[OldBull]

My 88 3.0 turn signals (all of 'em). bsck up lights and defogger don't work. But Hazard flasher lights , brake, & tail lights are fine. Bulbs & fuses ok. There is juice to the defogger switch in dash. & when I tap the multi switch direction select, the brake lights dim so I can at least emulate rear turn signals. Screwy.

Any idea on what could be wrong?

 

[qwertz9586]

I would say the MFS is malfunctioning. It's probably best to replace it or take it apart and clean the contacts.

About the reverse lights, maybe the switch on the tranny is bad.

 

[OldBull]

Thanks
I'm on my third multi switch, but will clean it and see.

Some new infor, thanks to the people who post diagrams here.
1) My Rear defogger has only one hot line to the switch, but according to diagram it is supposed to have 2, one to a fuse (#6) and one to a fuse link.
2) Turn signals and reverse lights also are supposed to get juice from fuse #6 according to diagram.

But my fuses are OK...So I'm think;ing fuse slot #6 is the problem but I have no idea what the problem could be or how to fix it.

Any ideas?

 

[OldBull]

socket 5 was loose. Got it.
fixed at last