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Home >> Mazda >> 2003 >> MX-5 Miata Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1621: Code Word Mismatch After Engine Cranking >> Detection Condition

Detection Condition

DTC is set when immobilizer unit code word does not match code stored in Powertrain Control Module (PCM).

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