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Reconnect the negative battery terminal.•
Plug the 30 pin GM harness into the vehicle side harness, and plug the aftermarket radio •
harness into the aftermarket radio.
Cycle the key by turning the ignition on then back off, then back on again to test the radio. •
PROGRAMMING SWC
Turn on the ignition•
The LED will begin to blink rapidly•
The following buttons must be pressed in the following order:
Volume up, Seek up, Band, PTT/Mute, Fan up (Each button press will be acknowledged with
the LED on steadily)
If any of the above buttons are not present , substitute with Volume up. For example, if a
vehicle does not Band and Fan up, you would press Volume up, Seek up, Volume up, PTT/
MUTE, Volume up.
After you have pressed ve buttons, the LED will turn off, then blink a number of times
according to the detected vehicle type. If SWC does not recognize, please note the number of
blinks and contact tech support.
If you press the buttons incorrectly, turn off the ignition and repeat the above steps. If you do
it wrong, it can be done again by pressing the volume up button for 15 seconds until the LED
goes into fast blink mode again.
TESTING THE GMLAN11-100
Turn the ignition on, and then turn the aftermarket radio on. •
Push the Onstar button, the radio should turn off (radio will mute if mute wire is •
connected) and you should hear Onstar.
Push the Onstar cancel button and the radio should come back on.•
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