[Home | Mail Archive | Join the mail archive | Photo Gallery ]

Mazda Rotary Pickup Forum
you are logged in as
profile | register | faq | search (active threads) | memberlist
Sponsored by:
Index > Body Exterior > Thread: Turn Signals that just stay on
Thread: Turn Signals that just stay on
admin


Administrator
Posts: 444
posted January 20, 2003 03:11 PM

Turn Signals that just stay on

I noticed the other day that my turn signals are no longer blinking, they come one, go off, then come on and stay on until I turn them off...

I suppose the little box under the dash need some restoration, any tips on what to look for, or how to repair it?

        Click here to send admin an AIM message. 
View IP (Administrators only)
roaddancer


Hauling
Posts: 127
posted January 20, 2003 03:57 PM

As always, check and clean all the connectors, and make sure the grounds are good, as a bad ground on DC circuits can inject the most amusing behavior, but it is most likely a bad flasher. It should be serviceable, and cheap. Have you added or removed any lights in the circuit? May have an overload. Is everything actually coming on? A bad ground in one location may not keep it from lighting, as it may ground out through the running light circuit, but it could cause some amusing light patterns between running lights on or off.
Good luck! Old wiring is such fun!

       
View IP (Administrators only)
wankel_dreams


Redlining
Posts: 293
posted January 20, 2003 04:19 PM

I had a similar problem. mine would flash on one time, then stay off....for weeks.

I took both relay assemblies apart and filed the contacts. You have to do both, because the way they are wired, they are both used for blinkers. After all the years, there was about 1/8 inch of an irregular nipple on one side, and a corresponding pit on the other. After filing them, they work great.

i can't remember which one this is

____________
74 wankel panther
77 REPU
79 rx7
89 Vert

        Click here to visit wankel_dreams's homepage. 
View IP (Administrators only)
chuyler1


Hauling
Posts: 140
posted April 12, 2012 01:30 PM

I'm running into this exact problem. The turn signals work for a few blinks then stick on. If I fiddle with the control I can sometimes get them to blink a few more times but usually it takes until the next drive for them to work.

I just finished filing all the contacts for the relays in the central control unit (black plastic box) and the turn signal relay box (metal box). It did not improve the behavior.

Where does this system ground out? I'm wondering if it is building up a charge and cannot release it. I guess I'll poke around some more.


       
View IP (Administrators only)
MAZDAMARK


Hauling
Posts: 139
posted April 12, 2012 01:41 PM

My truck did this when I bought it and it was due to the lights being mis-wired due to the trailer light plug being installed incorrectly... I just messed with which wires went where until everything worked...
____________
94 RX7
89 RX7 GTUs
85 GSLSE
88 323 GTX
1975 REPU

       
View IP (Administrators only)
Chuyler1


Hauling
Posts: 140
posted April 12, 2012 06:19 PM

Great, seeing as my truck is a frame off restoration, that means the bad connection could be anywhere!

       
View IP (Administrators only)
chuyler1


Hauling
Posts: 140
posted April 16, 2012 09:07 AM

I took the easy route and replaced the flasher module with an aftermarket one that is LED-safe. I don't have LED lights but it won't be as sensitive on types of bulbs and ground points. The new relay fit right in the Central Control Unit box. Read my blog post to see how I installed it.
http://www.huyler.net/repu/?p=51

       
View IP (Administrators only)
Xp882


Redlining
Posts: 294
posted April 16, 2012 01:08 PM

Very nice chuyler by chane do you know which relay is for the wipers my wipers only work on slow not fast

        Click here to send xp882 an AIM message. 
View IP (Administrators only)
chuyler1


Hauling
Posts: 140
posted April 16, 2012 02:32 PM

quote:
Very nice chuyler by chane do you know which relay is for the wipers my wipers only work on slow not fast

I want to say that low wipers is top middle and high wipers is top right. You should pull out the unit and use 12v source to test each relay individually. The image below is from the workshop manual and covers which inputs you should connect +12 and ground to in order to verify that each relay is working.

http://www.huyler.net/repu/wp-content/uploads/2012/04/CCU_Description.jpg

I thought mine only worked on slow...but it turned out both leads were so dirty that slow didn't work at all and fast ran very slow.


       
View IP (Administrators only)
Xp882


Redlining
Posts: 294
posted April 16, 2012 04:24 PM

Thanks for the help I'll give it a shot I have a couple extra relays I can use if one is faulty

        Click here to send xp882 an AIM message. 
View IP (Administrators only)
jm1fd


Revvin Up
Posts: 83
posted April 17, 2012 04:53 AM

I just went through the harness on my 1977 to repair some issues, and to remove un-needed wiring (mostly emissions and ignition related), and I can say with certainty that: there is no relay for the wipers. At least not on a 1977.

       
View IP (Administrators only)
chuyler1


Hauling
Posts: 140
posted April 17, 2012 09:07 AM

quote:
I just went through the harness on my 1977 to repair some issues, and to remove un-needed wiring (mostly emissions and ignition related), and I can say with certainty that: there is no relay for the wipers. At least not on a 1977.

Do you not have a black CCU? I went to look for the 1977 shop manual but it isn't listed at this site where I found the 1975 manual...
http://foxed.ca/index.php?page=rx7manual#repu

You absolutely have to have a relay somewhere. Otherwise you'd be sending the full wiper motor amperage through the steering wheel shaft.

       
View IP (Administrators only)
jm1fd


Revvin Up
Posts: 83
posted April 18, 2012 02:28 PM

quote:
quote:
I just went through the harness on my 1977 to repair some issues, and to remove un-needed wiring (mostly emissions and ignition related), and I can say with certainty that: there is no relay for the wipers. At least not on a 1977.

Do you not have a black CCU? I went to look for the 1977 shop manual but it isn't listed at this site where I found the 1975 manual...
http://foxed.ca/index.php?page=rx7manual#repu

You absolutely have to have a relay somewhere. Otherwise you'd be sending the full wiper motor amperage through the steering wheel shaft.


There is no relay. Promise. I saw every wire in that circuit, end to end. The wiring diagrams don't show a relay either.

The amperage of the wiper motor pales in comparison to the other full amperage items in the column such as the headlights and...well...every electrical load on the truck except for the headlights and starter motor comes through the ignition switch.

Looking at the wiring diagrams for the other years, it appears Mazda deleted the CC Unit for 1977. It also appears that they took a screw-it approach to wiring on the 1977s. The harness is far, far less modular than the previous years.

       
View IP (Administrators only)
chuyler1


Hauling
Posts: 140
posted April 18, 2012 02:34 PM

Very interesting...well I guess that means there is less to go wrong, since I had to clean up all my relays and noticed everything is performing much better now, wipers included.


       
View IP (Administrators only)
All times are PST (US)
Post New Topic    Post New Reply
Rate Topic:
Powerd By: BlazeBoard

[Home | Mail Archive | Join the mail archive | Photo Gallery ]
0.019375085830688 seconds processing time