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Home >> Jeep >> 2024 >> Grand Cherokee Summit >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 87 (2.0L - DTCS P24B9 To P257F) >> DTC Troubleshooting >> P24BF-EVAP System Leak Detection Pump Vacuum Switching Valve Control Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
ELCM CHANGE-OVER VALVE CONTROL CIRCUIT SHORTED TO ANOTHER VOLTAGE SUPPLY
EVAPORATIVE LEAK CHECK MODULE (ELCM) CHANGE-OVER VALVE - TOO LITTLE INTERNAL RESISTANCE
POWERTRAIN CONTROL MODULE (PCM)

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