Conditions for Running the DTCDTCs P0606, P1518, P2108 are not set. The ignition is ON. The communications between the throttle actuator control (TAC) module and the powertrain control module (PCM) must be valid. Conditions for Setting the DTCTwo APP sensors are out of range or both APP sensors disagree with each other.Action Taken When the DTC SetsThe control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails. The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame and/or the Failure Records. The control module commands the TAC system to operate in the Reduced Engine Power mode. A message center or an indicator displays Reduced Engine Power. Under certain conditions the control module commands the engine
