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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 1912 (6.7L Diesel - DTCS P24B4-00 To U3017-00 - 2500HD & 3500HD) >> DTC Troubleshooting >> U02A3-00-Lost Communication With Pm Sensor >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
LOW BATTERY VOLTAGE
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN/HIGH RESISTANCE
FUSED IGNITION SWITCH OUTPUT CIRCUIT SHORTED TO GROUND
FUSED IGNITION SWITCH OUTPUT CIRCUIT SHORTED TO THE GROUND CIRCUIT
PM SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE
J1939 DATALINK (+) CIRCUIT OPEN/HIGH RESISTANCE
J1939 DATALINK (-) CIRCUIT OPEN/HIGH RESISTANCE
J1939 DATALINK (+) CIRCUIT SHORTED TO VOLTAGE OR GROUND
J1939 DATALINK (-) CIRCUIT SHORTED TO VOLTAGE OR GROUND
J1939 DATALINK (+) CIRCUIT SHORTED TO ANOTHER CIRCUIT
J1939 DATALINK (-) CIRCUIT SHORTED TO ANOTHER CIRCUIT
PARTICULATE MATTER (PM) SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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