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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 200 (DTCS P0016 To P0128, Intermittent Condition, Checking Exhaust System, Temperature Sensors, Power & Ground Circuits) >> P0111-Intake Air Temperature Sensor Rationality >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2007 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
EXCESSIVE RESISTANCE IN THE (K21) IAT SIGNAL CIRCUIT
EXCESSIVE RESISTANCE IN THE (K900) SENSOR GROUND CIRCUIT
INTAKE AIR TEMPERATURE SENSOR
PCM

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

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