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) calculates an estimated turbo speed. The fault is activated when the difference of speed between the Turbo Speed Sensor and the turbo speed estimate is greater than a calibrated value. The fault is also activated if the Turbo Speed Sensor reading goes above a calibrated limit.