Power and Grounding Component Views. GMC Truck Yukon XL

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2005 🢒 Yukon XL - 4WD 🢒 Engine 🢒 Engine Controls - 8.1L 🢒 Power and Grounding Component Views

Figure 1:

Lower LF of the Radiator Support Components


(1)	LH Lower Radiator Support
(2)	Forward Lamp Harness
(3)	Negative Battery Cable (G100)
(4)	Frame
(5)	Ground 100 (G100)

Figure 2:

LF of Engine Compartment


(1)	Fuse Block - Underhood - Cooling Fan
(2)	Fuse Block - Underhood C1
(3)	Fuse Block - Underhood C2
(4)	Fuse Block - Underhood C4
(5)	Fuse Block - Underhood C3
(6)	Battery Positive Voltage (Forward Lamp Harness)
(7)	Battery Positive Voltage (Chassis Harness)
(8)	Fuse Block - Underhood C9
(9)	Fuse Block - Underhood C6
(10)	Fuse Block - Underhood C5
(11)	Fuse Block - Underhood C7
(12)	Battery Positive Voltage (I/P Harness)
(13)	G100
(14)	G115

Figure 3:

Fuse Block-Underhood


(1)	Fuse Block-Underhood Bracket
(2)	I/P Harness
(3)	Radiator Support
(4)	Inline Connector C103 or C104-I/P Harness Side
(5)	Inline Connector C103 or C104-Forward Lamp Harness Side
(6)	LH Battery Tray
(7)	Fuse Block-Underhood Bracket
(8)	Fuse Block-Underhood Bracket

Figure 4:

Fuse Block-Underhood Connectors


(1)	Fuse Block-Underhood
(2)	C4 (GRN)
(3)	C3 (RED)
(4)	Fuse Block-Underhood Bracket
(5)	LH Inner Fender (Shield)
(6)	LH Inner Fender
(7)	C1 (LT GRY)
(8)	C2 (BLK)

Figure 5:

Fuse Block-Underhood-C1 (LT GRY) and C6 (BRN)


(1)	Fuse Block-Underhood
(2)	C7 (BLK) Cavity
(3)	Fuse Block-Underhood Bracket
(4)	C6 (BRN)
(5)	I/P Harness
(6)	C1 (LT GRY)

Figure 6:

Fuse Block-Underhood-C2 (BLK) and C5 (BLK)


(1)	C2 (BLK)
(2)	Fuse Block-Underhood
(3)	Fuse Block-Underhood Bracket
(4)	C5 (BLK)
(5)	Engine Harness

Figure 7:

Fuse Block-Underhood-C3 (RED) and C8 (LT GRY)


(1)	C3 (RED)
(2)	Fuse Block-Underhood
(3)	C8 (LT GRY)
(4)	Fuse Block-Underhood Bracket
(5)	Chassis Harness

Figure 8:

Fuse Block-Underhood-C4 and Inlines


(1)	C4 (GRN)
(2)	I/P Inline Connectors
(3)	Fuse Block-Underhood Bracket
(4)	Connector Tether
(5)	I/P Harness Inline Connector
(6)	C103 (I/P Side)
(7)	C103 (FWD Lamp Side)
(8)	Forward Lamp Inline Connector
(9)	Fuse Block-Underhood

Figure 9:

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 10:

G102 (4.8L, 5.3L, and 6.0L)


(1)	Engine Coolant Temperature (ECT) Sensor Connector
(2)	G102
(3)	Negative Battery Cable

Figure 11:

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 12:

G102 - 8.1L


(1)	Engine - 8.1L
(2)	Knock Sensor (KS) - 2
(3)	Knock Sensor (KS) - 2 Connector
(4)	Engine Harness
(5)	G102 - Engine Harness Ground

Figure 13:

G104-8.1L


(1)	Engine-8.1L
(2)	EGR Valve
(3)	Engine Oil Pressure (EOP) Sensor
(4)	Engine Ground Strap
(5)	G104-Engine Harness Ground

Figure 14:

LR of Engine Compartment


(1)	G106
(2)	G107
(3)	Upper Plenum

Figure 15:

LR of the Engine Comparment -- Bulkhead Components


(1)	Windshield Wiper Motor Module Electrical Connector
(2)	Cruise Control Module (CCM) Electrical Connector
(3)	Plenum Panel
(4)	Cruise Control Module (CCM)
(5)	Pass-Through 100 (P100)
(6)	Dash Panel
(7)	Cap For Connector (Without Cruise Control)
(8)	Cruise Control Module (CCM) Electrical Connector
(9)	Harness Pass-Through
(10)	Windshield Wiper Motor Module

Figure 16:

G110 and G302


(1)	Left Front Body Mount
(2)	G110
(3)	G302 (10 Series)

Figure 17:

RH Upper Instrument Panel


(1)	Instrument Panel
(2)	Ground 200 (G200)
(3)	Ground Stud

Figure 18:

Lower RF of the Passenger Compartment


(1)	C222
(2)	C315 (AJ7)
(3)	Body Harness
(4)	C209

Figure 19:

Lower Center of the I/P Components


(1)	Ashtray Lamp Socket
(2)	Bulb
(3)	Ashtray Lamp Shield
(4)	Instrument Panel
(5)	Accessory Power Outlet
(6)	Cigar Lighter Assembly

Figure 20:

Junction Block- I/P


(1)	Junction Block - I/P
(2)	Instrument Panel

Figure 21:

HVAC Module Assembly (Connections)


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

Figure 22:

I/P Harness Routing - Left Side of I/P Console


(1)	C202 I/P Harness to Brake/Clutch Harness
(2)	C214 I/P Harness to Headliner Harness (w/UE1/U42)
(3)	C214 I/P Harness to Headliner Harness (w/UE1/U42)
(4)	G203 (1851)
(5)	C203 I/P to Left Front Door Harness (w/JF4)
(6)	C221 I/P Harness to Body Harness
(7)	C204 I/P Harness to Body Harness
(8)	Splice Pack SP250 (w/UQ7)
(9)	C201 I/P Harness to Steering Column Harness
(10)	C275 I/P Harness to Inflatable Restraint Steering Wheel Module
(11)	Splice Pack SP205

Figure 23:

Upper Left of the I/P Components


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

Figure 24:

Upper Left of I/P - G203 (w/ULT)


(1)	Upper Dash Support
(2)	G203

Figure 25:

Left Hand Lower Dash


(1)	Fuse Block Connector
(2)	Body Control Module (BCM) Connector
(3)	Splice Pack 205 (SP205)
(4)	Fuse Block
(5)	Data Link Connector (DLC)
(6)	LH IP Courtesy Lamp
(7)	LH IP Courtesy Lamp Socket
(8)	LH IP Support to Dash
(9)	Left Windshield Pillar Trim Panel

Figure 26:

Below the Left Side of the I/P, Near the Base of the Steering Column (Escalade ULT)


(1)	C201 I/P Harness to Steering Column Harness
(2)	Fuse Block Heated/Cooled Seats

Figure 27:

Left Side Frame Rail -- Grounds


(1)	Frame
(2)	Electronic Brake Control Module (EBCM) Ground (GNO)
(3)	Manual Selectable Ride Ground (G302)
(4)	Automatic Transfer Case/ABS Ground (G110)

Figure 28:

Driver Side B-Pillar Wiring


(1)	LH B-Pillar
(2)	G305
(3)	LH Body Harness

Figure 29:

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 30:

RH B-Pillar


(1)	Instrument Panel
(2)	C4 (and C3)
(3)	Junction Block-I/P
(4)	RT-B-Pillar
(5)	Ground 306 (G306)
(6)	RH Body Harness
(7)	I/P Harness Inline Connector C208

Figure 31:

G305


(1)	G305
(2)	LH B-Pillar
(3)	C305
(4)	Inflatable Restraint Sensing and Diagnostic Module (SDM)

Figure 32:

G304 and G306


(1)	C396
(2)	G306
(3)	G304
(4)	C399
(5)	RH B-Pillar

Figure 33:

Emergency Light Relay and G305-Utility/Crewcab


(1)	Emergency Roof Lamp Harness
(2)	Roof Beacon Relay
(3)	G305
(4)	B Pillar-LH Side

Figure 34:

Below Front Seats Components (Both w/Power)


(1)	Driver Power Seat Electrical Connector
(2)	Passenger Power Seat Wiring Harness
(3)	Passenger Power Seat Electrical Connector
(4)	Inline Wiring Connector (IP)
(5)	Power Seat Wiring Harness Connector
(6)	Ground 304 (G304)

Figure 35:

Fuel Tank and Sensor (Typical)


(1)	Fuel Sender
(2)	Ground 403 (G403)
(3)	Fuel Filler Ground 302 (G-403)
(4)	LH Frame
(5)	Fuel Sender (Typical)

Figure 36:

Right Rear of Cargo Area


(1)	Mode Actuator (w/C69/C36 Only)
(2)	C312 HVAC Auxiliary Harness to Headliner Harness (CJ3)
(3)	Air Temperature Actuator-Auxiliary (w/C69/C36 Only)
(4)	C397 Auxiliary HVAC Harness to Body Harness
(5)	Blower Motor Resistor Assembly-Auxiliary (CJ3)
(6)	Real Time Damping (RTD) Module (Z55)
(7)	Body Harness
(8)	SP410B
(9)	G410
(10)	SP410A (CJ3 w/C69/C36 Long Wheelbase Only)

Figure 37:

Trailer Receptacle


(1)	Platform Assembly Trailer Weight Distribution Hitch
(1)	Platform Assembly Trailer Weight Distribution Hitch
(2)	Trailer Wiring Receptacle
(3)	Trailer Wiring Receptacle Bracket
(3)	Trailer Wiring Receptacle Bracket

Figure 38:

Trailer Wiring Harness


(1)	Trailer Wiring Connector
(2)	Trailer Wiring Receptacle
(3)	Frame
(4)	Trailer Hitch Receiver

Figure 39:

Rear Frame -- Rear Lamp Components


(1)	Rear Lamp Bussing Block Bracket
(2)	Rear Lamp Bussing Block
(3)	Rear Cross Sill
(4)	Rear Lamps Bussing Block Electrical Connector

Figure 40:

LR Frame -- Camper Provision


(1)	Camper Wiring Harness
(2)	Frame
(3)	Camper Wiring Harness Connector