694doorbird Posted January 22, 2006 Share Posted January 22, 2006 My cruise quit working shortly after I had the steering wheel off for ignition switch work. This is what I found during my trouble shooting. 1) key off -- 12 volts on the outer brush contact and 0 volts on the inner. 2) key on -- 12 volts on the outer brush contact and 7.5 volts on the inner brush contact. 3) outer brush shows little wear, inner brush looks like the side of a mountain. 4) battery voltage to the speed control amplifer like the manual shows. 5) resistance check is more than 1 OHM. The shop manual says either the brush contacts or the turn signal are bad. 6) Ford dealer says the wire harness is no longer in production. My question is Could I buy new brushes and keep my harness? This is for an '88 F-150 Thanks for any input, Mike Quote Link to comment Share on other sites More sharing options...
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