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Home >> Jeep >> 2025 >> Grand Cherokee L Summit >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P1115 To P141B >> DTC Troubleshooting >> P1404 EGR Close Position Performance >> Possible Causes

Possible Causes

Possible Causes
CARBON DEPOSITS IN EGR VALVE
EGR VALVE ASSEMBLY STICKING/DRAGGING
HIGH RESISTANCE IN THE EGR VALVE POSITION SIGNAL CIRCUIT
HIGH RESISTANCE IN THE SENSOR GROUND CIRCUIT
EGR VALVE ASSEMBLY

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to:  3.6L - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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