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Home >> Mazda >> 2002 >> MX-5 Miata Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1602: Immobilizer Unit-Pcm Communication Line Error >> Detection Condition
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Detection Condition

DTC is set when transmission command from Powertrain Control Module (PCM)to immobilizer unit exceed limit. There is no response from immobilizer unit.

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