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Home >> Mazda >> 2002 >> MX-5 Miata Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1622: Key Id Number Mismatch >> Detection Condition
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Detection Condition

DTC is set when ignition key identification numbers does not match numbers stored in immobilizer unit and Powertrain Control Module (PCM) after immobilizer unit is replaced and system is reprogrammed.