Harness Routing Views. GMC Truck GMC K Sierra

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2000 🢒 GMC K Sierra - 4WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Harness Routing Views

Figure 1:

Engine Wiring Harness Junction Block


(1)	Engine Wiring Harness Junction Block Bracket
(2)	Inflatable Restraint Harness
(3)	Radiator Support
(4)	Inflatable Restraint Electrical Connector (IP) (C101)
(5)	Inflatable Restraint Electrical Connector (Sensor) (C101)
(6)	LH Battery Tray
(7)	Engine Wiring Harness Junction Block Bracket
(8)	Engine Wiring Harness Junction Block

Figure 2:

Inline Connectors Under the Engine Wiring Junction Block


(1)	Inline Connector 102 (C102)
(2)	Engine Wiring Junction Block Support/Mount
(3)	Inline Connector 152 (C152)
(4)	Inline Connector 100 (C100)

Figure 3:

Lower LR of the Engine Components (4.8L/5.3L/6.0L)


(1)	Ground 103 (G103)
(1)	Ground 103 (G103)
(2)	Engine Harness- H02S
(3)	HO2 Sensor connector- Bank 1, Sensor 1
(4)	Fuel Line Bracket
(5)	Ground 104 (G104)
(5)	Ground 104 (G104)
(6)	Oil Pressure Sensor Connector
(6)	Oil Pressure Sensor
(7)	Engine Ground Strap (G107)
(8)	TP 1 Battery Cable (G106)

Figure 4:

LH Rear View of Engine-4.3L


(1)	Oil Pressure Sensor Connector
(2)	Oil Pressure Sensor
(3)	Ground 104 (G104)
(4)	Engine Ground Strap (G107)
(5)	Engine 4.3L
(6)	Knock Sensor
(7)	Knock Sensor Connector
(8)	Distributor Connector
(9)	Distributor

Figure 5:

Right Side of the Engine Components (4.3L)


(1)	Coil - Ignition
(2)	Generator
(3)	Ignition Coil Driver
(4)	Generator Connector
(5)	RH Cylinder Head
(6)	Ground 103 (G103)
(7)	Map Sensor Connector
(8)	Map Sensor

Figure 6:

Instrument Panel Harness Routing View


(1)	Instrument Panel
(2)	Instrument Panel Cluster Connector
(3)	Sun Load Temperature Sensor
(4)	Radio Connectors
(5)	Daytime Running Lamps (DRL) Sensor
(6)	A/C Temperature Sensor
(7)	Passenger Inflatable Restraint Module Connector
(8)	Inflatable Restraint Module Switch Connector
(9)	Inline Connector C206 (HVAC Auto A/C)
(10)	Inline Connector C207 (RTD)
(11)	Speaker Connector
(12)	Compartment Lamp Connector
(13)	Instrument Panel Wiring Harness Junction Block
(14)	Inline Connector to RH Door Harness
(15)	Inline Connector to RH Body Harness (06 only)
(16)	Ash Tray Lamp Connector
(17)	HVAC Control Module Connectors
(18)	Cigarette Lighter Connector
(19)	Power Accessary Connectors
(20)	Inline Connector C352 (LH Body Harness Side)
(21)	Console Connector ( Y91 only)
(22)	Steering Column Connector
(23)	Inline Connector C307 (Console Extension Harness Side)
(24)	Body Control Module Connectors
(25)	Cargo/Fog Switch Connector
(26)	Headlamp Switch Connector
(27)	Steering Column (SIR) Connector
(28)	Fuse Block
(29)	Data Link Communication Connector
(30)	Inflatable Restraint Sensor Diagnostic Module Connector
(31)	Inline Connector C204
(32)	Inline Connector C200 (LH Door Harness)
(33)	LH Courtesy Lamp
(34)	Body Wiring Harness Junction Block
(35)	Splice Pack 203 (SP203)
(36)	Inline Connectors to Automatic Transfer Case (C151, C153)
(37)	Inline Connector C102 (I/P to Chassis Harness)
(38)	Inline Connector C103 (I/P to Forward Lamp Harness)
(39)	Engine Wiring Harness Junction Block
(40)	Instrument Panel Battery Feed Connectors
(41)	Trailer Power Feed Connector
(42)	Cruise Control/Throttle Actuator Connector
(43)	Under Hood Lamp Connector
(44)	LH Speaker Connector
(45)	Inline Connector C204 (I/P to LH Body Harness)
(46)	Under Hood Lamp Ground
(47)	I/P Harness to Plenum Ground
(48)	Windshield Wiper Module Connector

Figure 7:

Chassis Wiring Harness to Front Frame (25 Series 3/4 ton)


(1)	LF Shock Connector
(2)	LF Wheel Speed Sensor Connector (Chassis Harness Side)
(3)	LF Wheel Speed Sensor Connector
(4)	LF Electronic Position Sensor Connector (Chassis Harness Side)
(5)	LF Electronic Position Sensor Connector
(6)	Chassis Harness
(7)	RF Shock Connector
(8)	RF Wheel Speed Sensor Connector
(9)	RF Electronic Position Sensor Connector
(10)	Frame

Figure 8:

LH Front of Vehicle


(1)	Upper Radiator Support (Tie Bar)
(2)	LH Headlamp Assembly
(3)	LH High Beam Lamp Connector
(4)	LH Daytime Running Lamp Bulb
(5)	LH Daytime Running Lamp Socket
(6)	Windshield Washer Reservoir
(7)	LH Front Park/Turn Lamp Socket
(8)	LH Front Marker Socket
(9)	LH Front Marker Bulb
(10)	LH Front Park/Turn Lamp Bulb
(11)	Snowplow (Option) Connector C125
(12)	LH Low Beam Connector
(13)	LH Front Marker Lamp Lens (RH similar)

Figure 9:

OnStar® Component Locations


(1)	Cellular Antenna
(2)	OnStar® Microphone
(3)	Global Positioning System (GPS)
(4)	Body Wiring Junction Block
(5)	Vehicle Communication Unit
(6)	Keypad
(7)	Vehicle Interface Unit

Figure 10:

Instrument Cluster


(1)	Instrument Panel Cluster (IPC)
(2)	Inline Connector C202 M
(3)	Inline Connector C202 F
(4)	Instrument Cluster Electrical Connector
(5)	Instrument Panel Carrier
(6)	Instrument Panel

Figure 11:

Upper Left of the I/P Components


(1)	Splice Pack 203 (SP203)
(2)	Ground 203 (G203)
(3)	Dash
(4)	A-Pillar

Figure 12:

Lower Steering Column Connectors


(1)	Inline Connectors (C201A, C201B and C201C)
(2)	Inline Connector C201
(3)	Inflatable Restraint Harness
(4)	Inflatable Restraint Electrical Connector
(5)	Body Control Module (BCM) Bracket
(6)	Body Control Module (BCM) Harness
(7)	A/T Shift Lock Control Solenoid Connector
(8)	A/T Shift Lock Control Solenoid Electrical Connector
(9)	Lower Steering Column Shaft
(10)	Inflatable Restraint Steering Wheel Module Connector with Tether
(11)	Instrument Panel Bracket

Figure 13:

Center Console Wiring (2 of 2)


(1)	Front Floor Compartment
(2)	I/P Harness
(3)	Inline Connector 307 (Uplevel Utility), Inline 340 (Luxury Utility)
(4)	Inline Connector 307 (Uplevel Utility), Inline 340 (Luxury Utility)
(5)	Console Harness
(6)	Inline Connector 314 (Rear Console Harness Side)
(7)	Inline Connector 314 (LH body Harness Side)

Figure 14:

Behind the Center of the I/P


(1)	Instrument Panel
(2)	Radio Connectors
(3)	Console Extension Harness
(4)	Inline Connector 253 (IP Harness Side)
(5)	Inline Connector 253 (Console Extension Harness Side)
(6)	Compact Disc Player Connector
(7)	Front Floor Console Extension
(8)	Instrument Panel Harness
(9)	Radio

Figure 15:

HVAC Module Assembly (Connections)


(1)	Recirculation Door Motor Electrical Connector
(2)	Instrument Panel
(3)	Electrical Harness Connector
(4)	Ground 200 (G200)
(5)	Blower Motor Resistor/Relay Assembly
(6)	Blower Motor Resistor/Relay Electrical Connector
(7)	Harness Inline Connector (C296)
(8)	Temperature Door Motor Electrical Connector
(9)	Temperature Door Motor
(10)	Mode Door Motor

Figure 16:

Headliner Harness to Body Wiring Junction Block


(1)	"A" Pillar
(2)	Headliner Wiring Harness
(3)	Body Wiring Harness Junction Block
(4)	Headliner Harness Connector C-6

Figure 17:

Left Side Frame Rail -- Brake Components


(1)	Ground 302 (G302)
(2)	LH Body Mount
(3)	Ground Screw
(4)	Electronic Brake Control Module (EBCM)
(5)	Fuel Tank

Figure 18:

Left Kick Panel (1 of 2)


(1)	C200 (IP Harness Side)
(2)	C204
(3)	A-Pillar
(4)	C200 (Door Harness Side)

Figure 19:

Left Kick Panel (2 of 2)


(1)	LH Dash Panel Insulator
(2)	Door Wiring Harness -LH
(3)	Inline Connector C205 (Door Harness Side)
(4)	Inline Connector C205 (LH Body Wiring Harness Side)
(5)	Inline Connector C204 (LH Body Wiring Harness Side)
(6)	Body Wiring Harness-LH
(7)	Inline Connector C204 (I/P Harness Side)
(8)	Body Harness-LH

Figure 20:

Right Kick Panel (2 of 2)


(1)	Side Cowl Panel
(2)	C299 (Door Harness Side) -- Uplevel
(3)	C299 (I/P Harness Side) -- Uplevel
(4)	C208 (Right Body Harness Side)
(5)	C208 ( I/P Harness Side)

Figure 21:

LH Rear of Passenger Compartment


(1)	LH Side Inner Body Panel
(2)	Panel Access Hole
(3)	LH Rear Speaker Connector (Harness Side)
(4)	LH Rear Speaker Connector (Speaker Side)
(5)	Body Wiring Harness
(6)	Body Wiring Harness
(7)	Rear Glass (Deffoger Grid Not Shown)
(8)	Rear Defogger Connector (Harness Side)
(9)	Rear Defogger Connector (Window Side)

Figure 22:

Rear HVAC Harness


(1)	Inner Body Side Panel
(2)	Splice Pack 410 (SP410)
(3)	Splice Pack 410A (SP410A)
(4)	Blower Motor Connector
(5)	Auxiliary HVAC Module
(6)	Heater Temperature Sensor
(7)	Mode Door Connector
(8)	Inline Connector 350 (Auxiliary HVAC Harness Side)
(9)	Inline Connector 350 (Headliner Harness Side)
(10)	Inline Connector 397 (Auxiliary HVAC Harness Side)
(11)	Inline Connector 397 (RH Body Harness Side)

Figure 23:

RR D-Pilar Wiring (Utility)


(1)	Back Body Opening Inner Upper Panel
(2)	CHSML Cargo
(3)	Door Lock Switch Rear Cargo
(4)	Splice Pack 410
(5)	Speaker - RR Connector
(6)	Inline to Headliner

Figure 24:

LR D-Pillar Wiring (Utility)


(1)	Body Side Inner Panel
(2)	Body Harness-LH
(3)	Speaker- Subwoofer Connector
(4)	Speaker-LR (D Pillar)

Figure 25:

Chassis Wiring Harness to Rear Side Rail -- LH


(1)	Inline Connector C405 to Tail Lamp Harness
(2)	Rear Shock Absorber Connector
(3)	Frame
(4)	C197 (RTD Connector)
(5)	Chassis Harness

Figure 26:

Real Time Damping Connector to Body Wiring Harness


(1)	C197 (Chassis Harness Side)
(2)	C197 (Body Harness Side)
(3)	Frame

Figure 27:

RR Frame -- Lighting Components


(1)	Back Body Opening Lower Frame
(2)	Rear Lamp Wiring Harness
(3)	Inline Connector 403 (Rear Lamp Harness Side)
(4)	Inline Connector 403 (Tail Lamp Harness Side)
(5)	Inline Connector 404 (Rear Lamp Harness Side)
(6)	Inline Connector 404 (Rear License Plate Harness Side)
(7)	License Plate Wiring Harness

Figure 28:

Liftgate Wiring Harness to Liftgate


(1)	Liftgate with Liftglass
(2)	Liftglass Defog Connector
(3)	Liftgate Latch Connector
(4)	Liftgate Lower Latch Connector
(5)	Liftgate Latch Connector
(6)	Liftgate Lower Latch Connector
(7)	Liftgate Latch Connector
(8)	Wiper Motor Connector
(9)	Inline Connector Harness