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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 603 (3.0L Diesel - DTCS P2455-00 To U1489-00 - 1500) >> Diagnosis And Testing >> U144F-00-Active Grille Shutter Module 1 Received Implausible Data From Pcm >> 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
GLOW PLUG MODULE
LIN BUS CIRCUIT SHORTED TO GROUND
LIN BUS CIRCUIT OPEN/HIGH RESISTANCE
LIN BUS CIRCUIT SHORTED TO VOLTAGE
FUSED B+ SUPPLY CIRCUIT OPEN/HIGH RESISTANCE
FUSED B+ SUPPLY CIRCUIT SHORT TO GROUND
GROUND CIRCUIT OPEN/HIGH RESISTANCE
ACTIVE GRILL SHUTTER ASSEMBLY
POWERTRAIN CONTROL MODULE (PCM)

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