Harness Routing Diagrams

Fig 1: Engine Harness Routing - Lower Front (LS7)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Knock Sensor (KS) 1
2	X159
3	X160

Fig 2: Engine Harness Routing - Left Front (LS3 or LS7)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Generator X1
2	X140
3	Heated Oxygen Sensor (HO2S) - Bank 1 Sensor 1 Connector
4	G107
5	Heated Oxygen Sensor (HO2S) - Bank 1 Sensor 2 Connector
6	Knock Sensor (KS) 1
7	G105
8	X159
9	Suspension Position Sensor - Left Front (FE2) Connector
10	X103
11	Variable Effort Steering Actuator Connector
12	J195
13	Electronic Brake Control Module (EBCM) Connector
14	Generator X2

Fig 3: Engine Harness Routing - Right Front (LS3)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X139
2	Heated Oxygen Sensor (HO2S) - Bank 2 Sensor 1
3	Manifold Absolute Pressure (MAP) Sensor
4	Throttle Body
5	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
6	A/C Compressor Clutch
7	X160
8	Suspension Position Sensor - Right Front (FE2) Connector
9	Fuse Block - Underhood X2
10	Engine Control Module (ECM) X2
11	Engine Control Module (ECM) X1
12	X184
13	X182
14	X180
15	X186
16	Engine Oil Level and Temperature Sensor (LS3)
17	Crankshaft Position (CKP) Sensor
18	Heated Oxygen Sensor (HO2S) - Bank 2 Sensor 2 Connector
19	Fusible Link
20	G106
21	Starter Solenoid
22	Starter Motor
23	Knock Sensor (KS) 2

Fig 4: Engine Harness Routing - Lower Front (LS9)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X160
2	Knock Sensor (KS) 1
3	X159

Fig 5: Engine Harness Routing (LS9)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X182
2	X186
3	X180
4	X184
5	X149
6	X150

Fig 6: Automatic Transmission Harness Routing

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X184
2	Suspension Control Module (F55) Connector
3	X168 (LS3 with F55)
4	Automatic Transmission (MYC)
5	Fuel Pump and Sender Assembly - Primary
6	Fuel Level Sensor - Secondary
7	Control Solenoid Valve Assembly (MYC) Connector
8	Differential Carrier

Fig 7: Manual Transmission and Fuel Tank Harness Routing (1 of 2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Wheel Speed Sensor (WSS) - Right Rear
2	Vehicle Speed Sensor (VSS) (MN6)
3	Backup Lamp Switch (MN6)
4	X420
5	Fuel Tank Pressure (FTP) Sensor
6	Fuel Level Sensor - Secondary
7	X460
8	Suspension Position Sensor - Right Rear (FE2)
9	G401
10	X439 (F55)
11	Wheel Speed Sensor (WSS) - Left Rear
12	Suspension Position Sensor - Left Rear (FE2)
13	Manual Transmission Fluid Temperature Sensor (MN6)
14	X459
15	Skip Shift Solenoid (MN6)
16	Reverse Lockout Solenoid (MN6)
17	X460
18	Fuel Pump
19	Fuel Pump and Sender Assembly - Secondary
20	X168
21	X184
22	Suspension Control Module (F55) Connector

Fig 8: Manual Transmission and Fuel Tank Harness Routing (2 of 2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X469 (MH3)
2	X442 (MH3)
3	X439 (F55)
4	X455
5	X440 (F55)
6	X460
7	X421 (MH3)
8	Fuel Pressure Sensor

Fig 9: Forward Lamp Harness Routing (1 of 2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Turn Signal Repeater Lamp - Left (T90)
2	Shock Absorber Actuator - Left Front (F55)
3	G101
4	X119
5	Side Marker Lamp - Left Front
6	Fog Lamp - Left Front
7	Inflatable Restraint Front End Sensor - Left
8	Inflatable Restraint Front End Sensor - Right
9	Ambient Air Temperature Sensor
10	Charge Air Cooler (CAC) Coolant Pump (LS9)
11	X131
12	Horn Assembly
13	Fog Lamp - Right Front
14	J102
15	X120
16	Side Marker Lamp - Right Front
17	Suspension Control Module (F55)
18	Shock Absorber Actuator - Right Front (F55)
19	Engine Control Module (ECM)
20	Hood Ajar Switch (UA2)
21	Fuse Block - Underhood X1
22	Turn Signal Repeater Lamp - Right (T90)
23	X149 (LS9)
24	X150 (LS9)

Fig 10: Forward Lamp Harness Routing (2 of 2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	A/C Refrigerant Pressure Sensor
2	Hood Ajar Switch (UA2)
3	X166
4	X186
5	X168 (LS3/LS7 with F55)
6	Windshield Washer Fluid Level Switch
7	Windshield Washer Fluid Pump
8	Headlamp Washer Fluid Pump (CE4)
9	J101
10	J103

Fig 11: Headlamps Harness Routing

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X120
2	X119

Fig 12: Instrument Panel Harness Routing - Engine Compartment

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X166
2	X180
3	X182
4	G104
5	Fuse Block - Underhood X3
6	Fuse Block - Underhood X4

Fig 13: Instrument Panel Harness Routing Splices - Engine and Passenger Compartment

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	J351
2	J640
3	J213 (CM7)
4	J312
5	J234
6	Body Control Module (BCM) X3
7	J208
8	J222
9	Relay Block - Instrument Panel
10	J246
11	J255
12	J205
13	J204
14	J219 (U3Z)

Fig 14: Instrument Panel Harness Routing - Inside Left I/P

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X275
2	X231
3	X501
4	X503 (U65)
5	JX205

Fig 15: Instrument Panel Harness Routing - Left and Center I/P

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X503 (U65)
2	JX205
3	J237
4	J211
5	J207
6	J219 (U3Z)
7	J204
8	J205
9	Console Trim
10	J221
11	J200
12	G201
13	J201 (CM7/UV6)
14	X501

Fig 16: Steering Column Harness Routing

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X231

Fig 17: Instrument Panel Harness Routing - Inside Right I/P

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X285 (UA2)
2	X279
3	JX208
4	X602 (U65)
5	Coaxial Cable (U2K)
6	X600

Fig 18: Instrument Panel Harness Routing - Under Left I/P and Driver Seat

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Driver Door
2	X501
3	X503 (U65)
4	X231
5	X275
6	Floor Console
7	X377
8	X379 (AAB)
9	X375

Fig 19: Instrument Panel Harness Routing Splices - Near the Passenger Floor

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	J217 (LS3)
2	Fuse Block - Instrument Panel
3	G202
4	J234
5	J202
6	JX208

Fig 20: Front Passenger Compartment Harness Routing

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Cigar Lighter
2	Accessory Power Outlet
3	G301
4	G201
5	JX205
6	Ignition Mode Switch

Fig 21: Driver Door Harness Routing

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Door Handle Switch - Driver Exterior
2	Door Lock Indicator - Driver
3	J579
4	J559
5	Memory/Heated Seat Switch - Driver
6	Door Lock Switch - Driver
7	Speaker - Left Front
8	Outside Rearview Mirror - Driver X1
9	J539
10	Outside Rearview Mirror - Driver X2
11	X503 (U65)
12	X501
13	Speaker - Left Subwoofer
14	Door Control Module - Driver
15	Window Switch - Driver
16	Door Handle Switch - Driver Interior
17	X555
18	Inflatable Restraint Side Impact Sensor (SIS) - Left

Fig 22: Passenger Door Harness Routing

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Outside Rearview Mirror - Passenger X2
2	Outside Rearview Mirror - Passenger X1
3	Speaker - Right Front
4	Door Lock Switch - Passenger
5	J680
6	Door Handle Switch - Passenger Interior
7	J660
8	Door Lock Indicator - Passenger
9	Door Handle Switch - Passenger Exterior
10	Inflatable Restraint Side Impact Sensor (SIS) - Right
11	X666
12	Window Switch - Passenger
13	Door Control Module - Passenger
14	Speaker - Right Subwoofer
15	X600
16	X602 (U65)
17	J640

Fig 23: Rear Passenger Compartment Harness Routing (C05 or CM7)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X382
2	G302
3	X380
4	Door Latch - Passenger Connector
5	Folding Top Stowage Compartment Lid Latch Pulldown Actuator Connector (CM7)
6	Rear Compartment Courtesy Lamp - Right Connector
7	X455
8	X433 (CM7)
9	Rear Compartment Lid Latch Connector
10	Keyless Entry Antenna - Rear Compartment Connector
11	Rear Compartment Courtesy Lamp - Left Connector
12	Fuel Door Release Actuator Connector
13	Door Latch - Driver Connector
14	G301
15	X377
16	X379 (AAB)
17	X375

Fig 24: Rear Passenger Compartment Harness Routing (except C05 or CM7)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X382
2	X380
3	G302
4	Door Latch - Passenger Connector
5	Keyless Entry Antenna - Rear Compartment
6	Rear Window Defogger Grid X2
7	Rear Compartment Courtesy Lamp - Right Connector
8	X455
9	Rear Compartment Lid Latch Connector
10	Rear Compartment Courtesy Lamp - Left Connector
11	Fuel Door Release Actuator Connector
12	Rear Window Defogger Grid X1
13	G301
14	X377
15	X379 (AAB)
16	X375

Fig 25: Folding Top Harness Routing (CM7)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X431
2	X433

Fig 26: Rear Body Harness Routing Splices (without T79 and T93)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	License Lamp Connector - Right
2	Rear Compartment Lid Release Switch Connector - Exterior
3	Center High Mounted Stop Lamp Connector (CHMSL)
4	License Lamp Connector- Left
5	Tail/Stop and Turn Signal Lamp Connector - Left Inner
6	Tail/Stop and Turn Signal Lamp Connector - Left Outer
7	Side Marker Lamp Connector - Left Rear
8	Backup Lamp Connector - Left
9	J457
10	J471
11	J470
12	Backup Lamp Connector - Right
13	J455
14	J458
15	Side Marker Lamp Connector - Right Rear
16	Tail/Stop and Turn Signal Lamp Connector - Right Outer
17	Tail/Stop and Turn Signal Lamp Connector - Right Inner
18	Tail/Stop and Turn Signal Lamp - Right Inner
19	Tail/Stop and Turn Signal Lamp - Right Outer
20	Backup Lamp - Right
21	License Lamp - Right
22	Rear Compartment Lid Release Switch - Exterior
23	License Lamp - Left
24	Center High Mounted Stop Lamp (CHMSL)
25	Backup Lamp - Left
26	Tail/Stop and Turn Signal Lamp - Left Inner
27	Tail/Stop and Turn Signal Lamp - Left Outer

Fig 27: Rear Body Harness Routing Splices (T79 and T93)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Fog Lamp - Right Rear (T79)
2	License Lamp - Right
3	Rear Compartment Lid Release Switch - Exterior
4	Center High Mounted Stop Lamp (CHMSL)
5	License Lamp - Left
6	Fog Lamp - Left Rear (T79)
7	Tail/Stop Lamp - Left (T93)
8	Turn Signal Lamp - Left Rear (T93)
9	Side Marker Lamp - Left Rear
10	Backup Lamp - Left
11	J459
12	J471
13	J470
14	Backup Lamp - Right
15	J455
16	J472
17	Side Marker Lamp - Right Rear
18	Turn Signal Lamp - Right Rear (T93)
19	Tail/Stop Lamp - Right (T93)
20	Tail/Stop Lamp - Right (T93)
21	Turn Signal Lamp - Right Rear (T93)
22	Fog Lamp - Right Rear (T79)
23	Backup Lamp - Right
24	License Lamp - Right
25	Rear Compartment Lid Release Switch - Exterior
26	License Lamp - Left
27	Center High Mounted Stop Lamp (CHMSL)
28	Backup Lamp - Left
29	Fog Lamp - Left Rear (T79)
30	Turn Signal Lamp - Left Rear (T93)
31	Tail/Stop Lamp - Left (T93)