my Skoda Octavia dashboard lights are flashing, what does this mean

Solution

1. Preparation

• Gather tools and materials.
• Disconnect the negative battery terminal to ensure safety.
• Tools Required: OBD-II scanner, multimeter, socket set, wire brush for cleaning terminals.

2. Battery and Connections Inspection

• Remove the battery terminals, starting with the negative terminal.
• Clean the battery terminals and connectors with a wire brush to remove corrosion.
• Reconnect the battery terminals securely.

3. Alternator Testing

• Reconnect the battery and start the engine.
• Use a multimeter to measure the voltage at the battery terminals while the engine is running. It should read between 13.5 - 14.5 volts.
• If the voltage is low, inspect the alternator belt for wear and tension.

4. Fuses and Relays Check

• Open the fuse box and inspect all fuses related to the dashboard and electrical components; replace any blown fuses.
• Test relays with a multimeter for continuity and replace if faulty.

5. Ground and Wiring Inspection

• Inspect the ground connections from the battery to the chassis and engine for tightness and corrosion.
• Check wiring harnesses for any signs of fraying, chafing, or disconnection.

6. Ignition Switch Test

• Remove the ignition switch cover.
• Test the ignition switch with a multimeter for continuity in all positions (OFF, ON, START).
• Replace the ignition switch if found defective.