Without Scan Tool

A: OPERATION
1. WITHOUT SUBARU SELECT MONITOR
Current trouble codes shown on the display are cleared by turning the ignition switch OFF after conducting the on-board diagnostics operation. Previous trouble codes, however, cannot be cleared since they are stored in the TCM memory, which is operating on the back-up power supply. These trouble codes can be cleared by removing the specified fuse (located under the light or left lower position of the instrument panel).
CLEAR MEMORY: Removal of No. 4 fuse (for at least one minute)
^ The No. 4 fuse is located in the line to the memory back-up power supply of the TCM. Removal of this fuse clears the previous trouble codes stored in the TCM memory.
^ Be sure to remove the No. 4 fuse for at least the specified length of time. Otherwise, trouble codes may not be cleared.
2. WITH SUBARU SELECT MONITOR