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Installations using Adapter Cable Digital Inputs

If you are using the adapter cable digital inputs in your installation, the 
following additional tools and other items may also be required:

• Crimping Tool
• Multimeter

Fuse Tap

 - Required to 12 V from the fuse panel.

Planning Your Installation

How DriveRight VSS Works

DriveRight VSS obtains vehicle speed data from the vehicle’s built-in 
VSS (vehicle speed sensor) wire. When your car is moving, the speed 
sensor sends a signal to the console. The console uses this signal to cal-
culate vehicle speed, distance traveled, and the rates of acceleration 
and deceleration.

Installation Overview

The procedures below and the wiring diagram on the next page provide 
an overview of DriveRight VSS installation.
1. Connect the harness cable to power, ground, and the VSS wire. 
2. Connect the adapter cable to power, ground, and the digital inputs 

(if using digital inputs).

3. Install the DriveRight console on or near the dashboard.
4. Finish the installation by powering the DriveRight, configuring the 

VSS DIP switch settings, and testing the installation.

5. Calibrate the DriveRight speed readings. Calibration instructions 

are located in the 

DriveRight 600

E

 User’s Guide

.

CAUTION:

Installing a DriveRight VSS can be hazardous to both the installer and to 
the vehicle electrical system. This manual assumes you are aware of the 
inherent dangers of working in and around a vehicle and have a working 
understanding of electricity. If you are uneasy about installing DriveRight, 
please have a qualified professional do the installation. Davis specifically 
disclaims any liability for injury or loss resulting from the installation or use 
of DriveRight.

Planning Considerations

Before you begin, please review the planning considerations listed 
below and think through your installation. A little planning beforehand 
will save you time, frustration, and parts.

Determine the best DriveRight console mounting location

 — 

Knowing the console mounting location will help you decide where 
to connect and route the harness cable and the digital inputs. 

Summary of Contents for 8126VSS

Page 1: ...VSS Installation Guide Product 8126VSS...

Page 2: ...mful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or tele...

Page 3: ...ure thoroughly before starting that procedure Components Your DriveRight VSS installation kit should come with all of the components show below Make sure you have all listed items before proceeding No...

Page 4: ...tion instructions and make sure you have all necessary tools before proceeding with the installation Note Additional tools may be required depending on your specific installation All Installations Ele...

Page 5: ...onsole on or near the dashboard 4 Finish the installation by powering the DriveRight configuring the VSS DIP switch settings and testing the installation 5 Calibrate the DriveRight speed readings Cali...

Page 6: ...input leads if used In many installations Digital Input 1 monitors brake lights and Digital Input 2 monitors headlights Wiring Diagram The diagram below is an example of the DriveRight 600E VSS wiring...

Page 7: ...base model vehicles with manual transmission and no cruise control may not have the VSS module installed Also vehicles manufactured before 1992 may not have the VSS signal Consult the service departme...

Page 8: ...before connecting the ground wire 4 Crimp a spade terminal included with the unit to one end of the black wire Refer to the illustration 5 Connect the spade terminal to the vehicle chassis ground 6 St...

Page 9: ...f working in and around a vehicle and have a working understanding of electricity 1 If you are not using the digital inputs go to Step 6 of this procedure 2 Use an in line splice to con nect the red 1...

Page 10: ...a sun visor Some of the different mounting choices are illustrated below Face of Dashboard Mounting Options Top of Dashboard Mounting Options Sliding Connector Housing Hold cables as shown to connect...

Page 11: ...ote It is not necessary to enter a code in order to perform this test Do not enter a code until you read the user s manual Install Battery 1 Insert the battery into the DriveRight console as shown Con...

Page 12: ...cle and observe the green test LED Note The DriveRIght unit must be plugged in for the LED to flash 4 Refer to the flow chart and adjust the switch settings accordingly 5 Repeat steps 2 and 3 as neces...

Page 13: ...art Use this flow chart to determine the optimum VSS dip switch setting 0 OFF 1 ON Set 1 2 3 4 0 1 0 1 Drive 2 mph Green LED flashing or dimmed Drive 2 mph Green LED flashing or dimmed Yes No Yes No S...

Page 14: ...receiving 12 VDC from the vehicle Make sure the VSS wire is correct If the green test LED of the VSS in line circuit does not flash at low speeds you may not have the correct wire switch 4 must be on...

Page 15: ...PM at 25 mph Min peak to peak amplitude 1 volt at 5 mph Max peak to peak amplitude 25 volts VSS inline circuit Input Impedance 22k Digital Input Specifications Number of digital inputs 2 Input 1 wire...

Page 16: ...so email us for support or visit our website Sorry we are unable to accept collect calls Note Please do not return items for repair without prior authorization 510 732 7814 Monday through Friday 7 00...

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