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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (6.7L Diesel - DTCS - P21C4 To U1601 - 3500 Cab & Chassis) >> Diagnosis and Testing >> P2228-Barometric Pressure Circuit Low >> Code Description >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
(F857) 5-VOLT SUPPLY CIRCUIT OPEN OR SHORTED TO GROUND
(K616) INLET AIR PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND
(K616) INLET AIR PRESSURE SIGNAL CIRCUIT SHORTED TO THE (K916) SENSOR GROUND CIRCUIT
(K616) INLET AIR PRESSURE SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
INLET TEMPERATURE/PRESSURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L  .