GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Epica 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Harness Routing Views
Figure 1:

ABS Harness
Object Number: 1864926 Size: MF
(1)Electronic Brake Control Module (EBCM)
(2)G105
(3)Oil Feeding Connector
Figure 2:

Body Harness LHD
Object Number: 1864936 Size: MF
(1)X371
(2)Power Seat Test Connector
(3)JX301
(4)X351/X352
(5)J301
(6)Fuse Block - Underhood
(7)X3
(8)X4
(9)Windshield Wiper Motor
(10)Stop Lamp Switch
(11)Accelerator Pedal Position (APP) Sensor
(12)Body Control Module (BCM) (ISU)
(13)G301
Figure 3:

Body Harness RHD
Object Number: 1864923 Size: MF
(1)X351/X352
(2)Connector Box - Right
(3)X301
(4)Power Seat Test Connector
(5)X381
Figure 4:

Engine Harness 2.0L (1 of 3)
Object Number: 1864915 Size: MF
(1)Diesel Particulate Pressure Sensor
(2)Glow Plug Control Unit
(3)Engine Control Module (ECM)
(4)Exhaust Gas Temperature Sensor
Figure 5:

Engine Harness 2.0L (2 of 3)
Object Number: 1864916 Size: MF
(1)Injector 1
(2)Injector 2
(3)Injector 3
(4)Injector 4
(5)Exhaust Gas Recirculation Solenoid Valve
(6)Crankshaft Position Sensor
(7)Boost Pressure Actuator
Figure 6:

Engine Harness 2.0L (3 of 3)
Object Number: 1864917 Size: MF
(1)Fuel Rail Pressure Sensor
(2)Boost Pressure Sensor
(3)Camshaft Position Sensor (CMP)
(4)Throttle Plate Actuator
(5)Starter Solenoid
(6)Fuel Injection Pump
(7)Generator
(8)Engine Coolant Temperature (ECT) Sensor
Figure 7:

Engine Harness 2.5L (1 of 3)
Object Number: 1864918 Size: MF
(1)Battery
(2)Engine Control Module (ECM)
(3)Fuse Block - Underhood
Figure 8:

Engine Harness 2.5L (2 of 3)
Object Number: 1864919 Size: MF
(1)Injector 1
(2)Injector 2
(3)Injector 3
(4)Injector 4
(5)Injector 5
(6)Injector 6
(7)Starter Motor
(8)Knock Sensor - Bank 2
(9)G106
(10)G103
(11)G104
(12)X106
(13)Knock Sensor - Bank 1
(14)X107
(15)Generator
Figure 9:

Engine Harness 2.5L (3 of 3)
Object Number: 1864920 Size: MF
(1)Electronic Throttle Control (ETC)
(2)Exhaust Gas Recirculation (EGR) Solenoid Valve
(3)EVAP Canister Purge Solenoid Valve
(4)Heated Oxygen Sensor (HO2S) 1 - Bank 2
Figure 10:

Engine Harness (MH7/MH8)
Object Number: 2028650 Size: MF
(1)Automatic Transmission Connector
Figure 11:

Front Door Harness
Object Number: 1864929 Size: MF
(1)Power Window Motor
(2)Outside Rearview Mirror
(3)Power Window Switch
(4)Door Tamper Switch
(5)Door Contact Switch
(6)Door Lock Actuator
(7)Folding Mirror Unit
(8)Step Lamp
(9)Speaker
(10)X351/X352
Figure 12:

Front Harness
Object Number: 1864913 Size: MF
(1)X1
(2)Turn Signal Lamp - Left
(3)Hood Contact Switch
(4)Headlamp - Left
(5)Headlamp - Right
(6)Turn Signal Lamp - Right
(7)Horn
(8)A/C Compressor
(9)Washer Pump Motor
(10)Washer Fluid Switch
(11)Auxiliary Cooling Fan
(12)Main Cooling Fan
(13)Theft Alarm
Figure 13:

Fuel Pump Harness
Object Number: 1864931 Size: MF
(1)Fuel Tank
(2)X404
(3)Fuel Pump
Figure 14:

I/P Harness Routing (LHD)
Object Number: 2018484 Size: MF
(1)Speaker - Left
(2)I/P Cluster
(3)X210
(4)DLC
(5)Radio
(6)Speaker - Right
(7)X213
(8)X214
(9)X216
(10)I/P Compartment Lamp
(11)X211
(12)I/P Compartment Lamp Switch
(13)JX203
(14)JX202
(15)X216
(16)Auxiliary Power Outlet
(17)Shift Selector Lever
(18)PRNDL Lamp (M98)
(19)Parking Brake Switch
(20)Automatic Transmission Control Indicator (MH7/MH8)
(21)Multifunction Switch
(22)Body Control Module (BCM) (ISU)
(23)X202
(24)X203
(25)X204
(26)X205
(27)Fuse Block - I/P
Figure 15:

I/P Harness Routing (RHD)
Object Number: 1864912 Size: MF
(1)Speaker - Left
(2) Clock
(3)Radio
(4)Hazard Switch
(5)Instrument Panel Cluster (IPC)
(6)Speaker - Right
(7)Fuse Block - I/P
(8)X202, X204, X205
(9)PRNDL Lamp (M98)
(10)Shift Selector Lever
(11)Winter Mode Switch (M98) / Automatic Transmission Control Indicator (MH7/MH8)
(12)Park Brake Switch
(13)Auxiliary Power Outlet
(14)X211
(15)X203, X213, X214, X216
Figure 16:

Rear Door Harness
Object Number: 1864930 Size: MF
(1)Door Lock Actuator
(2)Door Contact Switch
(3)Power Window Switch
(4)Power Window Motor
(5)X371/X381
(6)Speaker
Figure 17:

Roof Harness
Object Number: 1864932 Size: MF
(1)Center Room Lamp
(2)Sun Visor Lamp - RH
(3)Inside Rearview Mirror
(4)Front Room Lamp/Sunroof Switch
(5)Vanity Lamp - Left
(6)X206
Figure 18:

SIR Harness LHD
Object Number: 1864925 Size: MF
(1)Side Impact Sensor - Left
(2)Seat Belt Pretensioner - Left
(3)Front Airbag - Driver
(4)X208
(5)Front Airbag - Passenger
(6) G203
(7)Side Airbag - Passenger
(8)SDM
(9)Side Airbag - Driver
Figure 19:

SIR Harness RHD
Object Number: 1864922 Size: MF
(1)Side Impact Sensor - LH
(2)Seat Belt Pretensioner - LH
(3)Front Airbag - Passenger
(4)X208
(5)Front Airbag - Driver
(6) G203
(7)Side Airbag - Driver
(8)SDM
(9)Side Airbag - Passenger
Figure 20:

TCM Harness LHD
Object Number: 1864924 Size: MF
(1)Park/Neutral Position (PNP) Switch
(2)Output Speed Sensor (OSS)
(3)Transmission Control Module (TCM)
(4)X207
(5)Input Speed Sensor (ISS)
(6) Automatic Transaxle
Figure 21:

TCM Harness RHD
Object Number: 1864921 Size: MF
(1)Park/Neutral Position (PNP) Switch
(2)Output Speed Sensor (OSS)
(3)X207
(4)Input Speed Sensor (ISS)
(5)Automatic Transaxle
Figure 22:

Trunk Harness
Object Number: 1864927 Size: MF
(1)Tail Lamp - LH
(2)X401
(3)Object Detection Module
(4)Tail Lamp - RH
Figure 23:

Trunk Lid Harness
Object Number: 1864928 Size: MF
(1)X402
(2)Backup Lamp - LH
(3)License Lamp
(4)Backup Lamp - RH
(5)Trunk Latch
(6)Trunk Tamper Switch