LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2008 >> Compass Limited, AWD, Automatic CVT >> Repair and Diagnosis >> External Pages >> Different car >> Section 57 (DTCS P0353 To P0503 (Gas)) >> P0452-EVAP Pressure Switch Stuck Closed >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2009 Jeep Patriot and 2009 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
EVAP PURGE HOSE/TUBE OBSTRUCTION
(K107) ESIM SIGNAL CIRCUIT SHORTED TO GROUND
(K52) EVAP PURGE CONTROL CIRCUIT SHORTED TO GROUND
EVAPORATIVE SYSTEM INTEGRITY MONITOR (ESIM) SWITCH
EVAP PURGE SOLENOID
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .