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Home >> Jeep >> 2025 >> Compass Trailhawk >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P0405 To P042E >> DTC Troubleshooting >> P042E Exhaust Gas RECIRCULATION Control Stuck Open >> Possible Causes

Possible Causes

Possible Causes
EGR VALVE
POWERTRAIN CONTROL MODULE (PCM)

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

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