mirror control switch
Power- train control module
Pulse wiper/ washer switch
Pwr acc
Radio
Radio fuse 15a
Rear dome lamp
Rear wiper motor
Rear wiper washer switch
Red
Right stepwell lamp
Right vanity mirror lamp
Run
Rust
Shunt
Sliding door stepwell lamp
Start
Starter solenoid
Tail lps fuse 20a
To stop-hz fuse & pwr acc circuit breaker (fuse block)
To brake, pwr wdo & htr a/c fuses (fuse block)
To emci, airbag, turn b/u & gages fuses (fuse block)
W/ auxilliary lighting package
W/ c95
W/ dk6
Wiper fuse 25a
Wiper motor and module

Power Distribution Wiring Diagram (2 of 2) for Chevrolet Astro 1994

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List of elements for Power Distribution Wiring Diagram (2 of 2) for Chevrolet Astro 1994:

(panel dimmer switch)
(vin w) (vin z)
A10
A13
Air bag fuse 10a
Antilock module (4wal)
Ashtray lamp
Audio alarm module
Aux htr a/c fuse 25a
Auxilliary heater and a/c blower motor
Auxilliary heater blower motor
Backup lamp switch
Blower switch or blower motor control switch
Brake fuse 15a
Brake switch
C204
C209
C216
C226
C232
C233
C235
C257
C258
C258a
C272
C276
C279
C283
C292
C293
C295
C421
C424
Canister purge solenoid
Convenience center
Cruise control switch
Daytime running lamps module
Daytime running lamps relay
Diagnostic energy reserve module
Door lock delay module
Door lock delay relay
Door lock relay
E15
Ecmi fuse 10a
Elec- tronic cluster
Electronic 4-speed overdrive transmission
Electronic cluster
Exhaust gas recirculation solenoid
F15
From c ignition switch
From fusible link b
From ignition switch
From interior lights system
Fuel injector
Fuse block
Gages fuse 20a
Generator
Hazard flasher
Heated oxygen sensor
Htr a/c fuse 20a
Ign bus
Instr lps fuse 10a
Instrument cluster
Left door lock switch
Left power seat
Left power window switch
Liftgate lock/ latch module
Linear egr solenoid
Pnk
Pnk/
Powertrain control module
Prndl illumination relay
Pwr acc bus
Pwr acc circuit breaker 30a
Pwr wdo bus
Pwr wdo circuit breaker 30a
Rear defogger switch
Rear defogger timer delay
Rear defogger timer relay
Red
Right door lock switch
Right front power window switch
Sensor arming module
Shunt
Stop- hz fuse 20a
Tcc/ brake switch
Throttle body fuel injectors
To interior lights system
Turn b/u fuse 20a
Turn signal flasher
Variable tuning control relay
Vehicle speed sensor buffer
Vin z only
W/ analog cluster
W/ auxilliary lighting package
W/ electronic cluster
W/ gage cluster
W/ l35 vin w engine
W/ lb4 vin z engine

POWER DOOR LOCKS

Power Door Lock Wiring Diagram for Chevrolet Astro 1994

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List of elements for Power Door Lock Wiring Diagram for Chevrolet Astro 1994:

Door lock control module (behind right side of i/p, on top of cowl panel)
Door lock delay relay (behind right side of i/p, on top of cowl panel)
Door lock relay (behind right side of i/p, on top of cowl panel)
Fuse block (left side of i/p)
G108 (behind left headlamp, on radiator support)
Ground
Hot at all times
Left door lock switch
Left front door lock motor
Lock
Lock enable input
Lock power input
Lock relay
Power
Pwr acc circuit breaker 30a
Rear door lock motor
Right door lock switch
Right front door lock motor
Side door contact buttons
Side door jamb switch
Side door lock motor
Tan
Unlock
Unlock power input
Unlock relay

POWER MIRRORS

Power Mirror Wiring Diagram for Chevrolet Astro 1994

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List of elements for Power Mirror Wiring Diagram for Chevrolet Astro 1994:

left outside power mirror
Convenience center bus bar ground
Down
Fuse block
Horn/dm fuse 30a
Hot at all times
Hot w/ headlight switch in park or head
In-line fuse
Instr lps fuse 30a
Left
Left/ right motor
Power mirror control switch
Right
Right outside power mirror
Switch illum lamp
Up/ down motor

POWER SEATS

Power Seat Wiring Diagrams for Chevrolet Astro 1994

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List of elements for Power Seat Wiring Diagrams for Chevrolet Astro 1994:

30a
Back
Convenience center bus bar ground
Down
Entire seat
For- ward
Forward/ rearward motor
Front height
Front tilt motor
Fuse block
Hot at all times
Power seat switch
Pwr acc circuit breaker
Rear height
Rear tilt motor
Tan

POWER WINDOWS

Power Window Wiring Diagram for Chevrolet Astro 1994

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List of elements for Power Window Wiring Diagram for Chevrolet Astro 1994:

Convenience center bus bar ground
Fuse block
Hot in run
Left front switch
Left front window motor
Left power window master switch
Pnk
Pwr wdo circuit breaker 30a
Right front switch
Right front window motor
Right front window switch
Tan

RADIO

Radio Wiring Diagrams for Chevrolet Astro 1994

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List of elements for Radio Wiring Diagrams for Chevrolet Astro 1994:

Antenna
B+ b+
Chime fuse 30a
Dim illum
Fuse block (behind left side of dash)
G108 (left radiator support)
Ground
Hot at all times
Hot in acc or run
Ign
In-line radio fuse 10a
Interior lights system
Left front speaker
Left rear indoor speaker
Left rear speaker
Lf +
Lf -
Lr +
Lr -
Nca
Park lps
Radio
Radio fuse 15a
Rf +
Rf -
Right front speaker
Right rear indoor speaker
Right rear speaker
Rr +
Rr -
S208
Tan

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Chevrolet Astro 1994

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List of elements for Shift Interlock Wiring Diagram for Chevrolet Astro 1994:

(behind left side of i/p)
1994 vftc c
Brake fuse 15a
Brake/shift interlock relay
Brake/transmission shift interlock solenoid (on steering column)
Column) (closed in park or neutral)
Engine controls system
Fuse block
G108 (on radiator support, near left headlamp)
Hot in run
Hot in run or start
Park/neutral position switch (on steering
Tcc/ brake switch (on brake pedal support bracket)
Turn b/u fuse 20a

STARTING/CHARGING

4.3L

4.3L (VIN W), Charging Wiring Diagram for Chevrolet Astro 1994

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List of elements for 4.3L (VIN W), Charging Wiring Diagram for Chevrolet Astro 1994:

(closes with low or high voltage; gen fault)
(fusible links a,b,c&d)
(left radiator support)
(not used)
(right front of engine)
Bat
Battery
C102
C12
Charge indicator (red)
Ci58
Field (rotor)
Front side of engine)
Fuse block
Fusible link (12 ga. rust)
G108
G119 lower right
Gauges fuse 20a
Generator
Hot in run, bulb test or start
Indicators
Instrument cluster
Power distribution
Rectifier bridge
Red
Regulator solid-state
Starter solenoid (lower right front of engine, on starter motor)
Stator
Sw bat
Turn on input
Volt sense input

4.3L (VIN W), Starting Wiring Diagram for Chevrolet Astro 1994

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List of elements for 4.3L (VIN W), Starting Wiring Diagram for Chevrolet Astro 1994:

(behind left side of instrument panel)
(fusible links a,c&d)
(lower right side of engine)
Accy
B solenoid contacts
B10
Bat
Battery
Bulb test
C198
C201
C202
C289
Diagnostic energy reserve module (behind left side of
Fuse block
Fusible link (12 ga. rust)
G108 left radiator support
G119 lower left front side of engine
Generator (right front of engine)
Hold-in winding
Ignition switch
In-line fuse (no location available)
Instrument panel, near kick panel)
Lock
Off
Power distribution
Pull-in winding
Pwr acc circuit breaker 30a
Red
Run
Start
Starter motor
Starter solenoid (lower right front of engine, on starter motor)
Stop- hz fuse 20a

4.3L (VIN Z), Charging Wiring Diagram for Chevrolet Astro 1994

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List of elements for 4.3L (VIN Z), Charging Wiring Diagram for Chevrolet Astro 1994:

(closes with low or high voltage; gen fault)
(fusible links a,b,c&d)
(left radiator support)
(not used)
(right front of engine)
Bat
Battery
C102
C12
Charge indicator (red)
Ci58
Field (rotor)
Front side of engine)
Fuse block
Fusible link (12 ga. rust)
G108
G119 lower right
Gauges fuse 20a
Generator
Hot in run, bulb test or start
Indicators
Instrument cluster
Power distribution
Rectifier bridge
Red
Regulator solid-state
Starter solenoid (lower right front of engine, on starter motor)
Stator
Sw bat
Turn on input
Volt sense input

4.3L (VIN Z), Starting Wiring Diagram for Chevrolet Astro 1994

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List of elements for 4.3L (VIN Z), Starting Wiring Diagram for Chevrolet Astro 1994:

(behind left side of instrument panel)
(fusible links a,c&d)
(lower right side of engine)
Accy
B solenoid contacts
B10
Bat
Battery
Bulb test
C198
C201
C202
C289
Diagnostic energy reserve module (behind left side of
Fuse block
Fusible link (12 ga. rust)
G108 left radiator support
G119 lower left front side of engine
Generator (right front of engine)
Hold-in winding
Ignition switch
In-line fuse (no location available)
Instrument panel, near kick panel)
Lock
Off
Power distribution
Pull-in winding
Pwr acc circuit breaker 30a
Red
Run
Start
Starter motor
Starter solenoid (lower right front of engine, on starter motor)
Stop- hz fuse 20a

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram for Chevrolet Astro 1994

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List of elements for Supplemental Restraint Wiring Diagram for Chevrolet Astro 1994:

(analog cluster)
(behind left side of i/p) data link connector
(electronic cluster)
2.49k
5.1k
8.45k
A10
A11
A12
Accy
Air bag fuse 10a
Air bag warning indicator
B10
B11
B12
Bulb test
C204
Crank
Diagnostic energy reserve module (behind left side of i/p, near kick panel)
Diagnostic request
Driver 36 vlr
Driver seat belt
Driver side hi
Driver side lo
Driver source sense
Fuse block: i/p
G108 (on radiator support, near left headlamp)
G108 (on radiator suppport, near left headlamp)
Gages fuse 20a
Gnd
Hot at all times
Hot in run, bulb test or start
Ignition 1
Ignition switch
In-line fuse
Instrument cluster
Instrument cluster system (electronic cluster pin #b15)
Left discriminating sensor (along front crossmember, benaeth radiator)
Lock
Off
Powertrain control module (behind right kick panel)
Redundant ind gnd
Redundant ind ign1
Right discriminating sensor (along front crossmember, benaeth radiator)
Run
Seat belt warning switch seat belt warning switch
Sensor arming module (above transmission, at center of crossmember)
Serial data
Shorting bar
Sir ind
Start
Starting/charging system (starter motor solenoid)
Steering wheel inflator module
Tan
Warning system (audio alarm module)

TRANSMISSION

Transmission Wiring Diagram, 4L60-E for Chevrolet Astro 1994

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List of elements for Transmission Wiring Diagram, 4L60-E for Chevrolet Astro 1994:

(behind right kick panel)
1-2 shift sol
1-2 shift sol ctrl
12 volt batt in
12 volt ignition in
2-3 shift sol
2-3 shift sol ctrl
3-2 control solenoid
5 volt return a
5 volt return b
5 volt sensor ref
A12
A14
A15
All times
B10
C11
C12
C13
C288
Cc204
Coolant temp in
Coolant temp sensor (vin z) (left side of engine) (vin w) (top front of engine)
Cruise control in
Cruise control module (under left i/p, right side of steering column)
Data link connector (left i/p, near convenience center) (partial)
Dlc
E10
E13
E15
E16
Electronic 4-speed automatic overdrive transmission (4l60e)
F10
F12
F13
F14
F15
Fuse brake 15a
Fuse ecm ign 10a
Fuse ecmb 15a
Fuse gages 20a
G114 (left rear of engine)
G125 (top of engine, near thermo- stat housing)
Ground
Hot at
Hot in run
Hot in run, bulb
I/p fuse block (behind left side of i/p)
Module (pcm)
Oxygen sens ground
Pcm ground
Pcm trans range a
Pcm trans range b
Pcm trans range c
Pcs hi
Pcs lo
Pnk
Powertrain control
Pressure control solenoid
Range mode selector
Red
Serial data
Stop lamp switch in
Tan
Tcc out
Tcc sol
Tcc/brake switch (on brake pedal support arm)
Test or start
Throttle position sensor (vin z) (right side of throttle body) (vin w) (top of plenum)
Tps in
Trans 2-3 shift sol
Trans oss hi
Trans temp sensor in
Trans- mission temp
Vehicle speed sensor (rear of transmission)
Vehicle speed sensor buffer (behind i/p, rh side of steering column
Vss in