GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2004
🢒
Optra
🢒
Engine
🢒
Engine Controls - 1.4L DOHC
🢒 Instrument Cluster Schematics
Figure
1:
Power, Ground and Gages - 1.4L/1.6L
Master Electrical Component List
Power, Ground and Gages - 1.8L/2.0L
Underhood Fuse Block - IP FUSE, DR/LOCK and STOP LAMPS Fuses
I/P Fuse Block - CLSTR, AIR BAG, BCK/UP, and ENG FUSE BOX DRL Fuses
I/P Fuse Block - CLSTR, AIR BAG, BCK/UP, and ENG FUSE BOX DRL Fuses
Underhood Fuse Block - IP FUSE, DR/LOCK and STOP LAMPS Fuses
Vehicle Speed and Input Speed Sensors
Vehicle Speed Sensor (VSS)
Manual Transmission
Power Steering, Shift Program, Air Bag, Seat Belt, Oil Pressure, MIL, ABS, TCS, Parking Brake, and Charging Waring Lamps
Underhood Fuse Block - FUEL PUMP Relay and FUEL PUMP and IGN COIL Fuses
Figure
2:
Power, Ground and Gages - 1.8L/2.0L
Master Electrical Component List
Power Steering, Shift Program, Air Bag, Seat Belt, Oil Pressure, MIL, ABS, TCS, Parking Brake, and Charging Waring Lamps
Power, Ground and Gages - 1.4L/1.6L
Underhood Fuse Block - IP FUSE, DR/LOCK and STOP LAMPS Fuses
I/P Fuse Block - CLSTR, AIR BAG, BCK/UP, and ENG FUSE BOX DRL Fuses
I/P Fuse Block - CLSTR, AIR BAG, BCK/UP, and ENG FUSE BOX DRL Fuses
Underhood Fuse Block - IP FUSE, DR/LOCK and STOP LAMPS Fuses
Vehicle Speed Signal
Vehicle Speed Sensor (VSS)
Manual Transmission
Power Steering, Shift Program, Air Bag, Seat Belt, Oil Pressure, MIL, ABS, TCS, Parking Brake, and Charging Waring Lamps
Underhood Fuse Block - FUEL PUMP Relay and FUEL PUMP and IGN COIL Fuses
Figure
3:
Power Steering, Shift Program, Air Bag, Seat Belt, Oil Pressure, MIL, ABS, TCS, Parking Brake, and Charging Warning Lamps
Master Electrical Component List
I/P Illumination, Door Open and Fog Lamp Indicators
Power, Ground and Gages - 1.8L/2.0L
Variable Effort Steering
Module Power, Ground, Malfunction Indicator Lamp (MIL), Hold Lamp and Serial Data
Power, Ground, Hold Switch and DLC
Power, Ground, DLC, Side Impact Sensors, Front Discriminating Sendors (Duel Firing)
Seat Belts
Module Power, Ground, Serial Data, Malfunction Indicator Lamp (MIL)
Module Power, Ground, Serial Data, Malfunction Indicator Lamp (MIL)
Module Power, Ground, Serial Data, Malfunction Indicator Lamp (MIL)
Module Power, Ground, Serial Data, Malfunction Indicator Lamp (MIL)
Powers, Grounds, Wheel Speed Sensors
Hydraulic Brakes
Starting and Charging
Figure
4:
I/P Illumination, Door Open and Fog Lamp Indicators
Master Electrical Component List
Turn Signal, Hazard, and High Beam Indicators - PRNDL Illumination
Power Steering, Shift Program, Air Bag, Seat Belt, Oil Pressure, MIL, ABS, TCS, Parking Brake, and Charging Waring Lamps
Underhood Fuse Block - IP FUSE, DR/LOCK and STOP LAMPS Fuses
Underhood Fuse Block - LOW BEAM LT, LOW BEAM RT, ILLUM LT, ILLUM RT, and HI BEAM Fuses
Underhood Fuse Block - IP FUSE, DR/LOCK and STOP LAMPS Fuses
Underhood Fuse Block - LOW BEAM LT, LOW BEAM RT, ILLUM LT, ILLUM RT, and HI BEAM Fuses
Turn and Hazard Lamps - Except North America
Turn and Hazard Lamps - North America
Roof Courtesy Lamps
G203
G201
G203
G201
Figure
5:
Turn Signal, Hazard, and High Beam Indicators - PRNDL Illumination
Master Electrical Component List
I/P Illumination, Door Open and Fog Lamp Indicators
Turn and Hazard Lamps - North America
Turn and Hazard Lamps - North America
Headlamps (w/o Daytime Running Lamps (DRL))
G201
Park/Neutral Position (PNP) Switch
Park/Neutral Position (PNP) Switch