Harness Routing Views. Chevrolet Astro

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 1999 🢒 Astro - 4WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Harness Routing Views

Figure 1:

Forward Lamp Harness, LH Side (Electrical)


(1)	LH Hi/Low Beam Headlamp (Sealed Beam)
(2)	C100
(3)	P100
(4)	C101
(5)	S135
(6)	C102
(7)	S106
(8)	S103
(9)	LH Front Park/Turn Lamp Connector
(10)	LH Front Park/Turn Lamp
(11)	S102
(12)	S105
(13)	LH Front Side Marker Lamp Connector
(14)	S104
(15)	LH Front Side Marker
(16)	Front End Discriminating Sensor Connector
(17)	Front End Discriminating Sensor
(18)	S107

Figure 2:

Forward Lamp Harness, RH Side


(1)	Window Washer Pump Rear
(2)	S101
(3)	Park/Turn Lamp RH Front
(4)	Park/Turn Lamp RH Front Connector
(5)	Side Marker Lamp RH Front Connector
(6)	Side Marker Lamp RH Front
(7)	S100
(8)	Hi/Lo Headlamp (Sealed Beam) RH
(9)	G100
(10)	Blower Motor Front
(11)	Windshield Washer Pump Front
(12)	Blower Motor Resistor and Relay Pack

Figure 3:

Engine Wiring, LH Side (Electrical)


(1)	A/C Compressor Clutch
(2)	A/C Compressor Clutch Connector
(3)	Throttle Position Sensor
(4)	Engine Coolant Temperature Gauge Sensor Connector
(5)	Idle Air Control Valve Motor
(6)	Throttle Position Sensor Connector
(7)	Fuel Injector #2 (Inside Plenum)
(8)	Idle Air Control Valve Motor Connector
(9)	Fuel Injector Connector (C104)
(10)	C103
(11)	Fuel Injector #4 (Inside Plenum)
(12)	G107
(13)	Distributor
(14)	Fuel Injector #6 (Inside Plenum)
(15)	Oil Pressure Switch and Sender Connector
(16)	S124
(17)	Camshaft Position Sensor (Inside Distributor)
(18)	Camshaft Position Sensor Connector
(19)	S126
(20)	Oil Pressure Switch and Sender
(21)	Knock Sensor
(22)	Knock Sensor Connector
(23)	G106
(24)	Fuel Injector #5 (Inside Plenum)
(25)	Engine Coolant Temperature Gauge Sensor
(26)	Fuel Injector #3 (Inside Plenum)
(27)	Fuel Injector #1 (Inside Plenum)
(28)	A/C High Pressure Cut-Off Switch
(29)	A/C Compressor

Figure 4:

Engine Wiring, RH Side


(1)	S123
(2)	Evaporative Emission Canister Purge Solenoid Valve Connector
(3)	Ignition Coil Connector
(4)	S122
(5)	Ignition Control Module
(6)	S120
(7)	Distributor Ignition Control Module Connector
(8)	Generator
(9)	Generator Connector
(10)	Ignition Coil
(11)	Map Sensor Connector
(12)	Map Sensor
(13)	Evaporative Emission Canister Purge Solenoid Valve

Figure 5:

Vehicle Control Module Wiring


(1)	Vehicle Control Module (VCM)
(2)	S153
(3)	S151
(4)	S152
(5)	(VCM) Blue 32-Way Connector (C1)
(6)	(VCM) Red 32-Way Connector (C2)
(7)	(VCM) Black 32-Way Connector (C4)
(8)	(VCM) Clear 32-Way Connector (C3)

Figure 6:

Bulkhead/Underhood Fuse-Relay Center Wiring


(1)	S111
(2)	S113
(3)	S114
(4)	S110
(5)	S112
(6)	S109
(7)	S108
(8)	S115

Figure 7:

Engine/Center of Front Dash Wiring (Electrical)


(1)	Cruise Control Module
(2)	Intake Manifold Air Temperature Sensor Connector
(3)	Wiper Motor Module Front
(4)	Intake Manifold Air Temperature Sensor
(5)	A/C Low Pressure Cut-Off Switch
(6)	A/C Low Pressure Cut-Off Switch Connector
(7)	Heater and A/C Control Valve Solenoid
(8)	Heater and A/C Control Valve Solenoid Connector
(9)	Mass Air Flow Sensor
(10)	Mass Air Flow Sensor Connector
(11)	Mass Air Flow Sensor Connector
(12)	Mass Air Flow Sensor
(13)	Intake Manifold Air Temperature Sensor
(14)	Intake Manifold Air Temperature Sensor Connector
(15)	Blower Motor Front

Figure 8:

Front of Dash Wiring, LH Side (Electrical)


(1)	S130
(2)	S135
(3)	C102
(4)	C105
(5)	G110

Figure 9:

Instrument Cluster Wiring


(1)	S217
(2)	S216
(3)	S215
(4)	Headlamp and Panel Dimmer Switch
(5)	S214
(6)	S213
(7)	S211
(8)	S207
(9)	Daytime Running Lamps Control Module
(10)	Daytime Running Lamps Control Module Connector
(11)	S212
(12)	S218
(13)	S219
(14)	S220
(15)	S221
(16)	S222
(17)	Ashtray Lamp
(18)	Radio Connectors
(19)	Remote Control Door Lock Receiver
(20)	Remote Control Door Lock Receiver Connector

Figure 10:

IP Wiring, RH Side (Electrical)


(1)	S232
(2)	S231
(3)	S230
(4)	S241
(5)	S229
(6)	S223
(7)	S224
(8)	S227
(9)	S228
(10)	Temperature Control Motor Connector
(11)	Temperature Control Motor

Figure 11:

IP Fuse Block/Convenience Center Wiring (Electrical)


(1)	C212
(2)	Audio Alarm Module
(3)	Convenience Center
(4)	Turn/Hazard Flasher Module
(5)	Horn Relay
(6)	DRL Relay
(7)	IP Fuse Block
(8)	C213

Figure 12:

Convenience Center Wiring


(1)	S210
(2)	S209
(3)	S206
(4)	S238
(5)	S205
(6)	S200
(7)	S201
(8)	S202
(9)	C210

Figure 13:

Left Front Interior Wiring


(1)	C200
(2)	S240
(3)	S200
(4)	C223
(5)	C202
(6)	Inflatable Restraint IP Module
(7)	Passlock Module
(8)	Front Auxiliary Power Outlet #1
(9)	Front Auxiliary Power Outlet #2
(10)	Cigar Lighter Connector
(11)	S234
(12)	Engine Cover Ground
(13)	Inflatable Restraint Sensing Diagnostic Module
(14)	Inflatable Restraint Sensing Diagnostic Module Connector
(15)	C333
(16)	S242
(17)	C300
(18)	S300
(19)	S325
(20)	CHMSL Resistor
(21)	S326
(22)	S324
(23)	S327
(24)	Park Brake Warning Switch
(25)	S303
(26)	S304
(27)	S246
(28)	S305
(29)	S306

Figure 14:

Interior Lamp Module, DLC Wiring


(1)	C211
(2)	Interior Lamp Control Module
(3)	Data Link Connector (DLC)
(4)	S223
(5)	S208
(6)	C201

Figure 15:

Vanity Mirror Wiring


(1)	S237
(2)	Inside Rearview Mirror Connector
(3)	Vanity Lamp Connector
(4)	Vanity Lamp
(5)	S236
(6)	C230

Figure 16:

RH Kick Panel Wiring (Electrical)


(1)	Door Lock Relay
(2)	Door Lock Control Module
(3)	G200
(4)	RH Door Jamb Switch Connector
(5)	RH Door Jamb Switch
(6)	C205
(7)	C203
(8)	C204

Figure 17:

LH Kick Panel Wiring


(1)	G300
(2)	C301
(3)	C303
(4)	S300
(5)	LH Door Jamb Switch

Figure 18:

Front Door Wiring


(1)	S504 (LH), S601 (RH)
(2)	S600 (RH)
(3)	S506 (LH)
(4)	S605 (RH)
(5)	Front Power Window Switch Connector (C1)
(6)	Front Power Window Switch Connector (C2)
(7)	Power Door Lock Switch Connector
(8)	Front Door Lock Motor
(9)	Front Door Lock Motor Connector
(10)	S505 (LH), S603 (RH)
(11)	Speaker Connector
(12)	P500 (LH), P600 (RH)
(13)	Front Power Window Motor
(14)	Tweeter Connector
(15)	S501 (LH), S604 (RH)
(16)	Outside Rearview Mirror Connector
(17)	S500 (LH)
(18)	S502 (LH)
(19)	S602 (RH)
(20)	S503 (LH)
(21)	Front Power Window Motor Connector

Figure 19:

Power Seats


(1)	Power Seat Harness
(2)	Power Seat Connector
(1)	Power Seat Harness
(3)	S332
(4)	S323

Figure 20:

Power Seat


(1)	Front Tilt Seat Motor
(2)	Seat Adjuster Switch
(3)	Forward/Rearward Seat Motor
(4)	C306 (LH), C307 (RH)
(5)	Rear Tilt Seat Motor

Figure 21:

LH Courtesy Lamp Wiring


(1)	D300
(2)	LH Courtesy Lamp

Figure 22:

Transmission Wiring (RWD)


(1)	Transmission
(2)	Adapter
(3)	Park/Neutral Position and Backup Lamp Switch 4-Way Connector
(4)	Park/Neutral Position and Backup Lamp Switch 7-Way Connector
(5)	Park/Neutral Position and Backup Lamp Switch
(6)	S333
(7)	Transmission Connector
(8)	Vehicle Speed Sensor Shield (Taped)
(9)	Vehicle Speed Sensor Connector
(10)	Vehicle Speed Sensor

Figure 23:

A4WD Transfer Case Locator View


(1)	C311 (Engine Harness to VSS Extension Harness)
(2)	Transfer Case Encoder Motor Connector
(3)	Transfer Case Rear Vehicle Speed Sensor
(4)	Vehicle Speed Sensor (VSS) (Input to VCM)
(5)	Transfer Case Front Vehicle Speed Sensor

Figure 24:

Undercarriage Wiring


(1)	Electronic Brake Control Module (EBCM) Connector (C3)
(2)	Brake Pressure Warning Switch
(3)	EBCM Connector (C2)
(4)	EBCM Connector (C1)
(5)	S126
(6)	S129
(7)	S127
(8)	G302
(9)	Fuel Pump and Level Sender Connector
(10)	Evaporative Emission Canister Vent Valve

Figure 25:

LH B Pillar Harness


(1)	S307
(2)	S308
(3)	S315
(4)	S322

Figure 26:

Left Rear Body Harness (Electrical)


(1)	Rear A/C Blower Motor
(2)	S313
(3)	S312
(4)	S311
(5)	S310
(6)	S309
(7)	S314
(8)	S315
(9)	S322
(10)	S316
(11)	Sub-Woofer Amplifier
(12)	Sub-Woofer Amplifier connector
(13)	S318
(14)	S317
(15)	G404

Figure 27:

Right Rear Body Wiring


(1)	S334
(2)	S335
(3)	Liftgate Lock/Unlock Relay
(4)	Liftgate Lock/Unlock Relay Connector

Figure 28:

RH D Pillar Wiring


(1)	S400
(2)	Rear Door Lock Motor
(3)	P401
(4)	Trailer Harness (Taped Wires)
(5)	S403
(6)	S402
(7)	S401
(8)	G401
(9)	Right Rear Speaker
(10)	Door Jamb Switch Rear
(11)	Door Jamb Switch Rear Connector

Figure 29:

LH D Pillar Wiring


(1)	S321
(2)	S320
(3)	Left Rear Speaker
(4)	S319
(5)	LH Rear Door Speaker (Base Radio) Left Rear Sub-Woofer (Premium Radio)
(6)	P400
(7)	G400
(8)	S400
(9)	C401

Figure 30:

RH D Pillar Wiring (Electrical)


(1)	G401
(2)	G403
(3)	S407

Figure 31:

Liftgate Strut Switch Wiring


(1)	LH Liftgate Strut Switch
(2)	LH Liftgate Strut Switch Connector
(3)	Liftgate Lock/Unlock Relay
(4)	S334
(5)	S335