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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 99 (3.6L - DTCS P0463 To P0688) >> DTC Troubleshooting >> P0643-Primary 5-Volt Supply Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
(F855) 5-VOLT SUPPLY SHORTED TO VOLTAGE
(K852) 5-VOLT SUPPLY SHORTED TO VOLTAGE
POWER DISTRIBUTION CENTER (PDC)
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . . 

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