With Generic Scan Tool

READING THE DIAGNOSTIC TROUBLE CODES
Precautions Before Reading Codes
1. If the battery positive voltage is low, diagnostic trouble codes will not be output. Accordingly, check the battery before carrying out inspection.
2. If the battery is disconnected or if the engine control module connector is disconnected, the diagnostic trouble code memory will be erased. Accordingly, the battery should not be disconnected until reading of the diagnostic trouble codes has been completed.

Extracting the trouble codes with the Mitsubishi MUT-II Scan Tool
CAUTION: Turn the ignition switch OFF before connecting or disconnecting the scan tool.
1. Connect the scan tool to the data link connector.
2. Turn the ignition switch to the ON position.
3. Take a reading of the diagnostic trouble code output.
4. Repair the malfunction location while referring to the Inspection Procedures For Each Diagnostic Trouble Code.
5. Turn the ignition switch to OFF and then back to ON again.
6. Erase the diagnostic trouble codes.
7. Check that the diagnostic trouble code output is normal.