Harness Routing Views. GMC Truck Sierra

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E/4L70-E 🢒 Harness Routing Views

Figure 1:

Forward Lamp Harness (Gas -LY6)


(1)	G101
(2)	Left Front Fender
(3)	Left Front Headlamp
(4)	G100
(5)	Radiator
(6)	X106
(7)	J101
(8)	J100
(9)	X103
(10)	X100
(11)	Fuse Block - Underhood X1

Figure 2:

Forward Lamp Harness (Diesel/LY6)


(1)	J101
(2)	X106
(3)	X103
(4)	J100
(5)	X100
(6)	G100
(7)	G101

Figure 3:

Camshaft Position Sensor Jumper Harness 4.8L/5.2L/6.0L/6.2L


(1)	X112
(2)	Camshaft Position Sensor Jumper Harness

Figure 4:

Top of Engine 4.3L


(1)	Mega Fuse Ring Terminal
(2)	X175
(3)	J128
(4)	J105
(5)	J106
(6)	J130
(7)	Engine Control Module (ECM) X1
(8)	Engine Control Module (ECM) X2
(9)	G103
(10)	X112
(11)	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Connector

Figure 5:

Left Side of Engine 4.3L


(1)	Throttle Body
(2)	G107
(3)	Transmission
(4)	X300
(5)	X109
(6)	X110 (NQG/NQH/NP2)
(7)	Fuse Block - Underhood X2

Figure 6:

Right Side of Engine (4.3L)


(1)	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(2)	Throttle Body
(3)	Mass Air Flow (MAF) / Intake Air Temperature (IAT) Sensor
(4)	X112
(5)	G103
(6)	Crankshaft Position (CKP) Sensor
(7)	Knock Sensor (KS) - 2
(8)	Starter
(9)	Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
(10)	Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
(11)	Vehicle Speed Sensor (VSS)

Figure 7:

Left Front of Engine 4.8L, 5.3L, 6.0L, and 6.2L


(1)	Air Intake Duct
(2)	X111
(3)	Fuse Block - Underhood X2
(4)	X109
(5)	X110 (NQF/NQG/NQH/NP2)
(6)	Engine Control Module (ECM) X2
(7)	Engine Control Module (ECM) X1
(8)	G102
(9)	J105

Figure 8:

Right Front of Engine 4.8L, 5.3L, 6.0L, and 6.2L


(1)	Dash Panel
(2)	X113
(3)	J106
(4)	G103

Figure 9:

Near the Transmission 4.8L, 5.3L, 6.0L, and 6.2L


(1)	Dash Panel
(2)	Transmission
(3)	X175
(4)	Transfer Case Shift Control Switch (NQG/NP2)

Figure 10:

Heated Oxygen Sensor (HO2S) Jumper Harness (31 Series +6.0L)


(1)	X125
(2)	Heated Oxygen Sensor (H02S) Bank 2 Sensor 2

Figure 11:

Engine Harness Jumper to Engine POA Harness Diesel


(1)	Battery - Right
(2)	Fuse Holder - Underhood
(3)	X127
(4)	X108
(5)	X107
(6)	X123 (PTO)
(7)	Fuse Block - Underhood
(8)	X109
(9)	Battery - Left (6A6/TP2)
(10)	Engine Control Module (ECM)
(11)	Transmission Control Module (TCM)

Figure 12:

Engine Harness Jumper-Splices Diesel


(1)	J104
(2)	J105
(3)	J106
(4)	J132
(5)	J133 (PTO)
(6)	X110 (NQF/NQG/NP2)

Figure 13:

Top of Engine Diesel


(1)	Turbocharger Vane Position Control Solenoid Valve
(2)	Glow Plug Control Module (GPCM)
(3)	Fuel Rail Temperature (FRT) Sensor
(4)	Intake Air Temperature (IAT) Sensor 2 Connector
(5)	X128
(6)	A/C Refrigerant Pressure Sensor (C67/CJ2)
(7)	Generator - Left (K76)
(8)	A/C Compressor Clutch (C67/CJ2)
(9)	Engine Coolant Temperature (ECT) Sensor 1
(10)	Engine Coolant Temperature (ECT) Sensor 2
(11)	Camshaft Position (CMP) Sensor
(12)	X127
(13)	Generator - Right
(14)	Manifold Absolute Pressure (MAP) Sensor
(15)	Intake Air Heater (IAH) Module
(16)	Intake Air Temperature (IAT) Sensor 2
(17)	Fuel Heater
(18)	A/C Low Pressure Switch (C67/CJ2)

Figure 14:

Front Frame Rail Diesel


(1)	X300
(2)	G300
(3)	Automatic Transmission Turbine Speed Sensor
(4)	Automatic Transmission Input Shaft Speed (AT ISS) Sensor
(5)	Automatic Transmission
(6)	Vehicle Speed Sensor (VSS)
(7)	X124 (PTO)
(8)	Power Take Off (PTO) Module
(9)	X175

Figure 15:

Auxiliary Battery Harness (TP2)


(1)	Fuse Holder - Underhood
(2)	Run Relay
(3)	Auxiliary Battery Harness
(4)	Auxiliary Battery Relay
(5)	X122

Figure 16:

Steering Column Harness


(1)	X201
(2)	X276 (KA9)
(3)	Heated Steering Fuse (KA9)
(4)	X277 (KA9)
(5)	X275

Figure 17:

I/P Harness - Engine Compartment


(1)	G110
(2)	J113 (NQH)
(3)	Fuse Block - Underhood X5
(4)	Fuse Block - Underhood X4
(5)	Left Front Fender
(6)	X103
(7)	X109
(8)	X115 (JL4) or X126 (-JL4)

Figure 18:

I/P Extension Harness -Y91


(1)	JX223 (U2K/UK6/UE1)
(2)	X203 (UE1/U3U/UVB)
(3)	X204 (U42)
(4)	X212
(5)	X206 (U42)
(6)	X213 (COAX)
(7)	Vehicle Communication Interface Module (VCIM)
(8)	X211
(9)	Floor Panel

Figure 19:

I/P Harness - Passenger Compartment


(1)	J201 (-AN3)
(2)	JX221
(3)	J200
(4)	G201
(5)	X201
(6)	X205
(7)	J203 (Y91)
(8)	J206
(9)	Junction Block - Right I/P
(10)	X200
(11)	Floor Panel
(12)	X202
(13)	J207

Figure 20:

Fuse Block Jumper Harness (9L4)


(1)	Fuse Block - Mobile Radio
(2)	I/P Structure - Right Side
(3)	J224
(4)	J219
(5)	J209
(6)	X219
(7)	X214
(8)	J210
(9)	J211
(10)	Mobile Radio Blunt Cuts
(11)	X226
(12)	Instrument Panel

Figure 21:

Overhead Console Harness


(1)	X304
(2)	Inflatable Restraint Passenger Air Bag ON/OFF Indicator (AL0/C99)
(3)	Cellular Microphone (UE1/U3U/UVB)
(4)	Roof Beacon Switch (TRW)
(5)	Sliding Rear Window Switch (A48)
(6)	Courtesy/Reading Lamps-Front
(7)	J322
(8)	J323
(9)	X313 (CF5/TRW/5X7/5Y0)
(10)	Roof Mounted Beacon Blunt Cuts (TRW)
(11)	Roof Beacon Relay (TRW)

Figure 22:

Console Harness (Y91/D07/UQA)


(1)	X319 (D07 +UQ3)
(2)	X211
(3)	Console Bracket

Figure 23:

Body Harness Regular Cab


(1)	X200
(2)	G302
(3)	X319 (D07 +UQ3/AZ3)
(4)	JX339
(5)	X305
(6)	G304
(7)	J304
(8)	J303
(9)	X303
(10)	Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
(11)	X275
(12)	X202
(13)	X500 (YE9 -AN3/DL3)
(14)	X501 (YE9 -AN3/DL3)
(15)	X601 (ASF)
(16)	X600 (YE9 -AN3/DL3)

Figure 24:

Body Harness Extended Cab


(1)	X700
(2)	G303
(3)	X303
(4)	Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
(5)	X501 (YE9 -AN3/DL3)
(6)	X275
(7)	X321 (A48)
(8)	X202
(9)	X500 (YE9 -AN3/DL3)
(10)	G301
(11)	J304
(12)	X200
(13)	X601 (ASF)
(14)	X600 (YE9 -AN3/DL3)
(15)	G302
(16)	JX339
(17)	X305
(18)	X319 (D07 +UQ3/AZ3)
(19)	X800
(20)	J302
(21)	G304
(22)	X320 (A48)
(23)	J303
(24)	X322 (UD7)
(25)	Floor Panel

Figure 25:

Body Harness Crew Cab


(1)	X601 (ASF)
(2)	X309 (Y91)
(3)	G302
(4)	J302
(5)	JX339
(6)	G301
(7)	J304
(8)	X305
(9)	X800
(10)	G304
(11)	G307
(12)	X320 (A48)
(13)	J303
(14)	G303
(15)	X700
(16)	X303
(17)	Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
(18)	X501 (YE9 -AN3/DL3)
(19)	X502 (ASF -YE9/+AN3)
(20)	J301 (-AN3/DL3)
(21)	X202
(22)	X500 (YE9 -AN3/DL3)
(23)	X321 (A48)
(24)	X600 (YE9 -AN3/DL3)

Figure 26:

Driver Seat


(1)	Seat Recline Motor - Driver (AN3)
(2)	Seat Lumbar Vertical Motor Position Sensor - Driver (AN3)
(3)	Seat Lumbar Vertical Motor - Driver (AN3)
(4)	X324 (AN3)
(5)	Seat Lumbar Horizontal Motor - Driver (AN3)
(6)	Seat Lumbar Horizontal Motor Position Sensor - Driver (AN3)
(7)	Seat Recline Position Sensor - Driver (AN3)
(8)	Seat Lumbar Switch - Driver (AN3)
(9)	Seat Adjuster Switch - Driver (AG1)
(10)	Memory Seat Module (AN3)
(11)	Inflatable Restraint Seat Position Sensor (SPS) - Left (10 Series)
(12)	Seat Adjuster Assembly - Driver (AG1)
(13)	Seat Belt Buckle - Driver

Figure 27:

Passenger Seat


(1)	Seat Frame
(2)	X325 (AN3)
(3)	Seat Lumbar Vertical Motor - Passenger (AN3)
(4)	Seat Adjuster Switch - Passenger (AG2)
(5)	Seat Lumbar Switch - Passenger (AN3)
(6)	Seat Belt Buckle - Passenger
(7)	Inflatable Restraint Passenger Presence System (PPS) Module (AL0)
(8)	Seat Adjuster Assembly - Passenger (AG2)
(9)	Inflatable Restraint Passenger Presence System (PPS) Sensor (AL0)
(10)	Seat Recline Motor - Passenger (AN3)
(11)	Seat Lumbar Horizontal Motor - Passenger (AN3)

Figure 28:

Brake Clutch Harness


(1)	Driver Door Frame
(2)	X205
(3)	X220 (JL1)
(4)	Accelerator Pedal Position (APP) sensor Connector
(5)	Junction Block - Left I/P

Figure 29:

Headliner Harness Regular Cab


(1)	X304
(2)	X318
(3)	J327
(4)	J328
(5)	X203 (UE1)

Figure 30:

Headliner Harness Extended Cab


(1)	X304
(2)	X318
(3)	J327
(4)	J328
(5)	X203 (UE1/U3U/UVB)

Figure 31:

Headliner Harness Crew Cab


(1)	X304
(2)	X318
(3)	J327
(4)	J328
(5)	X321 (A48)
(6)	X203 (UE1/U3U/UVB)
(7)	X204 (U42)
(8)	I/P Trim

Figure 32:

Driver Door


(1)	Door Frame
(2)	Fuse Block - I/P X4
(3)	J502
(4)	X500 (YE9 -AN3/DL3)
(5)	X502 (ASF -YE9/+AN3)

Figure 33:

Passenger Door


(1)	J604 (YE9 -AN3/DL3)
(2)	Junction Block - Right I/P X3
(3)	Door Frame
(4)	X601 (ASF)
(5)	X600 (YE9 -AN3/DL3)
(6)	J603 (YE9 -AN3/DL3)

Figure 34:

Left Rear Door Extended Cab


(1)	X700
(2)	Door Frame

Figure 35:

Right Rear Door Extended Cab


(1)	Door Frame
(2)	X800

Figure 36:

Left Rear Door Crew Cab


(1)	Door Frame
(2)	X700

Figure 37:

Right Rear Door Crew Cab


(1)	X800
(2)	Door Handle
(3)	Door Frame

Figure 38:

Chassis Harness (LY6/LMM)


(1)	X300
(2)	X408 (UD7)
(3)	Trailer Tow Connector (UY7)
(4)	J411 (JL1)
(5)	G401
(6)	J331
(7)	Fuse Block -- Underhood X3
(8)	X126
(9)	X220 (JL1)
(10)	J300
(11)	G300

Figure 39:

Chassis Harness (except LY6/LMM)


(1)	X300
(2)	X408 (UD7)
(3)	G401
(4)	J423 (except LU3/LMG/LC9)
(5)	J331
(6)	Fuse Block - Underhood X3
(7)	X115 (JL4) or X126 (w/o JL4)
(8)	X220 (JL1)
(9)	J338 (except LU2/LMG)
(10)	J300
(11)	G300

Figure 40:

Camper/Trailer Harness and Chassis Rear Harness


(1)	X414 (UY2/8S3)
(2)	J420 (UY2)
(3)	Camper/Trailer Harness
(4)	J415 (UY2)
(5)	Chassis Harness
(6)	J416 (UY2)
(7)	J417 (UY2)
(8)	J414 (UY2)
(9)	J421 (UY2)
(10)	J410 (UY2)
(11)	Camper / Trailer Harness Blunt Cuts (UY2)
(12)	G401 (except LY6/LMM)
(13)	Trailer Connector (UY7)

Figure 41:

Sliding Rear Window Jumper Harness (A48)


(1)	X320
(2)	Rear Window
(3)	J336
(4)	J335

Figure 42:

Rear Bumper Harness


(1)	Rear Bumper
(2)	J403 (UD7)
(3)	J404 (UD7)
(4)	Junction Block - Rear Connector
(5)	X408 (UD7)

Figure 43:

Hip Lamp Harnesses(R05)


(1)	X415
(2)	J412
(3)	J419
(4)	Right Hip Lamp Harness
(5)	Left Hip Lamp Harness
(6)	J418
(7)	J413
(8)	X416