DTC codes / Chrysler codes / P1404
P1404 on Chrysler vehicles indicates that the powertrain control module has detected a fault within the exhaust gas recirculation (EGR) system, specifically involving the EGR valve circuit or its position feedback. The computer monitors the EGR valve's electrical circuit and expected movement, and when the signal from the valve does not match commanded operation, it stores this code and illuminates the check engine light.
Guidance is general and written for Chrysler vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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