The following are known Action Replay Codes for Star Wars Episode I: Racer on Nintendo 64 (N64).

Device Compatibility: Action Replay & GameShark

Open All Tracks
8111CB08 FFFF
8111C80A FFFF

Infinite Truguts
8111CB1A FFFF

1 Lap Race
81121CAA 0002

All Races Finished First
8111CB0C 3FFF
8111CB0E 3FFF
8111CB10 3FFF
8111CB12 00FF

Open All Characters
8111CB14 007D
8111CB16 FFFF

One Lap Race/Finish 1st
E4171B13
00000002

Lots of Truguts
F88995EB
0000270F