1. Check the fuses:
- Open your car's fuse box, usually located in the engine bay or under the dashboard.
- Identify the fuse labeled for the speedometer. It might be labeled "Speedo" or something similar.
- Check if the fuse is blown. If it is, replace it with a new fuse of the same amperage.
2. Inspect the wiring:
- Look for any loose, damaged, or corroded wires near the speedometer and its sensor.
- If you find any, clean them or replace them as necessary.
3. Check the speedometer cable (if applicable):
- Older Accords may have a physical cable that connects the transmission to the speedometer.
- If your Accord has a cable, inspect it for damage or fraying.
- Replace the cable if it's damaged.
4. Test the speedometer sensor:
- The speedometer sensor sends signals to the speedometer.
- To test it, disconnect the sensor and use a multimeter to measure the resistance between the sensor terminals.
- Compare the measurement with the specifications in your Accord's repair manual.
- If the resistance is out of spec, replace the sensor.
5. Inspect the instrument cluster:
- If you've ruled out issues with the fuses, wiring, cable (if applicable), and sensor, the problem might be with the instrument cluster.
- Look for any loose connections or damaged components within the cluster.
- If you find any, repair or replace them accordingly.
6. Seek professional help:
- If you're not comfortable working on automotive electrical systems or if the problem persists after trying the above steps, it's best to seek help from a qualified mechanic or an auto electrician.
Remember that the specific steps may vary slightly for your exact 1997 Accord model. If you have the owner's manual or a repair manual for your vehicle, refer to it for more detailed instructions and specifications related to your Accord.