Tailgate Window Safety Switch
Using a 12 volt test lamp or a voltmeter, place window switch in "UP" position and check "BROWN" lead for current. If current is not present, repair feed circuits. If current is present, close safety switch and check lead at motor. If current is present check motor ground. Motor is grounded through "BLACK" lead at instrument panel switch. If motor is properly grounded and system does not operate, replace motor. If current is not present, replace safety switch.