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Home >> Toyota >> 1984 >> Celica ST, Standard >> Repair and Diagnosis >> Engine Performance >> System >> ECS Engine Control System >> Diagnosis & Testing >> ECS Trouble Code Identification >> Clearing Trouble Codes
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Clearing Trouble Codes

After any repairs are performed, clear ECU memory of all stored trouble codes. To clear memory, turn ignition off and remove appropriate fuse from fuse panel for 30 seconds. See Fig 1. The lower the ambient (outside) temperature, the longer the fuse (fusible link) must be left out. Replace fuse or fusible link and exit diagnostic mode.

Fig 1: Clearing Trouble Codes from ECU Memory The Lower The Ambient Temperature, The Longer The Fuse Or Fusible Link Must Be Left Out.
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