Test 4: Both Windows Inoperative From Master Switch Assembly Only

Disconnect master switch assembly. Turn ignition switch to RUN position. Using a test light connected to ground, backprobe master switch assembly connector terminal "F" (Brown wire). If test light illuminates, go to step 3 . If test light does not illuminate, go to next step.
Repair open in Brown wire between master switch assembly connector terminal "F" and splice S208. See WIRING DIAGRAMS .
Check for poor connection at master switch assembly connector terminal "F". If connection is okay, replace master switch assembly. See WINDOW SWITCH under REMOVAL & INSTALLATION.