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Home >> Mazda >> 2002 >> 626 ES, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 2.5L >> Diagnostic Tests >> DTC P1623: Code Word Or Key Id Number Read/Write Error In Pcm >> Condition
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DTC P1623: Code Word Or Key Id Number Read/Write Error In Pcm: Condition

DTC is set when Powertrain Control Module (PCM) EEPROM is damaged. Possible cause is PCM EEPROM damaged.

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