Harness Routing Views. Chevrolet Astro

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2003 🢒 Astro - 2WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Harness Routing Views

Figure 1:

Forward Lamps Harness, Left Side


(1)	Headlamp - LH - Sealed
(2)	C100
(3)	P100
(4)	C104
(5)	C109
(6)	C102
(7)	S132
(8)	S131
(9)	S103
(10)	S102
(11)	S105
(12)	S104
(13)	Marker Lamp - LF Connector
(14)	Marker Lamp - LF
(15)	Park/Turn Signal Lamp - LF
(16)	Park/Turn Signal Lamp - LF Connector
(17)	Inflatable Restraint Front End Discriminating Sensor Connector
(18)	Inflatable Restraint Front End Discriminating Sensor

Figure 2:

Forward Lamp Harness, Right Side


(1)	Rear Window Washer Fluid Pump
(2)	S101
(3)	Park/Turn Signal Lamp - RF
(4)	Park/Turn Signal Lamp - RF Connector
(5)	Marker Lamp - RF Connector
(6)	Marker Lamp - RF
(7)	S106
(8)	S100
(9)	Headlamp - Right - Sealed
(10)	G100
(11)	Blower Motor
(12)	Windshield Washer Fluid Pump
(13)	Blower Motor Resistor Assembly

Figure 3:

Engine Component Location View - Rear


(1)	A/C Compressor Clutch Connector
(2)	Throttle Position (TP) Sensor Connector
(3)	Idle Air Control (IAC) Valve Connector
(4)	Central Sequential Fuel Injection (Central SFI) Connector
(5)	Engine Oil Pressure (EOP) Sensor Connector
(6)	S126
(7)	Camshaft Position (CMP) Sensor Connector
(8)	Knock Sensor (KS) Connector
(9)	S134
(10)	G106, And G107
(11)	S124
(12)	Engine Coolant Temperature (ECT) Sensor Connector
(13)	A/C High Pressure Switch Connector

Figure 4:

Engine Wiring, Right Side


(1)	S123
(2)	Evaporative Emission (EVAP) Canister Purge Solenoid Connector
(3)	Ignition Coil Connector
(4)	Ignition Control Module (ICM)
(5)	S154
(6)	S119
(7)	Ignition Control Module (ICM) Connector
(8)	Generator
(9)	Generator Connector
(10)	Ignition Coil
(11)	Manifold Absolute Pressure (MAP) Sensor Connector
(12)	Manifold Absolute Pressure (MAP) Sensor
(13)	Evaporative Emission (EVAP) Canister Purge Solenoid

Figure 5:

Undercarriage Wiring


(1)	Electronic Brake Control Module (EBCM)
(2)	Electronic Brake Control Module (EBCM) Connector C2
(3)	Electronic Brake Control Module (EBCM) Connector C1
(4)	C314
(5)	S126
(6)	S127
(7)	G302
(8)	C310
(9)	Evaporative Emission (EVAP) Canister Vent Solenoid

Figure 6:

Left B Pillar Harness


(1)	S307
(2)	S301
(3)	Daytime Running Lamps (DRL) Diode
(4)	Left "B" Pillar
(5)	Daytime Running Lamps (DRL) Diode Connector
(6)	S315
(7)	S322

Figure 7:

Powertrain Control Module (PCM) Location View


(1)	Engine Harness
(2)	Battery
(3)	S154
(4)	Powertrain Control Module (PCM) Connector C1
(5)	Powertrain Control Module (PCM) Connector C2
(6)	Powertrain Control Module (PCM)
(7)	Fuel Pump Prime

Figure 8:

Bulkhead/Fuse Block - Underhood Wiring


(1)	S115
(2)	S111
(3)	S110
(4)	P100
(5)	S112
(6)	C104
(7)	C100
(8)	S133
(9)	S109
(10)	S108
(11)	Fuse Block - Underhood
(11)	Fuse Block - Underhood

Figure 9:

Engine/Center of Front Dash Wiring


(1)	Cruise Control Module (CCM)
(2)	Intake Air Temperature (IAT) Sensor Connector
(3)	Windshield Wiper Motor and Module
(4)	Intake Air Temperature (IAT) Sensor
(5)	A/C Low Pressure Switch
(6)	A/C Low Pressure Switch Connector
(7)	Coolant Bypass Valve Solenoid
(8)	Coolant Bypass Valve Solenoid Connector
(9)	Mass Air Flow (MAF)Sensor
(10)	Mass Air Flow (MAF) Sensor Connector
(11)	Mass Air Flow (MAF) Sensor Connector
(12)	Mass Air Flow (MAF) Sensor
(13)	Intake Air Temperature (IAT) Sensor
(14)	Intake Air Temperature (IAT) Sensor Connector
(15)	Blower Motor
(16)	S116

Figure 10:

Front of Dash Wiring, Left Side (Electrical)


(1)	S130
(2)	C102
(3)	C109
(4)	G110

Figure 11:

Instrument Cluster Wiring


(1)	Body Control Module (BCM)
(1)	Body Control Module (BCM)
(2)	Body Control Module (BCM) Connectors
(3)	HVAC Control Module
(4)	S219
(5)	S217
(6)	S211
(7)	S257
(8)	S330
(9)	Headlamp and Panel Dimmer Switch
(10)	S256
(11)	Headlamp and Panel Dimmer Switch Connector
(12)	Remote Control Door Lock Receiver (RCDLR) Connector
(13)	S210
(14)	S254
(15)	S250
(16)	S212
(17)	S219
(18)	Instrument Panel Cluster (IPC) Connector
(19)	S258
(20)	S259
(21)	S255
(22)	Radio Connectors

Figure 12:

IP Wiring, Right Side


(1)	S241
(2)	S229
(3)	S223
(4)	S224
(5)	S259
(6)	S227
(7)	S228
(8)	Air Temperature Actuator Connector
(9)	Air Temperature Actuator

Figure 13:

Fuse Block - I/P Location View


(1)	Convenience Center
(2)	Turn Signal/Hazard Flasher Module
(3)	Horn Relay
(4)	Fuse Block - I/P
(5)	C213
(6)	C212

Figure 14:

Convenience Center Wiring


(1)	S238
(2)	S206
(3)	S205
(4)	S204
(5)	S203

Figure 15:

Left Front Interior Wiring


(1)	C200
(2)	S240
(3)	S200
(4)	S201
(5)	C223
(6)	C202
(7)	Inflatable Restraint I/P Module
(8)	Auxiliary Power Outlet Front #1 Connector
(9)	Auxiliary Power Outlet Front #2 Connector
(10)	Cigar Lighter Connector
(11)	S234
(12)	Engine Cover Ground (G201)
(13)	Inflatable Restraint Sensing and Diagnostic Module
(14)	Inflatable Restraint Sensing and Diagnostic Module Connector
(15)	C333
(16)	S242
(17)	C300
(18)	S325
(19)	Center High Mounted Stop Lamp (CHMSL) Resistor
(20)	S326
(21)	S324
(22)	S327
(23)	Park Brake Switch
(24)	S303
(25)	S330
(26)	S246
(27)	S305
(28)	S246

Figure 16:

Splice Pack, Relay Block, DLC Wiring


(1)	C201
(2)	Inflatable Restraint Steering Wheel Module Coil Connector
(3)	Data Link Connector (DLC)
(4)	Relay Block #1
(5)	S253
(6)	S220
(7)	S252
(8)	S251
(9)	S250
(10)	SP261 Splice Pack

Figure 17:

Vanity Mirror Wiring


(1)	S237
(2)	Vanity Mirror Lamp Connectors
(3)	Vanity Mirror Lamp - Right
(4)	Convenience Center Connector C6
(5)	C200
(6)	S236

Figure 18:

I/P Wiring To Front Passenger Door


(1)	Door Lock Relay
(2)	G200
(3)	Door Jamb Switch - Front Passenger
(4)	C205
(5)	C203
(6)	S232

Figure 19:

Left Kick Panel Wiring


(1)	G300
(2)	C301
(3)	C303
(4)	Door Jamb Switch - Driver

Figure 20:

Front Door Wiring (Front Passenger Shown, Driver Opposite)


(1)	S500 - Driver, S602 - Front Passenger
(2)	S503 - Driver, S601 - Front Passenger
(3)	Speaker - RF Door Tweeter Connector
(4)	S506 - Driver, S600 - Front Passenger
(5)	Outside Rearview Mirror Switch Connector- Driver
(6)	Window Switch Front Passenger Connector C1/ Window Master Switch - Driver Connector C2
(7)	Window Motor - Front Passenger Connector
(8)	Window Switch Front Passenger Connector C2/ Window Master Switch - Driver Connector C1
(9)	S502 - Driver, S603 - Front Passenger
(10)	Door Lock Actuator - Front Passenger
(11)	Door Lock Actuator - Front Passenger Connector
(12)	Door Lock Switch - Front Passenger Connector
(13)	Speaker - RF Door Connector
(14)	C301 - Driver, C205 - Front Passenger
(15)	P500 - Driver, P600 - Front Passenger
(16)	S501 - Driver, S605 - Front Passenger
(17)	Outside Rearview Mirror - Passenger Connector

Figure 21:

Seat - Driver


(1)	Seat Vertical Motor
(2)	Seat Adjuster Switch - Driver
(3)	Seat Horizontal Motor
(4)	C306
(5)	Seat Rear Vertical Motor

Figure 22:

Courtesy Lamp - Left Wiring


(1)	Daytime Running Lamps (DRL) Diode
(2)	S328
(3)	Courtesy Lamp - Left

Figure 23:

Transmission Wiring


(1)	Automatic Transmission
(2)	Adapter
(3)	Park/Neutral Position (PNP) Switch Connector C1
(4)	Park/Neutral Position (PNP) Switch Connector C2
(5)	Park/Neutral Position (PNP) Switch
(6)	C175
(7)	Vehicle Speed Sensor (VSS)
(8)	Vehicle Speed Sensor (VSS) Connector
(9)	S333
(10)	Vehicle Speed Sensor (VSS) Shield (Taped)

Figure 24:

A4WD Transfer Case Locator View


(1)	Propshaft Speed Sensor - Rear Connector
(2)	Transfer Case Encoder Motor Connector
(3)	Vehicle Speed Sensor (VSS) Connector
(4)	Propshaft Speed Sensor - Front Connector
(5)	Transfer Case
(6)	P301

Figure 25:

Body Harness -LR


(1)	Blower Motor - Auxiliary
(2)	S313
(3)	S312
(4)	S311
(5)	S310
(6)	S309
(7)	S314
(8)	S315
(9)	S322
(10)	S316
(11)	Audio Amplifier
(12)	Audio Amplifier Connector
(13)	S318
(14)	S317
(15)	G404

Figure 26:

Body Wiring -RR


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

Figure 27:

Right D Pillar Wiring


(1)	S400
(2)	Door Lock Actuator - Rear
(3)	P401
(4)	Trailer Harness (Taped Wires)
(5)	S403
(6)	S402, And S408
(7)	S401
(8)	G401
(9)	Speaker - RR

Figure 28:

Left D Pillar Wiring


(1)	S321
(2)	C401
(3)	S320
(4)	Speaker - LR
(5)	S319
(6)	Speaker - LR Door (Base Radio) Speaker - LR Subwoofer (Premium Radio)
(7)	P400
(8)	G400
(9)	S400

Figure 29:

Right D Pillar Wiring


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