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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 953 (5.7L CNG - DTCS P2127 To U147B - 2500 Hd) >> Diagnosis And Testing >> P2504-Charging System Output High >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
OPEN OR HIGH RESISTANCE BETWEEN THE ALTERNATOR B+ TERMINAL AND THE PDC B+ TERMINAL
RESISTANCE IN THE FUSED B+ CIRCUIT BETWEEN THE PDC AND THE PCM
POWER DISTRIBUTION CENTER
ALTERNATOR
POWERTRAIN CONTROL MODULE (PCM)

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