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Home >> Lexus >> 1990 >> ES 250 Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Clearing Codes
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Clearing Codes

Turn ignition off. Remove EFI fuse (20A) for at least 10 seconds. EFI fuse is located in fuse block, next to battery. Codes can also be cleared by disconnecting negative battery cable.

NOTE: When disconnecting negative battery cable to clear codes, remember to reset clock and radio memory. After clearing codes, ensure a normal code is shown on CHECK engine light.