Chrysler Repair: blowing fuse on 96 Sebring hazard/turn signal system, fuse block, wiring harnesses


Question
QUESTION: My friend has a '96 Sebring convertible, just changed multifunction switch and flasher because when he use the hazard switch, it blows the fuse for hazards and directionals. All wiring seems to be intacted. Now sitting at the horns of a delemma. Just like to hear your thoughts. Thanks in advanced for any help
Bart

ANSWER: Hi Bart,
I would wonder if there is a short in one of the 6 harnesses or sockets of the 6 bulbs that are involved in this system? You might try removing the bulbs (2 in front, 4 at rear) and see if the fuse still blows.
If not, then try putting the bulbs back in, one at a time, and see if when one of them causes the fuse to blow. It might even be just a shorted bulb for example.
If so, then I can tell you where to check the plugs for shorts in the harness.
Roland
PS Please rate my answer by using the "thank and rate" tab below. Thanks

---------- FOLLOW-UP ----------

QUESTION: OK Roland, we pulled all 6 lights out, pushed hazards switch, it popped the fuse again
Please enlighten us as to where we should look next
Bart

Answer
Hi Bart,
Thanks for trying out my suggestion, and also for the kind rating and nomination.
I am wondering whether the turn signals, parking and brake lights work OK. If so, then the issue is not the wiring harnesses. But if not, tell me which aren't working or are blowing a fuse. Also tell me which fuse is blowing when you try the hazards, and which one when you try the turn signals.
If all the lights work then it has to be a problem with the flasher/multifunction unit, although I know that has been replaced.
If there is something wrong with the turn signals then lets look a the wiring harnesses:
The manual doesn't show any internal wiring of the flasher unit, but does show some of the multifunction switch. And it doesn't tell what to do about a blown fuse. But my suggestion would be to still focus on the wiring from the fuse block under the dash, an the left end of it, that goes to the four corners of the car to see if we can find a dead short in that wiring. The way to do that is to go to the junction block (which is where the fuses are under the dash) and look on the back side of it where you will find 9 plugs. There are two plugs of interest: a white 9-wire/10-pin plug that might be labelled C9, and a black 10-wire/12-pin plug that might be labelled C1. Remove those two plugs and then try the flasher again and if it doesn't blow, then plug in either plug and see if it blows, and if it doesn't unplug that one and plug in the other and see if it blows. You might want to try this with all the bulbs out.
This is strange, but lets keep trying.
Roland