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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 599 (3.0L Diesel - DTCS P0001-00 To P0263-00 - 1500) >> Diagnosis And Testing >> P0103-00-Mass Air Flow Sensor Circuit High >> 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
MASS AIR FLOW SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
MASS AIR FLOW SENSOR SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
MASS AIR FLOW/INTAKE AIR SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE
MASS AIR FLOW SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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