Rain Tracker Model: RT-50A
Vehicle-Specific Installation Instructions

The instructions included with the product tell you how to install a Rain Tracker.  This page gives special vehicle-specific information.  Print this page using your browser's print function.

Application Vehicles
     These instructions apply to these vehicles, which all have similar wiper systems:

GMC-TRUCK VAN- FULL-SIZE 82 - 91

Wiring Diagrams and Drawings:

1985 GMC Full-Size Van- Drawing applies to all application vehicles listed above. Print this.
RT-50A - GSS (Ground Side Switching)- Included with product, so print only if needed.
Troubleshooting procedure- Print out if needed.

Wire colors used in this vehicle:

+12V - LOCATE
GROUND - BLK
FAST - PPL
SLOW - GRY

Special Rain Tracker Installation Notes for this vehicle:

Write the wire colors of the vehicle on the GSS drawing, and follow that
when you wire up the Rain Tracker. Use the factory drawing as a reference
to help you find the wires. Some models and years may vary slightly in wire colors.
Factory drawings can be wrong, so, confirm wire colors with a multimeter.

All wiper system wires, except +12V, are available at the wiper switch. They
can usually be accessed by removing one or two access panels (Kick Panels) and,
possibly, the shrouds surrounding the steering column.

FIND +12V
For Rain Tracker power (+12V), locate a source of power hot in accessory
or run. Power source should be min. 12-16ga. wire on a 15-25A circuit. This
can be one of the +12V sources as shown on the diagram, or some other accessory
source. The cigarette lighter is often a good +12V source.


Hydreon Corporation provides vehicle-specific installation information for over 5000 differen models of cars, vans, SUV's, and light trucks.  This page generated by vehicle data file name: gmc_truck_van_full_size_82-91.veh

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