Set Condition:
WARNING: This page is about a different car, the 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The Powertrain Control Module (PCM) compares the CAC Temperature Sensor reading to a calibrated threshold. The calibrated threshold varies, and is dependant on the reading from the Ambient Air Temperature Sensor. If the CAC Temperature Sensor reading is above the calibrated threshold for a cumulative total of 120 seconds, the PCM determines that the Charge Air Cooler is inefficient. Two trip fault.