What does code P1194 mean?

Q: What does code P1194 mean?

ECM PCM A D Converter. P1194 on Mazda vehicles indicates that the engine control module (ECM) or powertrain control module (PCM) has detected an internal fault in its analog-to-digital (A/D) converter circuit. The A/D converter translates analog sensor voltages into digital signals the computer can process, so this code means the ECM/PCM's own conversion hardware is not functioning reliably.

DTC codes / Mazda codes / P1194

P1194 · MazdaECM PCM A D Converter

P1194 on Mazda vehicles indicates that the engine control module (ECM) or powertrain control module (PCM) has detected an internal fault in its analog-to-digital (A/D) converter circuit. The A/D converter translates analog sensor voltages into digital signals the computer can process, so this code means the ECM/PCM's own conversion hardware is not functioning reliably.

SystemPowertrain

Code typeMazda specific

SeverityMedium

Fix difficultyProfessional

AreaFuel and air metering

Guidance is general and written for Mazda vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.