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still have no turn signals, replaced the flasher unit, checked all fuses, replaced the turn signal switch, checked all bulbs. This problem is driving me crazy!!!!!

Does anyone have a good place to start troubleshooting this problem even more? Im runnin out of ideas here and am trying to locate a wiring diagram for the signals. Also the console blower motor is not working, heated seats arent working, moon roof isnt working, could these problems all be related somehow???????

If anyone has a wiring diagram and could post it or email it to me that woulde certainly help ouyt as well

thanks in advance,

Matt

A good friend will come and bail you out of jail...BUT, a true friend will be sitting next to you saying, "darn...that was fun!"

www.madd.ca

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New turn signal switch INSIDE the steering column? Not the actual turn signal lever?

Which fasher unit did you replace? The silver one?

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Logan,

replaced the flasher switch its self not the controller arm, and i replaced both the four way flasher and the signal flasher.

Matt

A good friend will come and bail you out of jail...BUT, a true friend will be sitting next to you saying, "darn...that was fun!"

www.madd.ca

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No flasher front and rear?

There are 2 flasher units. One is for the 4 way flashers. The other is for turn signals.

The 4 way is a trandional hazard silver can.

Cadillacs use a 'black box' electonic flasher for the standard turn signal. We hate the term 'black box' but we have to deal with it....it is a little black box...

Both have been replaced?

And a new internal steering column switch has been installed? This is a pretty hard job to do. Just trying to verify that info....

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yes all the above work and parts have been replace, my mechanic did the switch in the column tonight and still no signals,

im losin my mind,

Matt

PS:

actually the switch in the steering column works for the horn, but not the signals, not sure if this is important information or not

A good friend will come and bail you out of jail...BUT, a true friend will be sitting next to you saying, "darn...that was fun!"

www.madd.ca

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. . . .  and am trying to locate a wiring diagram for the signals.

But you HAVE the wiring diagram; I gave it to you HERE:

http://caddyinfo.ipbhost.com/index.php?sho...&hl=turn+signal

Regards,

Warren

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There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises

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your right warren, ive been digging into all these electrical probles i completly forgot about that post.

My back seat is ripped out right now to gain access to the relay's in the trunk. any idea which relay it is, there is a ton of them in there along with a million wires. We were unable tonight to isolate the relay for the turn signals.

Matt

A good friend will come and bail you out of jail...BUT, a true friend will be sitting next to you saying, "darn...that was fun!"

www.madd.ca

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Hmmm....he just put the new switch in tonight? ......strange....its about a 3 hour job....

Intermitant brake lights and turn signals....GM product.....look at the turn signal switch inside the steering column...

Here is a picture of one I did on a '97 recently.....not fun..not easy...not a walk in the park....

That is why I question if this work was really done 'tonight'....

The other problem....dont have the 1996 and 1997 wiring diagrams handy...

1997column.jpg

post-3-1122381959_thumb.jpg

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"strange....its about a 3 hour job...." 3 Hours?? Ha, maybe if you hold your tongue just right... Mine kept flapping cuss words, LOL. My 96 Eldo had no signal action on the left side. 4-ways worked, Brake light left side didn't. New bulbs, cleaned sockets, cleaned grounds, relay swapping, still no left side signal action. It was the SWITCH, no if, ands or buts about it, the SWITCH was bad. NEW, doesn't always mean functional.

rek

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why is it so hard to believe that i had my mechanic replace the switch last night?? I was right there with him when he did it, not an easy job at all, but yes it was done, by a close friend, who also happens to be my mechanic.

A good friend will come and bail you out of jail...BUT, a true friend will be sitting next to you saying, "darn...that was fun!"

www.madd.ca

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Ok.....ok.....turn signal switch has been replaced.

Just a FYI.....but I attached a image of the electronic 'black box' flasher unit.

All the issues you are having.....all have fuses in the trunk fuse block except the sunroof. The sunroof may be a unrelated issue.

Have you checked for voltage at the trunk fuse block? Could be a issue with the power feed or harness.

flasherblackbox.gif

post-3-1122399011_thumb.jpg

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Thanks logan,

Is there any way to figure out exactly what relay in the trunk is for the turn signals? Im going back to my mechanics tonight to try again and would like to have as much info as i can.

Thanks again,

Matt

A good friend will come and bail you out of jail...BUT, a true friend will be sitting next to you saying, "darn...that was fun!"

www.madd.ca

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Is there any way to figure out exactly what relay in the trunk is for the turn signals? Im going back to my mechanics tonight to try again and would like to have as much info as i can.

Matt,

Let's not forget that I'm drawing this info from a '95 FSM. Yours *might* be different. However, if your vehicle uses the SAME relay cluster housing (as is likely), the following drawing may help:

http://i7.photobucket.com/albums/y299/WBuc...elayCenter2.jpg

Regards,

Warren

EDIT: File is about 248KB.

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There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises

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Problem is fixed!!!!!,

Culprit was a broken wire, which sends power to about half of the rear fuse block. Replaced the wire and everything is working now, turn signals, sunroof, and console blower motor, and heated seats.

Thanks Warren and everyone else for your help.

Matt

A good friend will come and bail you out of jail...BUT, a true friend will be sitting next to you saying, "darn...that was fun!"

www.madd.ca

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looks like someone before me had the rear seat out, and was playing with the wires back there, and when they put them back in, the one wire got pinched by the rear seat back, guess over time it flexed too much and caused it to brake, thats the only thing i could see that would cause it.

Matt

A good friend will come and bail you out of jail...BUT, a true friend will be sitting next to you saying, "darn...that was fun!"

www.madd.ca

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You are lucky since that was a power feed line. Although I guess the worst that could happen is that you would have burned out a fusible link if it grounded out... Glad you got the signals fixed along with all of the other items...

For future reference, whenever you have a LOT of items out like you did, try to trace each item back on a schematic to a common point, in this instance you had a bunch of items that were all fed from a common point. There is a good lesson to be learned from your experience here... Its very important to have the manual, its GREAT bathroom reading... :lol:

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Problem is fixed!!!!!,

Congratulations! That must feel good. :D

Regards,

Warren

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There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises

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Yeah...I started to think fuse link or some type of harness damage....

Its really, really hard.....to figure out who or whom has done exactly what to an electrical system on the internet.

Please be aware the '96-97 Seville/STS the wiring system is completely different then the '92-95 models. The diagram posted appeared to be from a 1994 model.

The GM electronic service manual is very weak in the area of '96-97 models.

Here is a trick for '96-97 sts models searching diagnostic info with the GM electronic manual......enter 1998 Eldorado....same car.....carried over.......

What I did was print the schmatic for each system (1998 eldo)....everything pointed at the rear fuse block as an issue. Hence the mention to check the power feed to the fuse block.

Question? Dealer could not figure that out? Maybe 30 minutes if the the car was actually here in Nashville!

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At almost $95 an hour shop rate at the local caddy dealer, my STS doesnt hit that floor unless i've exhausted all other means of fixing myself.

(By myself i mean my Big Jay, myself, and our mechanic, at his shop afterhours)

This system Hasn't failed me yet

I actually enjoy troubleshooting these problems and fixing them myself, I view each problem with my caddy as a learnng experience, that allows me to get to know my car better, know what she can and cant do etc...

Hell, It's FUN

Matt

A good friend will come and bail you out of jail...BUT, a true friend will be sitting next to you saying, "darn...that was fun!"

www.madd.ca

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Matt!

I am sorry I wasn't there tonight for the fix.

I was busy mourning my loss :(

I wish I was there, cause I know you and Ed were cussin a storm!

I will see you tomorrow-We'll go see the D'Elegance in the compound.

Big Jay :(

Life is too short to grow up!

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(By myself i mean my Big Jay, myself, and our mechanic, at his shop afterhours)

This system Hasn't failed me yet

Yeah, when I was in my early 20s, I had a "system" too. Like you guys. "Big Mike," "Little Joe," & me.

There wasn't anything that could STOP us in those days. Some of us have grandchildren today. WHOA!

Now go give Big Jay's better half a hug, and find a new DeVille for that crew!

Regards,

Warren

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There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises

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I actually enjoy troubleshooting these problems and fixing them myself, I view each problem with my caddy as a learnng experience, that allows me to get to know my car better, know what she can and cant do etc...

Hell, It's FUN

Matt

Ditto!

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