What does code P1345 mean?

Q: What does code P1345 mean?

No CMP or SGC Signal. P1345 on Mazda vehicles means the powertrain control module (PCM) has lost the signal from the camshaft position (CMP) sensor or the signal from the crankshaft position sensor, which Mazda refers to as the SGC signal. The PCM sets this code when it cannot see a reliable cam or crank reference pulse while the engine is running, so it cannot accurately sequence fuel injection and ignition timing.

DTC codes / Mazda codes / P1345

P1345 · MazdaNo CMP or SGC Signal

P1345 on Mazda vehicles means the powertrain control module (PCM) has lost the signal from the camshaft position (CMP) sensor or the signal from the crankshaft position sensor, which Mazda refers to as the SGC signal. The PCM sets this code when it cannot see a reliable cam or crank reference pulse while the engine is running, so it cannot accurately sequence fuel injection and ignition timing.

SystemPowertrain

Code typeMazda specific

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

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