- Speed sensor failure
- Faulty wiring or connections
- Circuit board failure
- Instrument cluster failure
Troubleshooting Steps:
1. Check the speed sensor:
- Locate the speed sensor on the transmission.
- Inspect the sensor for damage or debris.
- Disconnect the sensor and check for continuity using a multimeter.
2. Check the wiring and connections:
- Inspect the wiring harness for damage or loose connections.
- Check the connection between the speed sensor and the instrument cluster.
3. Check the circuit board:
- If you have access to the circuit board, inspect it for damage or loose components.
4. Check the instrument cluster:
- If the speedometer is the only instrument not working, the instrument cluster may be faulty.
- Try disconnecting and reconnecting the instrument cluster.
If you are not comfortable performing these checks yourself, it's best to have the vehicle inspected by a qualified mechanic.
