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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 831 (3.0L Diesel - DTCS P0203-00 To P0507-00 - 1500) >> Diagnosis And Testing >> P0473-00-Exhaust Pressure Sensor 1 High >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2015 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
EXHAUST PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
EXHAUST PRESSURE SENSOR SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
EXHAUST PRESSURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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