ISSPRO R72022 User Manual
Lighting harness installation instructions
Form No. IS192 (Rev. A 04/15/2009)
ISSPRO, INC.
2515 N.E. Riverside Way
Post Office Box 11177
Portland, Oregon 97211-1899
503-288-4488
800-888-8065
Fax: 503-249-2999
www.isspro.com
© 2008 ISSPRO, Inc. All Rights Reserved.
LIGHTING HARNESS INSTALLATION
INSTRUCTIONS
Model: R72022
This harness provides the wiring for the power (ignition), dimmer, and ground
connections for EV² gauges, and includes a potentiometer for reducing the
brightness of the gauge lighting.
1
Disconnect batteries. Do not reconnect battery power until
system is fully configured to avoid risk of shock or fire.
Unrolling the harness, you will see that there is a shorter and longer
"branch" of bundled wires.
I C O N K E Y
CAUTION
Tools may be required
Shown in picture
Figure 1. Harness with short and long wires
2
If you want the dimmer button to be accessible, find a suitable location on the dash and mount the
button (drill a 0.40" hole), otherwise it can be tied up under the dash after your preferred lighting
level is set.
3
Connect the shorter length of red wire to a vehicle switched ignition circuit, fused with a maximum
of 3 amps. If the factory fuse for this circuit is over 3 amps, add an inline 3-amp fuse.
4
Connect the shorter length of black wire to a clean ground on the vehicle such as the battery
negative terminal or a factory ground bolt.