Resetting the Check Engine Light on a 1997 Lincoln Town Car

1. Key off; locate OBD-II port under dash (driver’s side).
2. Connect scan tool; turn key to KOEO (Key On Engine Off).
3. Select “Read Codes” → note them for diagnosis.
4. Select “Clear Codes” / “Erase DTCs.”
5. Turn key off; disconnect tool.
6. Start engine; verify MIL stays off.

Warning: Clearing codes without fixing the underlying fault will cause the light to return, often within a few drive cycles.