67 Barracuda electric gremlins

[Bobacuda]

Still chasing gremlins. While going over stuff this morning, I had a battery hooked up, noted headlights parking lights and tail lights work.

Can’t check directional or emergency blinkers until the new flashers get here. Anyhow, I pressed the dimmer switch, bright lights came on - and so did the left directional indicator light. Yep, I put the wire connector to the printed circuit board upside down.

Should have orange and green on the top, red on the bottom. I had:

To fix it, I followed the advice I got here, removed the 3 bolts on the column’s floor plate and the 3 that hold the column to the dash. Disconnected speedometer cable and taped the column, then tilted the dash as far forward as it would go.

I could get to the upside down plug and fix it from the top. Got all my dash lights now.

I still have to figure out why the horns don’t work. Electricity to the horns - no sound when horn button is pushed. Also have to figure out why the back up lights don’t work.

I really hate gremlins.

 

[Inertia]

Horn grounds thru that black wire you took off, when you took off the bracket holding the column up .

 

[Mattax]

Rally dash redo

Flasher wiring not per diagram

Also helpful
Stop and Turn Signals, 1967 Chrysler Imperial Electrical Accessories, Master Technicians Service Conference Session 236

Electrical Wiring (Session 247) from the Master Technician's Service Conference

 

[mvh]

Grounding is pretty key. There is also a ground wire under the steering wheel center cap.

 

[Bobacuda]

Grounding is pretty key. There is also a ground wire under the steering wheel center cap.

I appreciate the help from everyone.
I have grounded the wire under the steering column cover. Is there another ground wire associated with the steering column?

 

[4spdragtop]

If you pop the horn button off, I believe there is a black wire with a connector.

I appreciate the help from everyone.
I have grounded the wire under the steering column cover. Is there another ground wire associated with the steering column?

 

[Murray]

Cluster grounds to the dash, dash grounds to the body. The way you have loosened/tilted the dash, am concerned dash may not ground to body for testing. A jumper wire will fix that.

 

[Bobacuda]

Cluster grounds to the dash, dash grounds to the body. The way you have loosened/tilted the dash, am concerned dash may not ground to body for testing. A jumper wire will fix that.

I had bolted the dash and steering column back before testing.

Saturday and Sunday look to be busy, so I guess I’ll be back scratching my head on Monday.

 

[cudamark]

If you have juice to the horns, they're probably bad, or don't have a good ground between their bracket and the body. All the dash, steering wheel, and horn parts inside the car do is just operate the horn relay, which in turn supplies electricity to the horns....which you already have.

 

[cudamark]

On the backup lights......is this a column or floor shift? If column, there is a backup switch at the base of the column inside down by the firewall. Those are prone to failure if not properly lubed once every decade or so. The actuating pin can also break if the lube has been neglected and the switch jams. Same goes for the floor shift, but, the switch is under the front console plate. I'd start by hot wiring the lights to see if they work first. Just a jumper wire with battery juice to the wire going back to them is all it takes. The light bulbs are grounded through their bulb holder (socket), to the light housing, to the lower valance. Any loose connection or corrosion along that path can cause a no-light situation.

 

[67Dart273]

Still chasing gremlins. While going over stuff this morning, I had a battery hooked up, noted headlights parking lights and tail lights work.

Can’t check directional or emergency blinkers until the new flashers get here. Anyhow, I pressed the dimmer switch, bright lights came on - and so did the left directional indicator light. Yep, I put the wire connector to the printed circuit board upside down.

Should have orange and green on the top, red on the bottom. I had:View attachment 1715903707

"


To fix it, I followed the advice I got here, removed the 3 bolts on the column’s floor plate and the 3 that hold the column to the dash. Disconnected speedometer cable and taped the column, then tilted the dash as far forward as it would go.View attachment 1715903706

I could get to the upside down plug and fix it from the top. Got all my dash lights now.

I still have to figure out why the horns don’t work. Electricity to the horns - no sound when horn button is pushed. Also have to figure out why the back up lights don’t work.

I really hate gremlins.

"If you are careful" you can remount those dash speed nuts, and you MAY need to use shorter screws, and you can put the dash screws in from the bottom, thus then being able to pull the dash frame with the windshield still in.

You should add a ground pigtail to the cluster and bolt it to the dash frame or column support

Horn..........the horn wire grounds the coil of the relay. The relay coil and one relay contact always should have "hot" power. You ground the horn button wire, the relay should fire. That should send power to the horn.

Checking turn signal and hazard function. You can do that without flashers, just jumper across the flasher sockets. The turn should come on "steady" when you activate the lever, and of course the hazard do the same when you activate that switch. For hazards, TS switch must be centered, and foot off the brake.

 

[Bobacuda]

Damn electric gremlins!
I flipped the connector to the dash circuit board (I had it upside down). Next I installed a new directional and a new emergency flasher. I now have emergency flashers and the right side directional light. Left side directional does not blink. All parking lights and brake lights work. No “bright light” indicator. All fuses look good. Frustrating.

Gonna work on horn and back up lights for a while, hoping to resolve their problems.

 

[Bobacuda]

Horn gremlin ‍

I disconnected the ground wire at the horn relay, connected the ohm meter to it and the relay pushed the horn button - open connection.

Put the wire back on, disconnected the plug where the steering column attaches to harness, then connected connector ground to ohm meter - open connection. Connected the relay ground to good ground and horns honked.

Connected ohm meter to the ground on the steering column connector again and on to a good ground - open connection.

Pressed horn button - open connection.

Connected the steering column connector to the loom, pressed the ring and turned the wheel back and forth, got a burst of horn.

Still no left turn signal or “bright light” light. I’m thinking the 53 yr old blinker switch is bad.

Thoughts? 67Dart273?