Posted 9/26/2016 20:01 (#5550521 - in reply to #5550508) Subject: RE: 1989 Mack superliner. Need wiring Diagrahm
North MS
Not familiar with super but is dimmer turn signal and emergency flashers all on the turn signal? If so have u checked power at the plug? I could not get fuse/relay diagram on mine from Mack and found one online.