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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0305 To P0452 >> DTC Troubleshooting >> P0404-EGR Position Sensor Performance >> Possible Causes

Possible Causes

Possible Causes
5-VOLT SUPPLY CIRCUIT OPEN OR SHORTED
EXCESSIVE EGR WINDING TEMPERATURE
EGR VALVE ASSEMBLY STICKING
EXHAUST GAS RECIRCULATION (EGR) VALVE ASSEMBLY

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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