Question

I have a Hyundai Santa Fe with engine code P1405, what is the meaning of the code?

Answer 1

The diagnostic trouble code (DTC) P1405 on your Hyundai Santa Fe indicates a problem with the Exhaust Gas Recirculation (EGR) Temperature Sensor Circuit. This code is triggered when the Engine Control Module (ECM) detects an issue with the EGR temperature sensor's performance or its electrical circuit.

What Does the EGR Temperature Sensor Do?

The EGR temperature sensor monitors the temperature of the exhaust gases being recirculated back into the engine's intake manifold. This information helps the ECM regulate the EGR system for optimal engine performance and emissions control.

P1405 HYUNDAI - Catalyzed Particulate Filter Permanent Regeneration
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