1. Fuse Issues: Check the fuse box and locate the fuse responsible for the turn signals. If the fuse is blown, replace it with a fuse of the appropriate amperage. Refer to your Saturn's owner's manual for the specific fuse location and amperage requirement.
2. Bulb Burnouts: Turn signal bulbs may burn out over time. Inspect the turn signal bulbs to make sure they are not burned out. If a bulb is burned out, replace it with a new one of the appropriate wattage.
3. Switch Malfunction: The turn signal switch, also known as the combination switch, could be faulty. This switch is responsible for controlling the activation of the turn signals. If the switch is defective, it can prevent the turn signals from working properly.
4. Wiring Problems: Faulty wiring or loose connections can disrupt the power supply to the turn signals. Check the wiring associated with the turn signals for any visible damage or loose connections. Repair or replace damaged wires as needed.
5. Multi-Function Switch: In some Saturn models, the turn signals are controlled by the multi-function switch on the steering column. If this switch is malfunctioning, it can disrupt the function of the turn signals.
6. Turn Signal Relay: The turn signal relay is an electrical component responsible for sending power to the turn signals. A faulty relay could lead to turn signal malfunctions.
If you have checked all of the above potential causes and the turn signals still don't work, it's recommended to have the electrical system or lighting system of your Saturn diagnosed by a qualified mechanic or at a trusted auto repair facility. Some of these issues may require electrical testing and further inspection for an accurate diagnosis.