Theory Of Operation
WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
The Exhaust Gas Recirculation (EGR) Cooler Bypass Valve Actuator is used to redirect the EGR gases around the cooler when the engine is under certain operating conditions. The EGR Cooler Bypass Valve Actuator is an electronic actuator that controls vacuum supply to the EGR Cooler. It is located underneath the Intake Manifold Assembly. The Powertrain Control Module (PCM) will light a MIL lamp after this monitor runs and fails in two consecutive drive cycles. The PCM will turn off the MIL lamp after the diagnostic passes in four consecutive drive cycles.