Checking/Clearing Diagnostic Codes

WARNING: This page is about a different car, the 2014 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.

Checking diagnostic codes (with the SSM3)
1. Turn the ignition switch to OFF.
2. Connect the SSM3 to the DLC3.
3. Turn the ignition to IG ON and use the SSM3 display to select [Each System Check] →[Integ. unit mode] →[Diagnostic Code(s) Display] to bring up the diagnostic code confirmation screen.
4. Check the diagnostic codes.
Delete recorded diagnostic codes (with the SSM3).
1. Turn the ignition switch to OFF.
2. Connect the SSM3 to the DLC3.
3. Turn the ignition to IG ON and use the SSM3 display to select [Each System Check] →[Integ. unit mode] →[Clear Memory].
4. Select [Deletion] to delete the diagnostic codes.
  CAUTION:
  - If deletion is not possible, retry it after turning the ignition to IG OFF and then on again.
  - Do not use the SSM3 to delete diagnostic codes until the cause of the trouble has been identified.