GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Optra 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Antilock Brake System Schematics
Figure 1:

Warning Lamps, Serial Data
Object Number: 2158690 Size: FS
Figure 2:

Power, Ground, Wheel Speed Sensors
Object Number: 2158695 Size: FS