What does code P1402 mean?

Q: What does code P1402 mean?

EGR System. P1402 on Nissan vehicles indicates that the engine control module (ECM) has detected a fault within the exhaust gas recirculation (EGR) system, typically a malfunction of the EGR valve itself or its control circuit. The ECM monitors the EGR system's performance and sets this code when the expected flow or electrical response does not match commanded values.

DTC codes / Nissan codes / P1402

P1402 · NissanEGR System

P1402 on Nissan vehicles indicates that the engine control module (ECM) has detected a fault within the exhaust gas recirculation (EGR) system, typically a malfunction of the EGR valve itself or its control circuit. The ECM monitors the EGR system's performance and sets this code when the expected flow or electrical response does not match commanded values.

SystemPowertrain

Code typeNissan specific

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

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