Harness Routing Views. Chevrolet Chevy K Silverado

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2003 🢒 Chevy K Silverado - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E 🢒 Harness Routing Views

Figure 1:

OnStar Component Locations - Typical


(1)	Global Positioning Satellite (GPS) Antenna
(2)	Cellular Telephone Microphone
(3)	Global Positioning System (GPS)
(4)	Relay Block - Body
(5)	Vehicle Communication Unit (VCU)
(6)	OnStar Button Assembly
(7)	Vehicle Interface Unit (VIU)

Figure 2:

LH Front of Vehicle - Typical


(1)	Upper Radiator Support (Tie Bar)
(2)	Headlamp Assembly-LF
(3)	Headlamp - High Beam - Left Connector
(4)	Daytime Running Lamp (DRL)-Left
(5)	Daytime Running Lamp (DRL)-Left Socket
(6)	Windshield Washer Reservoir
(7)	Park/Turn Signal Lamp Socket-LF
(8)	Marker Lamp Socket-LF
(9)	Marker Lamp-LF
(10)	Park/Turn Signal Lamp-LF
(11)	Snowplow (Option) Connector C125
(12)	Headlamp Connector-Low Beam-Left
(13)	Marker Lamp-LF

Figure 3:

Fuse Block - Underhood


(1)	Fuse Block - Underhood Bracket
(2)	Inflatible Restraint Harness
(3)	Radiator Support
(4)	C103 -I/P Harness Side
(5)	C103 -Forward Lamp Harness Side
(6)	LH Battery Tray
(7)	Fuse Block - Underhood Bracket
(8)	Fuse Block - Underhood

Figure 4:

C100, C102 and C152


(1)	C102
(2)	Fuse Block - Underhood Support Mount
(3)	C152
(4)	C100

Figure 5:

C104, C114, C150, C151, C153, C154, and PTO Relay


(1)	Fuse Block - Underhood
(2)	C153 - Engine Harness to Transfer Case Harness
(3)	C150 - Transfer Case Harness to Axle Jumper Harness
(4)	Transfer Case Harness
(5)	C151 - I/P Harness to Automatic Transfer Case Harness (w/NP8/NR4) or C104 - I/P Harness to Forward Lamp Harness (w/o NP8/NR4)
(6)	C154 - I/P Harness to Automatic Transfer Case Harness (w/NP8/NR4) or C114 - Chassis Harness to I/P Harness (w/JL4/NYS)
(7)	Power Take-Off (PTO) Relay

Figure 6:

Primary Negative Battery Ground and G105 (6.6L)


(1)	Engine - 6.6L Diesel
(2)	Primary Negative Battery Cable
(3)	Primary Negative Battery Ground
(4)	G105
(5)	Engine Harness

Figure 7:

Left Side of the Engine (LB7)


(1)	Intake Air Temperature (IAT)/ Mass Air Flow (MAF) Sensor Connector
(2)	A/C Compressor Clutch Connector
(3)	Coolant Level Switch Connector
(4)	Generator - Left Connector
(5)	A/C Refrigerant Pressure Sensor Connector
(6)	Generator - Right Connector
(7)	C107
(8)	A/C Low Pressure Switch Connector
(9)	C108
(10)	S102
(11)	PTO Relay
(12)	Glow Plug Controller Power
(13)	Throttle Actuator Control (TAC) Module Connector
(14)	Automatic Transmission Input Shaft Speed (AT ISS) Sensor Connector
(15)	Automatic Transmission Turbine Speed Sensor Connector
(16)	C145
(17)	Automatic Transmission Output Speed Sensor Connector
(18)	Park/Neutral Position (PNP) Switch Connector
(19)	C100
(20)	Fuse Block - Underhood C2
(21)	C152
(22)	C106
(23)	S103
(24)	G104
(25)	Engine Control Module (ECM) C1
(26)	Engine Control Module (ECM) C2
(27)	Transmission Control Module (TCM) C1
(28)	Transmission Control Module (TCM) C2
(29)	S163

Figure 8:

Lower Right Side of the Engine (6.6L)


(1)	Engine - 6.6L Diesel
(2)	Engine Harness
(3)	G102
(4)	Auxiliary Negative Battery Ground
(5)	Starter Relay Terminal
(6)	Starter Solenoid

Figure 9:

C201 and A/T Shift Lock Control Connector


(1)	Inline Connector C201
(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 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:

Instrument Panel


(1)	C104 (YE9)
(2)	C106 (PTO)
(3)	Fuse Block Underhood - C1
(4)	C115 (NYS)
(5)	C105 (LB7)
(6)	S214 (NP8)
(7)	S202
(8)	P110
(9)	S213
(10)	S205
(11)	C222 (Except HP2)
(12)	C209 (Z55 or E52)
(13)	C306
(14)	C249
(15)	S210 (UQ7 and Y91)
(16)	C201
(17)	S218
(18)	C221
(19)	C206 (Y91 or HP2)
(20)	S212 (NYS)
(21)	P100
(22)	C154 (NP1 or NP8)
(23)	C102

Figure 12:

Left Front Door


(1)	Fuse Block Left I/P - C3
(2)	P500
(3)	C313

Figure 13:

Right Front Door


(1)	Fuse Block Right I/P - C7
(2)	Fuse Block Right I/P - C2
(3)	S601
(4)	C315
(5)	P600

Figure 14:

Chassis Wiring Harness to Front Frame -25 Series


(1)	Shock Absorber Solenoid-LF Connector
(2)	Wheel Speed Sensor (WSS)-LF Connector
(3)	Wheel Speed Sensor (WSS)-LF Connector
(4)	Suspension Position Sensor-LF Connector
(5)	Suspension Position Sensor-LF Connector
(6)	Chassis Harness
(7)	Shock Absorber Solenoid-RF Connector
(8)	Shock Absorber Solenoid-RF Connector
(9)	Suspension Position Sensor-RF Connector
(10)	Frame

Figure 15:

HVAC Module Assembly Connections, C296 and G200


(1)	Recirculation Actuator Connector
(2)	Instrument Panel
(3)	Electrical Harness Connector
(4)	G200
(5)	Blower Motor Resistor Assembly
(6)	Blower Motor Resistor Connector
(7)	C296
(8)	Air Temperature Actuator Connector
(9)	Air Temperature Actuator
(10)	Mode Actuator

Figure 16:

Headliner Harness to Relay I/P - Body


(1)	A - Pillar
(2)	Headliner Wiring Harness
(3)	Relay Block - I/P
(4)	Headliner Harness Connector C-6

Figure 17:

C200 and C204


(1)	C200 -I/P Harness Side
(2)	C204
(3)	A-Pillar
(4)	C200 -Door Harness Side

Figure 18:

Lower RF of the Passenger Compartment


(1)	C222
(2)	Body Harness

Figure 19:

C210 and Relay Block - I/P - C4


(1)	Relay Block - I/P
(2)	Relay Block - I/P - C4
(3)	C210 - Roof Beacon Relay Inline

Figure 20:

C304 and C299


(1)	Fuse Block - Right I/P
(2)	Fuse Block - Right I/P- C2
(3)	RF Door Harness
(4)	C304
(5)	C299

Figure 21:

LH Rear of Passenger Compartment


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

Figure 22:

Driver/Passenger Power Seat Wiring -C301, C305 and C399


(1)	C305
(2)	C399
(3)	Power Seat Wiring Harness to Heated Seat Switch
(4)	C301

Figure 23:

Driver Seat (w/Memory -- 1 of 2)


(1)	Inline Connector C324
(2)	Memory Seat Module-C2
(3)	Memory Seat Module-C1
(4)	Memory Seat Module
(5)	Inline Connector C321
(6)	Inline Connector C320
(7)	Memory Seat Module-C3
(8)	Positive Temperature Coefficient (PTC) Thermistor
(9)	Inline Connector C305
(10)	Inflatible Restraint Side Impact Sensor (SIS) - Left Connector
(11)	Inline Connector C323
(12)	Inline Connector C325
(13)	Inline Connector C322
(14)	Heated Seat Relay and Logic
(15)	Seat Belt Switch Connector
(16)	Seat Heater Element Connector