Installing the GMOS-LAN-08
With the key in the off position:
• Connect the 16-pin harness with stripped leads, and the GMOS-LAN-08
harness, into the interface.
• Connect the GMOS-LAN-08 harness to the wiring harness in the vehicle.
Note: If using the ASWC-1, connect it after you initialize and test the GMOS-
LAN-08, with the key in the off position.
Initializing the GMOS-LAN-08
Attention! If the interface loses power for any reason, the following steps will need
to be performed again. Also, if installing an ASWC-1 connect it after you initialize
and test the interface/radio, with the key in the off position.
• Turn the key (or push-to-start button) to the ignition position and wait until the
radio comes on.
Note: If the radio does not come on within 60 seconds, turn the key to the
off position, disconnect the interface, check all connections, reconnect the
interface, and then try again.
• Turn the key to the off position, and then to the accessory position. Test all
functions of the installation for proper operation, before reassembling the dash.
GMOS-LAN-08
Adjusting the GMOS-LAN-08
OnStar Level Adjustment
• Press the OnStar button to activate it.
• While OnStar is speaking, press the VOLUME UP or VOLUME DOWN button on
the steering wheel to raise or lower the OnStar level.
• If the vehicle does not come equipped with steering wheel controls, locate the
Black/Yellow
wire on the GMOS-LAN-08 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
3
.