does anyone have a test for the multi-function switch?

 

What kind of problems are you having with yours - the wipers? head lights (brights)? turn signals?

 

I took mine out and tried another one. First one was out of a Mustang, it almost worked but didn't have the flashers built into it, so the brake lights wouldn't work. Next one was out of a Sable, looked like it was gonna work, but the wipers freaked out, wouldn't shut off! A new one was 170 bucks, (Ouch!) so I didn't buy it, just cleaned all my connections. My problem was the left turn/brakelight wouldn't work. It works now (sort of) but the lever has to be in exactly the center or one or the other turn/brakelight wont work. As Rock asked, what problem(s)are you having? -TD

 

Drop me an email, I have it scanned.

 

rock and tiger,
my turn signals don't work.
i didnt know they didnt work until somebody gave me the finger. i have been using the bicyclists method for signaling a turn, especially with the big rigs right behind me on the freeway.

ken,
will do.

thanks

 

well, the switch passed the the test ken gave me so i guess i am looking for problems in the wiring. where do i begin. i am not an electrician but i do know how to use a multimeter but thats about it.

btw, i only checked the turn signal part of the switch since the signals are the only problem, should i check the rest of the switch?

 

Do all 4 signals not work? (Did that make any sense?) Do the emergency flashers work? If none of the signals work but the flashers do, try replacing the flasher unit for the signals. -TD

 

Glad to hear you could read the diagram, sorry to hear you still have a problem.

Don't take this wrong but hows the fuse?

1989 wiring colors, do you have B+ at the p/o wire @ the flasher, do you have power at the lb wire @ the MFS?

 

tiger,
no signals work, but the flashers do. is the flasher unit that cylinder looking thing hooked in the fuse panel under the dash? if not where is it and what does it look like?by the way, i checked the resistance of the circuit breakers under the dash an they had resistance but the cylinder one (advanceautoparts.com calls it a flasher) had no resistance. is it suppose to?

ken,
fuses are all good, those were the first things checked.

"do you have B+ at the p/o wire @ the flasher, do you have power at the lb wire @ the MFS?"

not sure what you are saying.

 

Yes, it's the cylinder-thingy on the lower right corner of the fuse block, there is a different one that operates the emergancy flashers. I've never checked one for resistance, I suppose there could be a little. Does it have continuity through it? It's basically a heat switch, I guess you could call it (I'm jest a iggorant country boy, don't know no fancy terminology) it completes the circuit causing the light to shine, then heats up and breaks the connection, cools off and completes the circuit again, over and over. Or something like that, anyway. Easy enough to plug another one in there and try it, it's a simple two-contact flasher unit, pretty universal. You could yank a known good one out of another vehicle to try it. -TD

 

Sorry for the confusion.

Based on my 1989 wiring diagram you should have battery power at the pink/orange wire running to the flasher and at the light blue wire at the multifunction switch.

 

Check for a good ground. Based on my boat and trailer experience, this is the problem 90% of the time. I would check the flasher as well. Is it both front and rear or - one or the the other.

 

well it turned out to be the flasher. all is well now.

thanks guys for helping me out!

 

excellente. Glad you found it.