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Home >> Chrysler >> 2005 >> 300 Base >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0330 To P0481 >> Diagnosis And Testing >> P0401-EGR System Performance >> Possible Causes
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Possible Causes

Possible Causes 
(Z904) EGR SOLENOID GROUND CIRCUIT OPEN
(K35) EGR SOLENOID CONTROL CIRCUIT SHORTED TO GROUND
(K35) EGR SOLENOID CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE
(K35) EGR SOLENOID CONTROL CIRCUIT OPEN
EGR SOLENOID ASSEMBLY
PCM

Always perform  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  before proceeding.