One of the executive-level leaders in many larger fire departments is the battalion fire chief. Typically, a battalion fire chief has years of experience in the tasks necessary to the smooth running of a fire department.
The SYNC computer, which Ford calls the Accessory Protocol Interface Module (APIM), is housed separately from the head unit, called the Audio Control Module (ACM), and interfaces with all vehicle audio sources as well as the high-speed and medium-speed vehicle CAN-buses.
The powertrain or engine control module is a powerful computer that manages the engineâs ignition, fuel injection, and emission systems. In some vehicles, it may also control the operation of the automatic transmission and the anti-lock brake system.Symptoms of Wear or Failure. A PCM can be mistakenly replaced when there was actually a defective engine sensor that was overlooked in the initial diagnosis. 2  The terms PCM and ECM/U (engine control module/unit) are commonly used interchangeably.