Harness Routing Views. Chevrolet Silverado

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2009 🢒 Silverado - 4WD 🢒 Engine 🢒 Engine Electrical 🢒 Harness Routing Views

Figure 1:

Forward Lamp harness routing (Gas except LY6) - 1 of 2


(1)	X100
(2)	X103
(3)	X120 (HP2)
(4)	X106

Figure 2:

Forward Lamp harness routing (Gas except LY6) - 2 of 2


(1)	J117 (HP2)
(2)	J101
(3)	J118 (HP2)
(4)	J119 (HP2)
(5)	J100
(6)	J115 (HP2)
(7)	J114 (HP2)

Figure 3:

Forward Lamp Harness Routing (Diesel/LY6)


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

Figure 4:

Engine Harness Routing - Left Side (4.3L)


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

Figure 5:

Engine Harness Routing - Top (4.3L)


(1)	Mega Fuse Ring Terminal
(2)	X175 (M30)
(3)	J128
(4)	J105
(5)	J106
(6)	J130 (M30 with NQG/NQH)
(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 6:

Camshaft Position Sensor Jumper Harness Routing (4.8L/5.3L/6.0L/6.2L)


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

Figure 7:

Engine Harness Routing - Left Front Side (4.8L/5.3L/6.0L/6.2L except LFA/HP2)


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

Figure 8:

Engine Harness Routing - Right Front Side (4.8L/5.3L/6.0L/6.2L except LFA/HP2)


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

Figure 9:

Engine Harness Routing - Rear (4.8L/5.3L/6.0L/6.2L except LFA/HP2)


(1)	Dash Panel
(2)	Transmission
(3)	X175 (M30)
(4)	Transfer Case Shift Control Switch (NQG)

Figure 10:

Heated Oxygen Sensor (HO2S) Jumper Harness Routing (LY6)


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

Figure 11:

Engine Harness Routing - Front (LFA/HP2) - 1 of 2


(1)	X111
(2)	X109
(3)	X110 (NQH)
(4)	X120
(5)	X150
(6)	X112

Figure 12:

Engine Harness Routing - Front (LFA/HP2) - 2 of 2


(1)	J105
(2)	J121
(3)	J120
(4)	J123
(5)	J130 (NQH)
(6)	J124
(7)	J106
(8)	J104
(9)	J122

Figure 13:

Engine Harness Routing - Rear (LFA/HP2)


(1)	X113
(2)	X176
(3)	Automatic Transmission Connector
(4)	X300

Figure 14:

Engine Chassis Harness Routing - Top Front (Diesel)


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

Figure 15:

Engine Chassis Harness Routing - Top Rear (Diesel)


(1)	J104
(2)	J105
(3)	J106
(4)	J132 (K76/YF2)
(5)	J133 (PTO)
(6)	X110 (NQF/NQG)

Figure 16:

Engine Chassis Harness Routing - Rear (Diesel)


(1)	X300
(2)	G300
(3)	Automatic Transmission Turbine Speed Sensor (MW7)
(4)	Automatic Transmission (MW7)
(5)	Vehicle Speed Sensor (VSS) (MW7)
(6)	X124 (PTO)
(7)	Power Take Off (PTO) Module (PTO)
(8)	X175 (MW7)

Figure 17:

Auxiliary Battery Harness Routing (TP2)


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

Figure 18:

I/P Harness Routing - Engine Compartment (Except HP2)


(1)	G110 (XA7)
(2)	J113 (NQH)
(3)	Fuse Block - Underhood X5
(4)	Fuse Block - Underhood X4
(5)	Left Front Fender
(6)	X103
(7)	X109
(8)	X115

Figure 19:

I/P Harness Routing - Engine Compartment (HP2)


(1)	X115
(2)	X129
(3)	J113 (NQH)
(4)	X109
(5)	X103
(6)	X150

Figure 20:

I/P Harness Routing - Passenger Compartment (HP2) - 1 of 2


(1)	X201
(2)	X205
(3)	X200
(4)	X215
(5)	X212
(6)	X202

Figure 21:

I/P Harness Routing - Passenger Compartment (HP2) - 2 of 2


(1)	J201
(2)	J206
(3)	J203
(4)	J225
(5)	J240
(6)	J226
(7)	J231
(8)	J200
(9)	J222
(10)	J241
(11)	JX221
(12)	J207

Figure 22:

I/P Harness Routing - Passenger Compartment (Except HP2) - 1 of 2


(1)	X201
(2)	X205
(3)	Junction Block - Right I/P
(4)	X200
(5)	X202

Figure 23:

I/P Harness Routing - Passenger Compartment (Except HP2) - 2 of 2


(1)	J207 (NQF/NQH except MEX)
(2)	J201
(3)	JX221
(4)	J200
(5)	J203 (Y91)
(6)	J206 (CJ2)

Figure 24:

I/P Extension Harness Routing (SLT except Y91/MEX)


(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) (UE1)
(8)	X301 (UQA/D07)
(9)	Floor Panel

Figure 25:

I/P Extension Harness Routing (except SLT/Y91/MEX)


(1)	X203 (UE1/U3U/UVB)
(2)	X204 (U42)
(3)	X206 (U42)
(4)	X213 (COAX)
(5)	X212
(6)	X301 (UQA/D07)

Figure 26:

Fuse Block Jumper Harness Routing (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)	Blunt Cut - Mobile Radio Provision
(11)	X226
(12)	Instrument Panel

Figure 27:

Brake Clutch Harness Routing


(1)	Driver Door Frame
(2)	X205
(3)	X102 (JL1)
(4)	Accelerator Pedal Position (APP) Sensor Connector
(5)	Junction Block - Left I/P (except MEX)

Figure 28:

Steering Column Harness Routing


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

Figure 29:

Overhead Console Harness Routing


(1)	X304 (except MEX)
(2)	Inflatable Restraint Passenger Air Bag On/Off Indicator (AL0/C99 except MEX)
(3)	Cellular Telephone Microphone (UE1/U3U/UVB)
(4)	Roof Beacon Switch (5X7/5Y0/TRW)
(5)	Sliding Rear Window Switch (A48)
(6)	Dome/Reading Lamps - Front
(7)	J322 (TRW/UG1/A48)
(8)	J323
(9)	X313 (CF5/TRW/5X7/5Y0)
(10)	Blunt Cut - Roof Mounted Beacon Provision (TRW)
(11)	Roof Beacon Relay (TRW)

Figure 30:

Headliner Harness Routing (Regular Cab)


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

Figure 31:

Headliner Harness Routing (Extended Cab)


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

Figure 32:

Headliner Harness Routing (Crew Cab)


(1)	X304
(2)	X318
(3)	J327
(4)	J328
(5)	X208 (A48)
(6)	X203 (UE1/U3U/UVB)
(7)	X204 (U42)
(8)	I/P Trim

Figure 33:

Body Harness Routing (Regular Cab)


(1)	X200
(2)	G302
(3)	X319 (AZ3/D07 with UQ3)
(4)	JX339 (except MEX)
(5)	X305 (except MEX)
(6)	G304 (except MEX)
(7)	J304 (AG2)
(8)	J303
(9)	X303 (except MEX)
(10)	Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
(11)	X275
(12)	X202
(13)	X500 (YE9 without AN3/DL3)
(14)	X501 (YE9 without AN3/DL3)
(15)	X601 (ASF)
(16)	X600 (YE9 without AN3/DL3)

Figure 34:

Body Harness Routing (Extended Cab)


(1)	X700
(2)	G303
(3)	X303
(4)	Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
(5)	X501 (YE9 without AN3/DL3)
(6)	X275
(7)	X208 (A48)
(8)	X202
(9)	X500 (YE9 without AN3/DL3)
(10)	G301
(11)	J304
(12)	X200
(13)	X601 (ASF)
(14)	X600 (YE9 without AN3/DL3)
(15)	G302
(16)	JX339
(17)	X305
(18)	X319 (AZ3/D07 with UQ3)
(19)	X800
(20)	J302
(21)	G304
(22)	X320 (A48)
(23)	J303
(24)	X322 (UD7)
(25)	Floor Panel

Figure 35:

Body Harness Routing (Crew Cab except HP2)


(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 without AN3/DL3)
(19)	X502 (ASF without YE9 or with AN3)
(20)	X202
(21)	X500 (YE9 without AN3/DL3)
(22)	X208 (A48)
(23)	X600 (YE9 without AN3/DL3)

Figure 36:

Body Harness Routing (Crew Cab with HP2) - 1 of 2


(1)	X501 (Except DL3)
(2)	X275
(3)	X200
(4)	X215
(5)	X319
(6)	X305
(7)	X800
(8)	X322 (UD7)
(9)	X320 (A48)
(10)	X350
(11)	X303
(12)	X700
(13)	X601 (ASF)
(14)	X600 (Except DL3)
(15)	X500 (Except DL3) or X502 (DL3)
(16)	X202
(17)	X208 (A48)

Figure 37:

Body Harness Routing (Crew Cab with HP2) - 2 of 2


(1)	J303
(2)	J302
(3)	J304
(4)	JX339

Figure 38:

Chassis Harness Routing (Except LY6/LMM/HP2)


(1)	X300
(2)	X408 (UD7)
(3)	G401
(4)	J423 (except LU3)
(5)	J331
(6)	Fuse Block - Underhood X3
(7)	X115
(8)	X102 (JL1)
(9)	J338 (except LU3/LMG)
(10)	J300
(11)	G300

Figure 39:

Chassis Harness Routing (HP2) - 1 of 2


(1)	X102 (JL1)
(2)	X300
(3)	X408 (UD7)
(4)	X129
(5)	X115

Figure 40:

Chassis Harness Routing (HP2) - 2 of 2


(1)	J331
(2)	J411 (JL1)
(3)	J423
(4)	J422
(5)	J338
(6)	J301
(7)	J321
(8)	J325
(9)	J300

Figure 41:

Chassis Harness Routing (LY6/LMM except 31 Series)


(1)	X300
(2)	X408 (UD7)
(3)	Trailer Connector (UY7)
(4)	J411 (JL1)
(5)	G401
(6)	J331
(7)	Fuse Block - Underhood X3
(8)	X115
(9)	X102 (JL1)
(10)	J300
(11)	G300

Figure 42:

Chassis Harness - Front Engine Compartment (31 Series)


(1)	X102 (JL1)
(2)	Fuel Pump Relay - Secondary (LY6 without NQZ)
(3)	Fuse Block - Underhood
(4)	X126

Figure 43:

Chassis Harness (31 Series)


(1)	Trailer Brake Control Relay (JL1)
(2)	J422 (JL1)
(3)	Trailer Connector
(4)	J331 (Diesel without NQZ/LY6)
(5)	X300 (LY6)
(6)	X300 (Diesel)
(7)	J411 (JL1)
(8)	Junction Block-Rear Lamps
(9)	G401
(10)	J338 (JL1)
(11)	G300
(12)	J300 (LY6 without NQZ)

Figure 44:

Camper Harness Routing and Chassis Harness Routing - Rear


(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)	Blunt Cut - Camper Trailer Provision (UY2)
(12)	G401 (except LY6/LMM)
(13)	Trailer Connector (UY7)

Figure 45:

Driver Door Harness Routing


(1)	Door Frame
(2)	Fuse Block - I/P X4
(3)	J502 (YE9 without AN3)
(4)	X500 (YE9 without AN3/DL3)
(5)	X502 (ASF without YE9 or with AN3)

Figure 46:

Passenger Door Harness Routing


(1)	J604 (YE9 without AN3/DL3)
(2)	Junction Block - Right I/P X3
(3)	Door Frame
(4)	X601 (ASF)
(5)	X600 (YE9 without AN3/DL3)
(6)	J603 (YE9 without AN3/DL3)

Figure 47:

Left Rear Door Harness Routing (Extended Cab)


(1)	X700
(2)	Door Frame

Figure 48:

Left Rear Door Harness Routing (Crew Cab)


(1)	Door Frame
(2)	X700

Figure 49:

Right Rear Door Harness Routing (Extended Cab)


(1)	Door Frame
(2)	X800

Figure 50:

Right Rear Door Harness Routing (Crew Cab)


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

Figure 51:

Driver Seat Harness Routing


(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 (MSM) (AN3)
(11)	Inflatable Restraint Seat Position Sensor (SPS) - Driver (10 Series)
(12)	Seat Adjuster Motor Assembly - Driver (AG1)
(13)	Seat Belt Buckle - Driver

Figure 52:

Console Harness Routing (Y91/D07/UQA)


(1)	X319 (D07with UQ3)
(2)	X301
(3)	Console Bracket

Figure 53:

Passenger Seat Harness Routing


(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 Motor 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 54:

Sliding Rear Window Jumper Harness Routing (A48)


(1)	X320
(2)	Rear Window
(3)	J336 (except C49)
(4)	J335 (except C49)

Figure 55:

Left and Right Hip Lamp Harness Routing (R05)


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

Figure 56:

Rear Bumper Harness Routing


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