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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (6.7L Diesel - DTCS P2000 To U1601 - 2500 & 3500) >> Diagnosis and Testing >> U011A-Lost Communication With Exhaust Gas Sensor Module >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
(F960) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
(F960) FUSED IGNITION SWITCH OUTPUT CIRCUIT SHORTED TO GROUND
(Z915) SMART O2 SENSOR MODULE GROUND CIRCUIT OPEN
J1939 DATALINK (+) CIRCUIT OPEN
J1939 DATALINK (-) CIRCUIT OPEN
J1939 DATALINK (+) CIRCUIT SHORTED TO GROUND
J1939 DATALINK (-) CIRCUIT SHORTED TO GROUND
J1939 DATALINK (+) CIRCUIT SHORTED TO ANOTHER CIRCUIT
J1939 DATALINK (-) CIRCUIT SHORTED TO ANOTHER CIRCUIT
J1939 DATALINK COMPONENT INTERNALLY SHORTED
SMART O2 SENSOR MODULE
POWERTRAIN CONTROL MODULE

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L  .