How do you disassemble the check engine light?

The check engine light is not a physical component that can be disassembled; rather, it is an indicator on the vehicle's dashboard that signals issues detected by the engine control unit (ECU). To address the underlying problem, you should use an OBD-II scanner to retrieve diagnostic trouble codes (DTCs), which will help identify the issue. Once the problem is resolved, the light can be reset using the scanner or by disconnecting the battery for a short period. If it remains lit after repairs, further diagnostics may be necessary.