What does code P1412 mean?

Q: What does code P1412 mean?

EGR Differential Pressure Sensor Signal Too Low. P1412 on Volkswagen vehicles means the engine control module (ECM) has detected a signal from the EGR differential pressure sensor that is lower than the expected range for the current operating conditions. The sensor monitors the pressure difference across the exhaust gas recirculation (EGR) valve to verify actual flow, and a low signal typically indicates a blockage, a faulty sensor, or a wiring problem.

DTC codes / Volkswagen codes / P1412

P1412 · VolkswagenEGR Differential Pressure Sensor Signal Too Low

P1412 on Volkswagen vehicles means the engine control module (ECM) has detected a signal from the EGR differential pressure sensor that is lower than the expected range for the current operating conditions. The sensor monitors the pressure difference across the exhaust gas recirculation (EGR) valve to verify actual flow, and a low signal typically indicates a blockage, a faulty sensor, or a wiring problem.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

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