Chevrolet IMPALA 3.9L 2009, Руководство по установке системы CNG, Страница: 24 / 32

© 2009 IMPCO Technologies, Inc. -22- 2009 3.5/3.9L Impala CNG
M. OBD-II Connections and Changeover Switch / Buzzer Installation:
1) Remove the grommet on the passenger
side of the bulkhead. Split the grommet
with a razor blade just enough to push the
Changeover Switch and OBD-II pigtails
through. Push the changeover switch
connectors through the hole, re-install the
grommet and seal it with a little black RTV
Sealant.
2) Make the OBD-II connections illustrated in
the 2009 3.5L Impala P&D Installer’s Wiring
Diagram.
3) The Changeover Switch can be installed in
either a 9/16” diameter hole or a 7/8”
diameter hole. The 7/8” hole is preferable if
the location surface is textured and less
than 3/32” thick. If the 9/16” hole is to be
used, attach the double-sided tape onto the
back of the switch. If the 7/8” hole is to be
used, remove the outer bezel from the
switch.
4) The Changeover Switch installation location
is a somewhat a matter of customer
preference. However, make sure the
Changeover Switch pigtail is long enough
for the customer’s preference. If not, make
suggestions for alternative locations.
5) The Buzzer is installed by installing the
double-sided tape to the back of the buzzer
and sticking to a clean smooth surface on
the back of the dash panel.