Thanks! mine has a red wire tapped into it from PO. I presume that’s not supposed to be there
Thank you!
Hello! I was wondering if @cougarsunlimited.net could help me:
I was recently lucky enough to get one of your C8WY-13A366-AS units as well as the C8WY-13A366-AR from a fellow Cougar enthusiast (thank you - you know who you are!) . I also have the C7WY-10B926-AR. My 68 Xr7 had the mechanical sequencer, and I thought for sure when I scored the electronic upgrade all my problems would be solved. But alas, functionally it’s the same challenge (mechanical or your C8WY-13A366-AS unit) so I was wondering if you could help me out?
- When the headlight switch is on, all lights illuminate.
- When I move the turn signal to the right turn position, only the right center lamp blinks. No other lamps blink.
- When I move the turn signal to the left position, no blinking any all.
- No emergency blinkers.
- Brake lights work as they should
I also have a brand new to me (via WCCC), tested used wiring harness running from the dash to the trunk with standard bulbs (no LEDs).
Do you think it’s my turn signal switch or the harness in the steering column?
I feel like I must be missing something obvious for both the mechanical and your electronic sequencer to have the same issues.
The symptoms indicate (at least) three problems:
-
The signal used to put the system into emergency flasher mode (on older Gen3 systems with a metal lid) is a single wire plugged into the emergency flasher relay, light blue wire (514) pin. Verify that this pin has 12V during key-on, turn signal left/right. This signal comes from the turn signal switch red (511B) wire. Note: the C7WY-10B926-AR emergency relay is not used with the C8WY-13A366-AS system unit and must be removed.
-
No left turn turn signal is probably a bad turn signal switch or bad turn signal switch connector pin. Verify that 12V is present on the white wire and orange/green feeding into the system controller in the trunk.
-
Headlight switch illuminates all lights:
If the headlight switch is turning on lights at the brake/turn signal intensity, there is a wiring problem. Do you have new sockets? It is possible that the pins are not aligned correctly and may short the bulb terminals together. This will cause strange feedback. Check each socket by removing the bulb to see if the problem is resolved.
1 Like
Thanks! I will dig into the 3 items and report back!
One last item: check the taillight harness ground. It should have a toothed washer to bite through the paint of the trunk latch support. A poor ground will cause the taillight voltage to ground through the turn signal bulb elements and feedback into the turn signal system.
2 Likes
I spent weeks trying to get the tail light boxes working correctly. It was a long rabbit hole that was solved by removing the whole thing and when I plugged in the new solid state box the planets aligned fully and I moved on to the rest of the long list of things that needed attention.
2 Likes
Finally got the wheel off after much cursing to dig into this. This doesn’t look right. Isn’t the dark green wire supposed to be connected to the emergency relay?
There’s also an open/cut white/blue stripe wire which i think is supposed to be right hand turn signal.
Can’t quite tell what’s hidden under the electrical tape.
I think this harness has been butchered unless ya’ll tell me otherwise.
I’m referencing fig. 42 in group 19 schematics in the shop manual.
Thanks for listening as always!
Yes, the wiring of that switch has been modified. Apparently, the movable switch cam has been replaced at some point. The green brake feed circuit is not used on a 1967-1968 Cougar.
The cut white/blue wire is a problem as it provides the RH control signal to the sequential system.
It looks like the green/white is cut also.
1 Like
ugh… this is probably the source of my current troubles. Thanks for confirming. I have to dig in and see if the wires are spliceable or if it’s time to buy a new turn signal switch/harness. the mechanics of the switch seem ok at first blush, so I hope it’s saveable without too much pain. But I’ve gone this far so…
So …I replaced the turn signal harness. Now have hazard lights. And i get basic turn signals (only the center light blinks in each brake light), no sequencing.
Its got to be something simple i am overlooking as now theres the electronic sequencer system, turn signal and hazard relays.
I was wondering if it could be this black plug somehow
When i looked at the schematic it seems to only show a single wire in and out
Which says green-orange stripe and orange-blue stripe… but neither of those wires are present.
I do see them in the turn signal relay
Any/all help would be much appreciated!
The emergency flasher relay in the trunk disconnects all but the center lamps at the rear for emergency flasher use. Sounds like yours is no good. It’s the five pin relay mounted to the cardboard on the LH side.
1 Like
Thank you Royce. As i have the cougarsunlimited electronic sequencer, it turns out my solid state emergency flasher unit is seemingly bypassed altogether/removed.
I was able to get both the left and right sequencer to fire but now its inconsistent. Sometimes i am getting a turn signal, sometimes now i am not. I am always now able to get emergency flashers. But im pulling my hair out trying to figure out what i assume is a short thats giving me intermittent signals.
Im open to any/all ideas. I wish i could see someone else’s Cougar to compare installs to see where mines wrong.
If you have the Cougars Unlimited electronic sequencer you better call Vic and discuss it with him. I am over my head talking about that.
1 Like
Center lights only flashing in the rear means the sequential controller is operating in emergency flasher mode.
If you have a Gen3 or earlier sequential controller (with a metal lid), verify that 12V exists on the light blue wire (514) input to the controller. It should be plugged into the matching light blue wire of the original emergency signal relay connector in the trunk. This signal comes from the red wire (511A) of the turn signal switch.
1 Like
How important is torquing down the steering wheel in relation to the turn signal lever? When I had the steering wheel back on, I noticed that when I held the signal lever just so, the sequencer runs happily on the left and right-hand sides (I only get the blinking signal light on the dash for the right-hand side, nothing on the dash left).
When I pulled the wheel back off, and seated the assembly snug and flat against inside the column, it would fire the sequencers.
So is it just a ‘you need to torque that wheel properly’ issue or is it a ‘although you replaced the signal harness, you have another contact issue X?’
I don’t know whether this applies to your year and Cougar, but I found in a 1966 Mustang, that if you crank the steering wheel nut down hard, the turn signal switch is pushed downwards towards the column. Most TS switches have rivets on the back side of them, and MAY contact the ground plane of the steering column. I always recommend a couple pieces of black electrical tape over those rivets when installing the TS switch.
1 Like
and a very special thank you to @cougarsunlimited.net for his terrific support. I installed 2 of 3 (only had 2) stepped screws and that seems to have made the sequencer happy.
Now that I’m finally able to close up the steering wheel, I put on the crash pad. However, when I try to depress the crash pad to hear the horn (horn worked before I put the crash pad on), the crash pad isn’t ‘pushing’ the horn ring down. Is there a piece of metal or something that goes inside the crash pad to let it make contact with the horn ring?
Thanks again!