5
REV. 7/6/2018 INSTGMOS-LAN-012
With the key in the off position:
• Connect the 16-pin harness with stripped leads, and the GMOS-LAN-012 harness, into the
interface.
• If an ASWC-1 (sold separately) will be used, do not connect it until the GMOS-LAN-012 is
programmed and fully functional.
Attention!
Do not connect the GMOS-LAN-012 harness to the wiring harness in the vehicle just yet.
INSTALLING THE GMOS-LAN-012
ADJUSTING THE GMOS-LAN-012
For the steps below, the L.E.D. located inside the interface can only be seen while active. The
interface does not need to be opened to see the L.E.D.
1.
Start the vehicle.
2.
Connect the GMOS-LAN-012 harness to the wiring harness in the vehicle. The L.E.D. will
initially be
Green
to indicate the interface is powered.
3.
After a few seconds the L.E.D. will turn on solid
Red
while the interface automatically
programs to the vehicle. The radio will shut off at this point. This process should take 5 to 30
seconds.
4.
After the interface is programmed, the L.E.D. will turn on solid
Green
, and the radio will
come back on, indicating programming was successful.
5.
Test all functions of the installation for proper operation, before reassembling the dash.
6.
If the interface fails to function, refer to “Troubleshooting”.
PROGRAMMING THE GMOS-LAN-012
Audio level adjustment (digital amplified models only):
• With the vehicle and radio turned on, turn the volume up 3/4 of the way.
• With a small flat-blade screwdriver, adjust the potentiometer clockwise to raise the audio
level; counterclockwise to lower the audio level.
• Once at a desired level, audio level adjustment is complete.
Chime level adjustment:
• With the vehicle on, turn it off and leave the keys in ignition. Open the driver’s door; chimes
will be heard.
• Wait 10 seconds, and then with a small screwdriver, turn the potentiometer clockwise to
raise the chime level; counterclockwise to lower the chime level.
• When the chime is at a desired level, remove the keys from the ignition. This will lock the
chime volume at its current level.
OnStar level adjustment:
• Press the OnStar button to activate it.
• While OnStar is speaking, press the VOLUME UP or VOLUME DOWN buttons on the steering
wheel to raise or lower the OnStar level.
• If the vehicle does not come equipped with steering wheel controls, find the
Black/Yellow
wire on the GMOS-LAN-012 harness.
• While OnStar is speaking, tap the
Black/Yellow
wire to ground. Once the OnStar level is set,
it will stay at that level until the
Black/Yellow
wire is tapped to ground again.
