Without Scan Tool

ECU Reset Procedure, Fuse Removal:

ECU RESET PROCEDURE
1. Turn the ignition switch OFF.
2. Remove the BACK-UP fuse (10A) from the main relay box for 10 seconds.

NOTE: Disconnecting the BACK-UP fuse also cancels the radio preset stations and clock setting. Make note of the radio presets so you can reset them.

FINAL PROCEDURE (Must be done after troubleshooting)
1. Remove the jumper wire.
2. Reset ECU as noted above.
3. Reset radio station presets.