GM Service Manual Online
For 1990-2009 cars only

Turn Signal Lamp Inoperative for Chevrolet Optra 2009

Checks

Action

Check for an inoperative turn signal flasher.

Replace the turn signal flasher.

Check for a faulty turn signal switch.

Replace the turn signal switch.

Check the chassis-to-column connector for an improper connection.

Reconnect the chassis-to-column connector.