Rear indicators/hazards not working.

[CactusInaHat]

Hi everyone, this is my first post. I recently bought a 97 3.0 ranger for some light house work from a friend. The trucks got some issues (I knew going in).

I'm trying to nail down a blinker/hazard issue right now. The rear R/L blinkers do not work. Front blinkers and all other tail/brake/tag/headlights work. I've already replaced the multifunction switch and removed trailer wiring to eliminate those possibilities.

Do the rear blinkers have a ground point which is different from the rest of the rear lights? I'm getting voltage to the G/O and O/B wires in the rear connectors but no lights.

Yes, I checked the bulbs.

It's worth noting the rear trailer wiring was a real hackjob. Vampire connectors everywhere.

 

[Mazda]

Have you checked/replaced the flasher..?

 

[96firephoenix]

Have you checked/replaced the flasher..?

ditto, although the frankenwiring might be more to blame... I can pull the bed harness off my truck before it goes to the boneyard... at least the taillight part... its a 96, but the wiring *should* be the same. I can even cut off the feed line just before the axle if you need it.

 

[CactusInaHat]

Solved it. Turned out to be a combination of things. A chaffed wire in the rear left wiring harness; removed the vampire clips and soldered the wires back together correctly. And, the left bulb holder had a broken contact.

Several problems mascaraing as one.