Power and Grounding Component Views. GMC Truck Yukon XL Denali 2006

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2006 🢒 Yukon XL Denali 🢒 Engine 🢒 Engine Electrical 🢒 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:

Front of Radiator


(1)	Outside Air Temperature Sensor
(2)	G100
(3)	Front Impact Sensor - LH
(4)	Front Impact Sensor - RH
(5)	G115
(6)	Outside Air Temperature Sensor (CJ2)

Figure 4:

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 5:

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 6:

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 7:

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 8:

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 9:

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 10:

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 11:

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


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

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:

G110 and G302


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

Figure 16:

Transfer Case Harness Routing (1500 Series)


(1)	Vent Tube
(2)	Vent Tube Connection
(3)	Front Axle Actuator
(4)	Front Axle Actuator Connector
(5)	Front Drive Axle Assembly (Mount)
(6)	Ground 110 (G110)
(7)	Left Inner Fender

Figure 17:

Transfer Case Harness Routing (2500 Series)


(1)	Ground 110 (G110)
(2)	Vent Tube
(3)	Vent Tube Connection
(4)	Front Axle Actuator
(5)	Front Axle Actuator Connector
(6)	Left Inner Fender

Figure 18:

RH Upper Instrument Panel


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

Figure 19:

Junction Block- I/P


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

Figure 20:

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 21:

Upper Left of the I/P Components


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

Figure 22:

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


(1)	Upper Dash Support
(2)	G203

Figure 23:

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 24:

Under I/P - Left Side


(1)	Passthrough to Electronic Throttle Control (ETC) Module
(2)	Electronic Adjustable Pedals (EAP) Relay (JF4)
(3)	Electronic Adjustable Pedals (EAP) Assembly (JF4)
(4)	Stop Lamp Switch
(5)	Accelerator Pedal Position Sensor
(6)	Electronic Adjustable Pedals (EAP) Position Sensor (JF4 w/AN3)
(7)	I/P Relay Block

Figure 25:

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 26:

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 27:

Driver Side B-Pillar Wiring


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

Figure 28:

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 29:

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 30:

G305


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

Figure 31:

G304 and G306


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

Figure 32:

Emergency Light Relay and G305-Utility/Crewcab


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

Figure 33:

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 34:

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)