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Home >> Mazda >> 2000 >> MPV DX >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P1623: Code Word Or Key Id Number Read/Write Error In Pcm >> Possible Cause
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Possible Cause

WARNING: This page is about a different car, the 2003 Mazda MPV and 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

PCM internal EEPROM damaged.

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