P1608 — Mazda — Powertrain Control Module ECM CPU DTC Test Fault

P1608 (Mazda): Powertrain Control Module ECM CPU DTC Test Fault — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

Powertrain Control Module ECM CPU DTC Test Fault. Source catalogue definition; confirm applicability using vehicle service information.

Affected system: Powertrain