Clearing Trouble Codes

EFI Fuse:

- After repair of the trouble areas, the diagnostic code retained in the ECU memory must be cleared out by removing the EFI fuse (2OA) from J/B No. 2 for 10 seconds or more, with the ignition switch OFF.

HINT: Cancellation can also be done by removing the battery negative (-) terminal, but other memory systems (clock, etc.) will also be cancelled out.

- If it is necessary to work on engine components requiring removal of the battery terminal, a check must first be made to see if a diagnostic code has been recorded.

- After cancellation, road test the vehicle to check that a normal code is now read on the "CHECK" engine warning light.

- If the same diagnostic code appears, it indicates that the trouble area has not been repaired thoroughly.