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Honda Odyssey have lost all power on the dashboard and lights how do you fix this?

Here are some troubleshooting steps you can try to potentially fix the issue with your Honda Odyssey's dashboard and lights losing power:

1. Check the battery: Ensure that the battery terminals are clean and properly connected. Clean any corrosion with a wire brush and baking soda solution. If the battery is old (typically considered 3 years or older) or has signs of damage, replace it with a new one.

2. Inspect fuses and relays: Locate the fuse box in your Odyssey and check the fuses responsible for the dashboard and lights. Look for any blown fuses and replace them with fuses of the same amperage rating. Additionally, inspect the relays related to these components and ensure they are seated correctly and not damaged.

3. Test the ignition switch: Check if the ignition switch is functioning properly by turning the key in the ignition and observing the dashboard lights. If the lights do not turn on or flicker when the ignition is turned, the ignition switch may be faulty and need replacement.

4. Scan for diagnostic trouble codes (DTCs): Use a diagnostic scan tool or have your vehicle scanned by a professional to identify any underlying electrical issues or malfunctions that could be causing this problem. The DTCs can provide specific fault codes that can help you pinpoint the cause.

5. Check wiring and connections: Inspect the electrical wiring and connections related to the dashboard and lights. Look for loose, damaged, or corroded wiring that may need repair or replacement. Use a multimeter to test continuity and ensure proper electrical flow in the affected circuits.

6. Examine the instrument cluster: If all the above steps do not resolve the issue, there could be a problem within the instrument cluster itself. The cluster may need to be repaired or replaced. In this case, it is recommended to consult a professional or visit an authorized Honda service center.

If any of these steps are beyond your comfort level or expertise, it is best to seek assistance from a qualified automotive technician or take your vehicle to a reputable repair facility for further diagnosis and repairs.