It is a little difficult to list what each Control Model does, because the inputs and outputs on each module aren't always related to the module itself. For example, the front lid release switch (input) is connected to the Vehicle Electrical System Network module, but the release solenoid (output) is connected to the Front control module. The gateway module seems to be the one which sorts out which control units talk to each other via the CAN bus. So I have listed the OUTPUTS on each module, so you can see where the devices get their supply from. FRONT CU All front lights, including Litronic adjusters Front luggage compartment lock Front luggage compartment light Hazard warning lights Horn Cooling fans (via a separate blower control module) NETWORK CU (Vehicle Electrical System) Fuel flap Seat heaters Wipers (inc rain sensors) Washers (screen and lights) Heated rear window Homelink REAR CU Alarm siren and horn Spoiler All rear lights Rear luggage compartment lights (Boxster convertible top) AIR CONDITIONING CU Compressor Air flaps Blower motor ALARM CU Door locks Ignition lock GATEWAY No outputs - signal/control/monitoring only AIRBAG POSIP CU All airbags Seat belt pre-tensioners SEAT MEMORY CU Seat motors PSM CU Control valves Pump PASM CU Shock absorbers TPMS RDK CU No outputs - signal/monitoring only DME CU Engine control outputs TIPTRONIC/PDK CU Gear control AWS CU (Auto weighing system) No outputs - signal/monitoring only PCM, NAVIGATION, PHONE CU Self explanatory, controlled through MOST loop PARK ASSISTANT CU No outputs - signal/monitoring only CORNERING LIGHTS CU Dynamic cornering lights (left/right control)
