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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 601 (3.0L Diesel - DTCS P05EF-00 To P2002-00 - 1500) >> Diagnosis And Testing >> P0683-00-Glow Plug Control Module 1 To Pcm Communication Circuit >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
GENERATOR
LIN BUS CIRCUIT SHORTED TO GROUND
LIN BUS CIRCUIT OPEN/HIGH RESISTANCE
LIN BUS CIRCUIT SHORTED TO VOLTAGE
ASD SUPPLY CIRCUIT OPEN/HIGH RESISTANCE
ASD SUPPLY CIRCUIT SHORT TO GROUND
FUSED B+ CIRCUIT OPEN/HIGH RESISTANCE
FUSED B+ CIRCUIT SHORT TO GROUND
GLOW PLUG MODULE GROUND CIRCUIT OPEN/HIGH RESISTANCE
GLOW PLUG MODULE
POWERTRAIN CONTROL MODULE (PCM)

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