Hello

Unfortunately I have an electronics problem for 3 weeks with my Firebird V6 92er.
First of all I tell you how it happened, maybe who knows what it could be.

In advance, please excuse if some sentences sound a bit bumpy. I'm from Germany, my English is a bit bad for so long texts.


On my last ride, it started to rain when I switched on the wiper I realized that a stick had become tangled between the two wipers. Of course I switched it off immediately, but the engine was already started. Of course, I could stop only a few meters later right, during this time I noticed that there was a very small cloud of smoke from the direction of the steering column. Of course, when I stopped and removed the stick, it was too late. The wiper engine was over and has made no sound since then. Now comes the real mistake, during the entire return trip, the low beam was turned on. When driving out of the parking bay, I pressed the left turn signal and drove on. When I turned this off again, I noticed that the left turn signal in the cockpit was still glowing even though it was switched off. At the next intersection, I had to turn left, turn on turn signal again. This time, the left turn signal in the cockpit lit up permanently, but the car did not blink. Turning off the turn signal lever did not work, the haunting could only be stopped by switching off the low beam. Since then, the left turn signal in the cockpit is constantly glowing, and more recently the one from the high beam when I turn on the low beam. In addition, the left dipped beam is darker than the right, and the car flashing left only in slow motion.


In search of the error, I have already done the following things.
1. All fuses checked, all heal
2. Turn signal relay renewed, no improvement
3. Cable in the interior checked, nothing found
4. Steering wheel removed to the turn signal lever, nothing found
5. Inspected wiring harnesses of the two headlamps in the engine compartment to the bulkhead, all sockets and cables no matter if indicator or headlamps checked. Some cables and connections are not so nice anymore and have to be new but no break etc.
6. Pulled all the pears and let only the two bulbs of the low beam, no change.
7. The left dipped beam disconnected, see because the glow of the turn signal and high beam in the cockpit is gone.
8. Left dipped beam connected, and the right one pulled off nothing works anymore left headlight has no light (are they connected in series?) As soon as I reconnect the right one also goes the left again.

I just can not find the mistake, of course it is now in the works and I will again check everything and check etc.

Thanks for reading and your help greetings

 

That cloud of smoke is the indication that when the wiper motor became jammed , and the fuse that was supposed to be protecting it didn't do it's job , the wiring melted and you now have whats known as a "cross short" in the wiring harness . The common short is , of course , a short circuit to ground (which will usually blow a fuse) , but in your case you have wires shorted to each other (rather than to ground) due to the melted insulation of the overloaded wires allowing several wires to touch each other . You are now left to have to take the wires out of the steering column to find where they melted together ....

 

Thanks for the answer, I have now everything inside expanded to the wiring harness. Have this checked, but find nothing. It is somehow as if bewitched, or I overlook something? Does the V6 have any realis or fuse in the engine compartment? It must be something where wiper motor, turn signals and light come together.

 

And this description , of one headlight not working unless the other one is plugged in , suggests to me that at least part of your problem is a bad ground in the headlight circuit (you may have multiple problems caused by the bit of smoke it let out ?) . The headlights are wired in parallel and not in series , leaving the ground for the left headlight the most likely reason the right has to be plugged in for it to work .

I still think the smoke is the key , since it accompanied the electrical armageddon your poor car appears to have suffered . I know it sounds simplistic , but finding exactly where that smoke came from will go a long way towards finding the fault .

PS , here are your headlight and wiper circuit schematics , in case you don't already have them

 

In Hamburg Germany one says Moin, that means one wishes a good day

I found the mistake, but the mistake was in the engine compartment. A ground cable leading to the left headlight was broken inside, it was not seen from the outside. I only noticed when I came by chance against the cable and the bulb was lighter. In addition, some cable connections to renew because they are not very great.

Here in Germany turn signal and parking lights must be retrofitted, which was made almost 30 years ago but not very professional.

Many thanks for the help.

 

Your Welcome , I'm happy to hear of your success !