Owner's Manual

13
Button Learning Procedure Walkthrough
Once installation and version number programming of the SWI-RC has been completed, you must assign a command to each of the
steering wheel’s audio control buttons. Various brands of radios offer different commands that they are able to recognize through
the steering wheel control input. Additionally the type of signal that different brands of radios look for, and the steering wheel
control input connection type, will vary. Because of this, you must set the radio selector switch for the proper setting depending on
what radio is being installed (before supplying power to the interface) and follow the correct learning order that corresponds with
the radio selector switch (see below).
During the learning procedure, each button can only be programmed for one function. This is important to note for applications
where the Preset and Track commands are separated in the SWI-RC programming. Many factory equipped radios will operate
preset functions in tuner mode and the same button will perform track functions from a different mode. Since this is not possible
with the SWI-RC, you must choose to program for either presets or track, but not both (unless there are enough buttons to support
all four functions).
The button learning sequence is fairly basic if you understand how the SWI-RC functions. When you press one of the steering wheel
control audio buttons, the SWI-RC receives a specific value from the steering wheel control wire. Each button will have a value that
is unique. When you enter the learning mode, you are assigning each of these unique values a command by pressing the button that
corresponds to the command while using the button learning order flowchart for that radio. You must assign a function to each
available option in the flowchart. If you do not have a steering wheel command to assign to the function,
pressing the programming button 1 time will skip that position. If you have completed assigning each of the
steering wheel control buttons a command and still have additional commands available in the flowchart, wait
7 seconds and the SWI-RC will time out and exit the programming mode. Remember, PAC does not determine
what commands the radio is capable of accepting, the radio manufacturer does.
Here is an example using an SWI-RC with an Alpine radio where the steering wheel’s audio controls have 5
buttons. For this example, we will program the buttons to perform Volume Up, Volume Down, Source, Track
Up and Track Down. Note the positions of the buttons we are using from the diagram to the right. Positions 1,
2, 6, 7 and 8 are the positions that correspond to the functions that are being programmed. This means that
positions 3, 4 and 5 are going to need to be skipped during the learning procedure. Before starting the button
learning, it is recommended to leave the 3.5 mm jack or blue/yellow SWC wire (whichever your uses)
disconnected, and to have the vehicle running.