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1979 Ford Bronco/
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Diagram details the power rear window system for a Bronco, including how it works and troubleshooting tips.
Power Rear Window (Bronco Only) How It Works I receives power through luse 10 lor operation of dash-mounted switch only when ignition switch is ON or ACCY positions I power travels through the fuse to the accessory saiety relay I from the relay current travels to a three way swrtch with UP, DOWN and OFF positions located in the instrument panel I a key actuated outside swrtch is located In the tailgate three way switch powered through a fuse link and through connector 222 located on the engine compartment right hand lender apron I the window is raised and lowered by a two way motor upward travel of the window is governed by a limit switch Trouble-Shooting It power tailgate falls to operate . , . I check fuse 10 It tuse checks out OK t t , I operate window With key actuated switch It key actuated switch operates window . . t I check teed to luse 10 I check wire from fuse to to safety relay ll there is power to both input terminals of relay (black wire with green stripes and black wire with white stripe) . . . I check for power at output terminal ol relay I replace relay, it no power Component Accessory SalelE Relay TiGaie winanw egC Cont Switch Rear Window Reg ont Switch r/o Wlnow Limit Swiich TG Power Window Motor Connecmr Cleo: Connector Cl905 Connector C1907 Connector cm l Splice 5211 saline secs Ground mm 38 the tailgate switch is an "always hot" Component Location On inst panel reinlorcerrlent cl brake pedal support inst. Panel near ntr,Ac mntrcls nt-i Side oi tailgate tiey activaledt inside tailgate, ni-l Side ineiae tailgate center Engine Compartment LH Side near dash panel Rear ol venicle, LH lrame elite member Flear oi vehicle in o pillar loiward ol LH rear lamps inside tailgate center Near nil blower motor resistor Near W/S/Washel swllcn Attached lo 'v brace , a, -77, a ,7 We , , , ,-~_._ I From starter lalay Hal at all [lines From Splice SODJ V lsee Page El Hol When lgnlllun Switch new In Any or m size Page 9) SZlI . ID :0 Amps aw "relay output terminal is hot t . . him I check for power at instrument panel I m by control switch W E, his gr am I if there is no power. repairere lrom 7 5403 ' _ , TAiLGATE relay to SW'tCh thoow neouuron it there is power at switch . r . . W I check ior power at each output ' N 9, terminal while operating switch If there Is no power at either or both output terminals I replace control swnch If there is power at control switch output terminals I check lor continuity to key actuated switch I repair wiring and connectors as required It tailgate switch will not operate window, but instrument panel will . , t I check lor power at tailgate mounted switch (key actuated) it there is power , . . I replace the switch If there is no power. . . I repair feed to connector ll neither switch will operate tailgate window . . . I check for binding of rear window glass on run I repair binding before attempting any other trouble-shooting or operating window It the window glass is not binding . . . I test lor continuity across limit switch in closed window position (plunger in) it there is nocontinuity . .. I replace limit switch If there is continuity , . . I repair or replace power Wlndow motor To AWheel Drive lndlcalor lSee Page at Connector Description Hound brown, 3 terrnlnals nectangutan blue. 3 terminals Round brown 3 terrrllrials nectanguian blUWi 2 terrrllrlals w Dlxw phi ugi new wwpow RE umron co ROLSWlT H we, Actualeul TA lLGATE wwogw mm W a YAlLG/lE POWER L Moron
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