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Step 1 : Determine Where to Mount the Driveright Display
Knowing where you are going to mount the DriveRight dis-
play can help you make wiring decisions later on. For exam-
ple, if your DriveRight is near the fuse box it will be
convenient to get +12V using a fuse tap connector. However, if
your DriveRight display is on the other side of the vehicle it
may be easier to find a lamp circuit. If the position of the dis-
play is not critical, you may wish to move to the next step,
and decide where to mount it after you've tapped the three
main electrical connections (+12V, Ground, VSS).
NOTE: If you need ideas about where the display might be mounted,
Step 2: Locate and tap your VSS wire
The location of the VSS wire for a given make and model of
vehicle can be found in the Vehicle Technical Information
Guide for Cruise Control book. This book is made available to
authorized DriveRight installers.
If you can not obtain a copy of this book, the information is
available on the World Wide Web at www.rostra.com. Go to
that Web address and click on "Rostra VSS & Tach Information
System". Enter the full year and manufacturer of the vehicle.
The information will specify a "location number" indicating
where the wire can be found, and it will specify the wire color.
NOTE: The web site "www.rostra.com' is owned and operated by Ros-
NOTE: Some base model vehicles with manual transmission and no
Use the inline splice to make the connection to the VSS wire as
shown below. Select red or blue T-Tap disconnect to fit your
VSS wire.
Page 4
look at "Step 6: Mount the DriveRight Display in the Vehicle" on
page 9.
tra Precision Instruments. Rostra does not provide support for
the DriveRight product. If you have trouble finding the VSS
wire, please contact Davis Instruments Technical Support at
510-732-7814.
cruise control may not have the VSS module installed. Also,
vehicles manufactured before 1992 may not have the VSS sig-
nal. Consult the service department at your vehicle dealership if
you are having trouble. If your vehicle has a cable driven speed-
ometer, it may be possible for you to purchase a VSS pulse con-
verter that can be installed to provide the VSS pulse. Otherwise,
you will be required to install the Trip 500 AL which uses the
drive shaft-mounted reed switch sensor.
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