Harness Routing Views. Chevrolet S10 Pickup

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 1999 🢒 S10 Pickup - 2WD 🢒 Body and Accessories 🢒 Cellular Communication 🢒 Harness Routing Views

Figure 1:

Radiator Support, Inside RH


(1)	Radiator Support
(2)	Forward Lamps Harness
(3)	Splice Pack SP101
(4)	Ground G112

Figure 2:

Battery MegaFuse and Air Injection (AIR) Jumper Harness


(1)	Radiator Support
(2)	AIR Jumper Harness
(3)	Battery MegaFuse
(4)	Fuse Holder
(5)	G100
(6)	G112
(7)	Battery Positive Cable

Figure 3:

Air Injection (AIR) Fuse Block


(1)	C117
(2)	Splice S105
(3)	AIR Fuse Block
(4)	AIR Jumper Harness

Figure 4:

Engine Compartment Details


(1)	Radiator Support, LH
(2)	Fender, RF
(3)	C120 (2.2L Engine)
(4)	C101
(5)	G111

Figure 5:

Inline Connector C106


(1)	Fender, RF
(2)	C106
(3)	Horn, LH
(4)	Underhood Fuse Block Connector C4

Figure 6:

A/C Accumulator (4.3L)


(1)	Engine Harness, VCM to A/C Accumulator
(2)	A/C Accumulator
(3)	C100

Figure 7:

Vehicle Control Module (VCM) 4.3 L


(1)	Vehicle Control Module (VCM)
(2)	Vehicle Control Module (VCM) Connector C3
(3)	Vehicle Control Module (VCM) Connector C1
(4)	C101
(5)	S106
(6)	A/C Compressor Cycling Switch
(7)	Vehicle Control Module (VCM) Connector C2
(8)	Vehicle Control Module (VCM) Connector C4

Figure 8:

Engine, LF (2.2 L)


(1)	Idle Air Control (IAC) Valve
(2)	Throttle Position (TP) Sensor
(3)	Exhaust Gas Recirculation (EGR) Valve
(4)	Underhood Fuse Block Connector C2
(5)	Engine Coolant Temperature (ECT) Sensor
(6)	A/C Compressor Clutch Diode, S103 and S104
(7)	Manifold Absolute Pressure (MAP) Sensor

Figure 9:

Engine, LR (2.2L)


(1)	Generator
(2)	G102 and G103
(3)	Engine Oil Pressure Gauge Sensor
(4)	Evaporative (EVAP) Emissions Canister Purge Valve
(5)	Ignition Control Module (ICM) Connector C1 (w/o Coil)
(6)	Ignition Control Module (ICM) Connector C2 (w/o Coil)
(7)	G105
(8)	S152
(9)	C111
(10)	S106
(11)	S129

Figure 10:

Engine, RF (4.3L)


(1)	Ignition Coil and Assembly
(2)	Exhaust Gas Recirculation (EGR) Valve
(3)	Generator Connector
(4)	Crankshaft Position (CKP) Sensor
(5)	Starter
(6)	Starter Solenoid
(7)	S100
(8)	Ignition Control Module (ICM)
(9)	Ignition Coil

Figure 11:

Engine, LR (4.3L)


(1)	A/C Compressor Clutch Diode, S103, and S104
(2)	Throttle Position (TP) Sensor
(3)	Idle Air Control (IAC) Valve
(4)	Distributor
(5)	Knock Sensor (KS)
(6)	Engine Coolant Temperature (ECT) Sensor
(7)	Underhood Fuse Block Connector C2
(8)	A/C Compressor High Pressure Switch
(9)	A/C Compressor

Figure 12:

Heated Oxygen Sensor (HO2S) Extension Harness (4.3L)


(1)	C100
(2)	S151
(3)	S150
(4)	C125
(5)	C126

Figure 13:

Body Wiring Harness, Engine Compartment


(1)	Blower Motor Relay Connector
(2)	Body Harness
(3)	Windshield Wiper Motor Connector
(4)	G117
(5)	P100
(6)	Cruise Control Module (CCM) Connector
(7)	Underhood Lamp Connector
(8)	Front Drive Axle Clutch Solenoid Connector
(9)	S138
(10)	Blower Motor Resistor Connector
(11)	Vehicle Control Module (VCM), Connector C4
(12)	Blower Motor Connector (C42/C60), Blower Motor Control Module (C68)
(13)	C101 (2.2L)
(14)	C101 (4.3L)
(15)	S121
(16)	S113
(17)	S118

Figure 14:

Manual Transmission, LH (4.3L)


(1)	C105
(2)	C104
(3)	S140
(4)	Vehicle Speed Sensor (2WD)
(5)	Backup Lamp Switch
(6)	Heated Oxygen Sensor (HO2S) LF (Bank 1, Sensor 1)

Figure 15:

Automatic Transmission (2.2L)


(1)	Vehicle Speed Sensor
(2)	C175
(3)	S140
(4)	C117

Figure 16:

Transmission Range Switch (w/ A/T) 4.3L Shown, 2.2L Similar


(1)	C104
(2)	Transmission Range Switch Connector C2
(3)	Transmission Range Switch Connector C1
(4)	C105
(5)	Heated Oxygen Sensor, LF (HO2S, Bank 1, Sensor 1)

Figure 17:

Automatic Transmission, RH (4.3 L)


(1)	C175
(2)	Vehicle Speed Sensor
(3)	S140

Figure 18:

Transfer Case


(1)	C116
(2)	Transfer Case Connector C1
(3)	Transfer Case, RR
(4)	Vehicle Speed Sensor
(5)	S134
(6)	Transfer Case Speed Sensor

Figure 19:

Instrument Panel, LF


(1)	IP Bulkhead
(2)	C211
(3)	C214
(4)	Body Control Module (BCM) Connector C1
(5)	Body Control Module (BCM) Connector C2
(6)	IP Vacuum Harness Connector
(7)	Splice Pack SP202
(8)	Body Relay Block
(9)	Park Brake Warning Switch
(10)	Splice Pack SP201
(11)	C209
(12)	C217
(13)	G200 and G202
(14)	G201

Figure 20:

Instrument Panel Details, RH


(1)	Heater Controls
(2)	C200
(3)	C203
(4)	Instrument Panel (IP)
(5)	Body Control Module (BCM)
(6)	Body Control Module (BCM), Connector C1
(7)	Body Control Module (BCM), Connector C2
(8)	Body Control Module (BCM), Connector C3

Figure 21:

Instrument Panel, RF


(1)	C102
(2)	C203
(3)	Instrument Panel (IP)
(4)	Recirculation Door Motor
(5)	Turn Signal Lamp 2/4 Flasher (Pickup) or Turn Signal Lamp 3/6 Flasher (Utility)
(6)	C601
(7)	C600
(8)	Transfer Case Shift Control Module Connector
(9)	Splice Pack SP200
(10)	Splice Pack SP204
(11)	G203, G204 and G205
(12)	HVAC Solenoid Assembly Connector (w/ Auto A/C)
(13)	Air Temperature Valve Sensor and Motor Connector

Figure 22:

IP Wiring Harness


(1)	Supplemental Inflatable Restraint IP Module
(2)	C201
(3)	IP Compartment Lamp
(4)	Door Jamb Switch, RH Front

Figure 23:

Instrument Panel, LH (RH Similar)


(1)	Headlamp Switch Connector
(2)	Fog Lamp Switch Connector
(3)	Headlamp Switch
(4)	Door Jamb Switch, LH Front
(5)	IP Fuse Block
(6)	S204
(7)	C217
(8)	Courtesy Lamp, LH Console
(9)	Body Relay Block
(10)	S223
(11)	IP Speaker, LH

Figure 24:

IP Wiring Harness Composite View (with Auto A/C)


(1)	Supplemental Inflatable Restraint IP Module Switch Connector
(2)	Radio Connector
(3)	Sun Load Temperature Sensor
(4)	Transfer Case Select Switch
(5)	Electronic Climate Control (EEC) Module
(6)	Instrument Cluster Connector
(7)	Instrument Panel (IP)
(8)	Rear Wiper/Washer Switch and Endgate/Liftgate Window Release Switch
(9)	Courtesy Lamp, LF Console
(10)	S240
(11)	Body Control Module (BCM) Connector C3
(12)	C224
(13)	S275
(14)	S205
(15)	S283
(16)	S208
(17)	Splice Pack SP203
(18)	S272
(19)	S274
(20)	S273
(21)	S280
(22)	S223
(23)	Courtesy Lamp, RF Console
(24)	C102
(25)	C203
(26)	Door Jamb Switch, RH Front
(27)	IP Compartment Lamp
(28)	Ambient Light Sensor
(29)	IP Speaker, RH

Figure 25:

IP Wiring Harness Composite View (without Auto A/C)


(1)	S217
(2)	S215
(3)	Supplemental Inflatable Restraint IP Module Switch Connector
(4)	AM/FM Stereo Radio Connector
(5)	Transfer Case Select Switch Connector
(6)	S275
(7)	S273
(8)	Instrument Cluster Connector
(9)	Instrument Panel (IP)
(10)	Supplemental Inflatable Restraint Defeat Switch and Indicator Connector (Pickup) or Rear Window Wiper/Washer Switch and Endgate/Liftgate Window Release Switch Connector (Utility)
(11)	Console Courtesy Lamp, LF
(12)	S240
(13)	Body Control Module (BCM) Connector C3
(14)	C224
(15)	Splice Pack SP203
(16)	S205
(17)	S283
(18)	S282
(19)	S272
(20)	S274
(21)	S208
(22)	C223
(23)	Console Courtesy Lamp, RF
(24)	C102
(25)	C203
(26)	Front Side Door Jamb Switch, RF
(27)	IP Compartment Lamp Connector
(28)	Speaker, RF

Figure 26:

Steering Column Components


(1)	Shift Lever Assembly
(2)	Upper Shroud
(3)	Supplemental Inflatable Restraint Steering Wheel Module Coil
(4)	C214
(5)	Multifuction Switch
(6)	Park Lock Solenoid Connector
(7)	Brake Transmission Shift Interlock (BTSI) Solenoid
(8)	C211
(9)	Transmission Shift Lever
(10)	Passlock™ Sensor Connector
(11)	Ignition Switch and Ignition Key Alarm Switch

Figure 27:

Auxiliary Power Tray


(1)	Splice S268
(2)	Auxiliary Power Outlet Harness
(3)	C223
(4)	IP Insulator
(5)	Auxiliary Power Tray
(6)	Auxiliary Power Outlet, RH
(7)	Auxiliary Power Outlet, LH

Figure 28:

Dome Lamp Harness (Regular Cab Pickup)


(1)	S302
(2)	Dome Lamp Harness
(3)	Dome and High Mounted Stop Lamp
(4)	S300
(5)	Sunshade Mirror Lamp, LH
(6)	C209
(7)	Inside Rear View Mirror
(8)	Sunshade Mirror Lamp, RH

Figure 29:

Sunroof (Utility)


(1)	Driver Information Display Module, Connector C2
(2)	Sunroof Motor and Drive
(3)	Sunroof Module, Connector C2
(4)	Sunroof Module, Connector C1
(5)	S332
(6)	C300
(7)	Sunroof Module
(8)	S390
(9)	Driver Information Display Module, Connector C1
(10)	Driver Information Display Module

Figure 30:

Dome Lamp Harness w/o Driver Information Display Module (Utility)


(1)	Dome Lamp
(2)	S300
(3)	S302
(4)	Dome Lamp Harness
(5)	C209
(6)	Sunshade Mirror Lamp, LH
(7)	Inside Rear View Mirror
(8)	Sunshade Mirror Lamp, RH

Figure 31:

Driver Information Display Module w/ Sunroof


(1)	Driver Information Display Module, Connector C1
(1)	Driver Information Display Module, Connector C1
(2)	C301
(2)	C301
(3)	Driver Information Display Module
(4)	S310
(5)	S302
(6)	Inside Air Temperature Sensor (w/ Auto A/C)
(7)	S332
(7)	S332
(8)	S390
(8)	S390

Figure 32:

Floor Panel, Utility


(1)	S309
(2)	C317
(3)	Seat Belt Switch
(4)	Supplemental Inflatable Restraint Sensing and Diagnostic Module
(5)	C315

Figure 33:

Floor Shifter Harness Connections


(1)	Automatic Transmission Controller and Connector
(2)	Automatic Transmission Preference Switch Connector
(3)	Splice S336
(4)	Floor Shifter
(5)	Automatic Transmission Indicator Lamp
(6)	Splice S335

Figure 34:

Body Wiring to Left Front Seat


(1)	C317
(2)	Seat

Figure 35:

Doors (RF Shown, LF Similar)


(1)	Door Lock Cylinder Switch Connector, RH
(2)	Door Handle Switch Connector, RH
(3)	Door Lock Actuator Connector, RH
(4)	Door Lock Actuator, RH
(5)	Side Window Regulator Motor and Connector, RH
(6)	Splice S502 (LH)
(7)	Splice S601 (RH), S501 (LH)
(8)	Door Speaker Connector, RH
(9)	C601 (RH), C500 (LH)
(10)	C501 (LH)
(11)	P600 (RH), P500 (LH)
(12)	Outside Rear View Mirror Connector, RH

Figure 36:

Outside Rear View Mirror


(1)	P501 (LH) or P601 (RH)
(2)	Outside Rear View Mirror, LH (RH Opposite)
(3)	C504 (LH) or C603 (RH)

Figure 37:

Rear Door Wiring Harness (RH Shown, LH Opposite)


(1)	Door
(2)	Door Lock Actuator, RH Rear
(3)	Side Window Switch, RH Rear
(4)	Door Speaker, RH Rear
(5)	Side Window Regulator Motor, RH Rear
(6)	C404 (RH) or C406 (LH)
(7)	C405 (RH) or C407 (LH)
(8)	P800 (RH) or P700 (LH)
(9)	Side Window Switch, RH Rear

Figure 38:

Rear Door Details (RH Shown, LH Opposite) - 2 & 4 Door Utility


(1)	Door Opening Frame (4-Door)
(2)	S307 (RH) or S306 (LH) (4-Door)
(3)	S305 (RH) or S308 (LH) (4-Door)
(4)	Body Side Panel, RH (2-Door)
(5)	Radio Rear Speaker, RH (2-Door)

Figure 39:

Body Wiring Views


(1)	C471
(2)	C420
(3)	Vacuum Hoses
(4)	Load Leveling Pump
(5)	Vehicle Communications Unit

Figure 40:

Body Wiring to Body Side Trim Panel


(1)	Load Leveling Air Direction Valve
(2)	C471
(3)	Body Side Trim
(4)	S470
(5)	Load Leveling Timer Relay
(6)	Load Leveling Inflator Switch
(7)	Auxiliary Power Outlet

Figure 41:

Body Opening Frame, Rear


(1)	High Mounted Stop Lamp Resistor, S404 and S405
(2)	C403
(3)	G450
(4)	S427
(5)	G420
(6)	C402

Figure 42:

Rear Roof (Utility)


(1)	High Mount Stop Lamp (w/Endgate)
(2)	Cargo Lamp (w/Endgate)
(3)	High Mount Stop Lamp (w/Liftgate)
(4)	Cargo Lamp (w/Liftgate)
(5)	P904 (w/Endgate)

Figure 43:

Rear Lamps Connection (Utility LH Side Shown, RH Side Similar)


(1)	C403 (LH) and C402 (RH)
(2)	S417 (LH) and S418 (RH)
(3)	S415 (LH) and S416 (RH)
(4)	S419 (LH) and S420 (RH)
(5)	P402 (LH) and P403 (RH)
(6)	Park and Turn Signal Lamps, LH Rear (RH Similar) Upper and Lower
(7)	Backup Lamp, LH (RH Similar)

Figure 44:

Rear Lamps (Pickup)


(1)	Side Marker Lamp, RH Rear
(2)	Park and Turn Signal Lamp, RH Rear
(3)	Backup Lamp, RH
(4)	Splice Pack SP400
(5)	Backup Lamp, LH
(6)	Side Marker Lamp, LH Rear
(7)	Park and Turn Signal Lamp, LH Rear

Figure 45:

Endgate Connectors


(1)	Body Floor
(2)	C411, C412 and C413
(3)	Endgate
(4)	Window Washer Tube Check Valve, Rear

Figure 46:

Rear Framerail-Pickup


(1)	Framerail, LR
(2)	C401
(3)	Framerail, RR
(4)	G422
(5)	Splice Pack SP401
(6)	G402
(7)	G475
(8)	Splice Pack SP402

Figure 47:

Rear Frame Location View, 4-Door Utility


(1)	Trailer Wiring Provision
(2)	Splice Pack SP423
(3)	Evaporative (EVAP) Emissions Canister Vent Valve
(4)	C430
(5)	Fuel Filler Neck Ground Strap
(6)	G402

Figure 48:

Liftgate LH (Utility)


(1)	C426 LH (C428 RH)
(2)	C427 LH (C429 RH)
(3)	P901
(4)	C432 LH (C433 RH)
(5)	Liftgate Switch Connector
(6)	Liftgate Lock Actuator Connector
(7)	Liftgate Window Release Actuator Connector
(8)	Liftgate Window Release Actuator

Figure 49:

Liftgate Location View RH (Utility)


(1)	C433
(2)	P902
(3)	C428
(4)	C429
(5)	Rear Window Washer Tube Check Valve Connector
(6)	Lift Gate Window Release Actuator Connector
(7)	Rear Window Wiper Cutout And Liftglass Ajar Jamb Switch
(8)	Rear Window Washer Nozzle
(9)	Liftgate Ajar Jamb Switch
(10)	Rear Window Wiper Motor Controller