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Home >> Mazda >> 2000 >> MPV ES >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1309: Pcm Internal Malfunction >> Condition

DTC P1309: Pcm Internal Malfunction: Condition

DTC is set when misfire monitoring circuit sends an extraordinary signal to PCM. Possible causes are:

Internal PCM circuit damaged.

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