Turn Signal/Hazards Problem
 

first things first, YES I SEARCHED....

my turn signals and hazards don't work.... when i flip the turn signals i hear the clicking noise, tho faster than normal... the hazards don't work either... i got the flasher cpu out of my wrecked 87 turbo II, which i know for a fact works, and i can't get anything still... i took my flasher cpu from my 88 TII apart, and there is no evidence of cold solder points... so i can assume that is not the issue... yes i have checked the fuse.... about 15 times.... yes i have checked all the turn signal bulbs.... that is also definately not the issue... now what? i'm totally lost... its driving me nuts, and i don't want to get a ticket while i drive to texas for not using my flashers... thatd be retarded

maybe yours is bad, and the 87 doesnt work with an 88? my guess..

its the exact same unit, same serial no. etc... it definately works... and i know for a fact it worked in my wrecked 87 TII

hmm...i dunno then, sorry

anyone else got any ideas??

You say lights are fine, fuse is fine.. only thing left is flasher unit.. But you say thats fine too.:confused:

Icemark should be able to help you on this one.

Check the voltage on the turn signal wires coming out of the CPU, one is green/black(left) and the other is... I forget, look it up. :p:

If there is no output, your CPU is bad and needs replacing, resoldering.

If there is an output, should be 12 volts and flashing, but the signals still don't work, then your problem is IN the wiring harness of the car. Look for broken or cut wires and loose connectors.

Good luck.

Steve

another issue thats come up... my dash lights won't work... i checked the fuse and it was blown, so i replaced it with another, and they still don't work... haven't checked to see if the fuse blew or what this time tho... so turn signals and dash lights don't work, tho my shift up light works fine

new CPU or resolder the one you have.

If the CPU is flashing fast, it indicates that at least one turn signal bulb on the direction that is flashing fast is burnt out.

BTW: the flasher board on the CPU is the one that looks like this and is only accessed from the bottom of the CPU:
http://www.mazdamark.com/FCCBB01.JPG

So the faster than normal clicking suggests bad bulbs.

What makes you think the bulbs are not burnt out or the sockets for the bulbs are not damaged?

I happen to have the same problem with my 88 model. I have checked both light bulbs and both are good! The flasher sounds clicking faster in both directions. None of Dash lights works either!! including my clock.

Any suggestions are appreciated.
MCH

How did you check the bulbs? with a meter? or did you just look at the bulb?

Your dash lights not working is probably a burnt out light switch and light switch harness.

Your clock not working is probably a blown fuse or bad clock/warning light panel that needs re-soldering or rebuilding or replacement.

Mark, on topic, or should I say a little to the right...

Is the flasher a thermal style unit? An how does it react to a decreased load such as LED bulbs?

Thanks!

Actually it is electronic, flasher speed is based on resistance to ground.

It wants to see the resistance of two bulbs (per side)... if it sees less than that (say, because of un resisted LEDs) it will "think" that there is a bulb out and flash fast (indicating that you have a bad bulb).

Thanks for the clarification Mark!

I would assume that adding the load resisters as suggested by the LED bulb manufacturer would correct the "fast flash"?