Wiper woes

[Dalee]

Hello all. Have a standard cab 97XLT. Wipers didn't work when I bought it. I have checked relays ,fuses, replaced motor, linkage, multiswitch. Now they operate on high speed only. I substituted a GEM temporarily. With that they continued to operate on high only. The only difference was that neither the wipers or the washer pump would turn off when activated. Any suggestions?

 

[ericbphoto]

sounds like a problem lnternal to the control module, whether that is separate or part of the GEM in your truck. I don't have wiring diagrams for that year of Ranger. A problem with the interval override circuit could possibly backfeed power out to energize the washer pump.