Set Condition:
WARNING: This page is about a different car, the 2011 RAM Pickup. 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.