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Home >> Mazda >> 2001 >> MX-5 Miata Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> 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 causes are:

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