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Home >> Mazda >> 2001 >> MPV ES >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1621: Code Word Does Not Match After Engine Crank >> Condition
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DTC P1621: Code Word Does Not Match After Engine Crank: Condition

Code word stored in PCM and immobilizer unit does not match. DTC is set when immobilizer system reprogram procedure (code word) was not performed properly after replacing PCM.