Mazda 323/626/929/GLC/MX-6/RX-7 1978-1989

Clearing Codes

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Codes stored within the ECU memory must be erased when repairs are completed. Erasing codes during diagnosis can help you to separate hard (consistent) faults from intermittent malfunctions. To erase stored codes, disconnect the negative battery cable, then depress the brake pedal for at least 10 seconds. After reconnecting the battery cable, check the system for any remaining or newly set codes.

See Figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, and 19



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Fig. Fig. 1: Mazda's Digital Code Checker (No. 49 G018 9A0)



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Fig. Fig. 2: Mazda's Self-Diagnosis Checker (No. 49 H018 9A1)



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Fig. Fig. 3: Diagnostic codes-1985 GLC



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Fig. Fig. 4: Diagnostic codes-1985 626 (gasoline engine)



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Fig. Fig. 5: Diagnostic codes-1985 fuel injected RX-7



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Fig. Fig. 6: Diagnostic codes-1986-87 fuel injected 323



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Fig. Fig. 7: Diagnostic codes-1986-87 626 non-turbo



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Fig. Fig. 8: Diagnostic codes-1986-87 626 turbo



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Fig. Fig. 9: Diagnostic codes-1986-87 RX-7 non-turbo



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Fig. Fig. 10: Diagnostic codes-1986-87 RX-7 turbo



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Fig. Fig. 11: Diagnostic codes-1988-89 323 non-turbo



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Fig. Fig. 12: Diagnostic codes-1988-89 323 turbo



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Fig. Fig. 13: Diagnostic codes-1988-89 626/MX-6 non-turbo



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Fig. Fig. 14: Diagnostic codes-1988-89 626/MX-6 turbo



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Fig. Fig. 15: Diagnostic codes-929



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Fig. Fig. 16: Diagnostic codes-1988 RX-7 non-turbo



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Fig. Fig. 17: Diagnostic codes-1989 RX-7 non-turbo



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Fig. Fig. 18: Diagnostic codes-1988 RX-7 turbo



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Fig. Fig. 19: Diagnostic codes-1989 RX-7 turbo

 
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