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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1572 (6.7L Diesel - DTCS P0402 To P0653 - 2500 Hd) >> DTC Troubleshooting >> P0472-Exhaust Pressure Sensor 1 Low >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
POSSIBLE CAUSES
5-VOLT SUPPLY CIRCUIT OPEN/HIGH RESISTANCE
5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
EXHAUST PRESSURE SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
EXHAUST PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND
EXHAUST PRESSURE SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT
EXHAUST MANIFOLD PRESSURE (EMP) SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always Perform The PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE Before Proceeding. Refer To  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .