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Home >> Jeep >> 2024 >> Wagoneer Carbide, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (3.0L - DTCS P2316-00 To P25DE-00) >> DTC Troubleshooting >> P2420-00-EVAP System Switching Valve "A" Control Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2024 Jeep Grand Wagoneer L and 2024 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
VBV CONTROL CIRCUIT SHORTED TO ANOTHER VOLTAGE SUPPLY
VENT BLOCKER VALVE (VBV) - TOO LITTLE INTERNAL RESISTANCE
POWERTRAIN CONTROL MODULE (PCM)

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

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