Harness Routing Views. Isuzu S/T Isuzu

For 1990-2009 cars only

Makes 🢒 Isuzu 🢒 1999 🢒 S/T Isuzu - 2WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 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 Restraint System (SRS) 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 (without Auto A/C)


(1)	S217
(2)	S215
(3)	Supplemental Restraint System (SRS) 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 Restraint System (SRS) Defeat Switch and Indicator Connector (Pickup) or Rear Window Wiper/Washer Switch and Endgate/Liftgate Window Release Switch Connector (Utility)
(11)	Console Courtesy Lamp, RF
(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 25:

Steering Column


(1)	Shift Lever Assembly
(2)	Upper Shroud
(3)	Supplemental Restraint System (SRS) Steering Wheel Module Coil
(4)	C214
(5)	Multifunction 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 26:

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 27:

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 28:

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 29:

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 30:

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 31:

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