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Home >> Geo >> 1993 >> Prizm Base, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - A-240 "E" Series >> Self-Diagnostic System >> Clearing Fault Codes

Clearing Fault Codes

  1. Once repairs have been performed, fault codes must be cleared from ECU memory. Remove EFI fuse (15-amp) from engine compartment fuse box for 10 seconds to clear memory in ECU.
  2. On MR2, engine compartment fuse box is located on driver's side of engine compartment. On Celica, Corolla and Paseo, engine compartment fuse box is located near the battery in engine compartment.
  3. Fuse may need to be removed for more than 10 seconds in cold ambient temperatures. Reinstall fuse.
NOTE: Fault codes may also be cleared by disconnecting negative battery cable, but memory for electronic components will be also be canceled.
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