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Home >> Lexus >> 1994 >> ES 300 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - OBD-II >> Self-Diagnostic System >> Clearing Trouble Codes
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Clearing Trouble Codes

  1. After performing repairs, clear ECM memory of all stored trouble codes and freeze frame data. Trouble codes and freeze frame data may be cleared by using scan tester and scan tester manufacturer's instructions.
    NOTE: If using Lexus Scan Tester, trouble codes and freeze frame data may be cleared by switching from Check Mode to Normal Mode or from Normal Mode to Check Mode.
  2. Trouble codes and freeze frame data may also be cleared by removing EFI (15-amp) fuse from junction block No. 2 located in engine compartment on left front of left inner fender panel.
  3. Trouble codes and freeze frame data may also be cleared by disconnecting negative battery cable. However, other memory functions (clock, radio, alarm, seats, etc.) will be canceled and must be reset.
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