FixVault
Home
›
Jeep
›
2020
›
Compass Trailhawk
›
Repair and Diagnosis
›
Engine Performance
›
System
›
2.4L - DTCS P0141 To P0600
›
DTC Troubleshooting
›
P0455-EVAP System Large Leak
›
Set Condition
Set Condition
The Powertrain Control Module (PCM) initiates an intrusive test to determine the leak size. During the test the ESIM switch opened before a calibrated period of time, indicating a large leak is present.