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Home >> Dodge and Ram >> 2009 >> Challenger SE, 42RLE/VLP >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Powertrain Control Module (Pcm) - Electrical Diagnostics - 42RLE >> DTC Troubleshooting >> P1684-Battery Was Disconnected >> Possible Causes

Possible Causes

Possible Causes 
BATTERY WAS DISCONNECTED
PCM WAS REPLACED OR DISCONNECTED
QUICK LEARN WAS PERFORMED
(A919) FUSED B+ CIRCUIT TO PCM OPEN
(Z908 and Z977) GROUND CIRCUIT OPEN

Always perform the 42RLE Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  

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