Try to do my best
Quote:
Originally Posted by AZKen
Hello Tom, I recommend starting new on this wiring thing. OK? Here we go.
Stop testing. Stop looking at fuse panel. For now.
Look at the wiring diagram for 1965 GMC. You will see the turn signal switch. The diagram shows Violet. N(white), Black, Dark Blue, Light Blue, Dark Green, Yellow and Gray wires. 8 wires coming out of the switch. (One extra gray wire probably not there).
Find the connector from thr swich wher Lizzy describes..... and tell us if there are those wires and those colors coming out of the turn signal switch and going to one half of the connector. Do not proceed until you post this information. Make sure you check this website forum often so the time zone difference does not slow us down too much.
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Please see the picture. On the turn signal switch (right side of the picture) I have the following colors:
violet, white, black, yellow, dark blue, light blue, dark green. I cut away the half moon connector because on truckside harness it was missing. I crimped a new connector. On the side of the turn signal switch I removed the connector for the photo to get it out of the steering column.
Quote:
Originally Posted by AZKen
We should now go one step at a time at first.
As you know:
The "Turn Signal Switch" is a switch inside the steering wheel/column. Operated by a lever.
This switch has wires running down the column to one half of a connector.
The other half of the connector is wired to the truck/harness.
These connectors are "plugged" into each other (mated).
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I took the steering wheel apart to test the switch. The half connector was missing on the old harness, so I crimped a new one. Unfortunately I was not able to get a new half moon connector. Seems that they are no longer produced/available as a spare part.
Quote:
Originally Posted by AZKen
If any test are given, we will only be interested in finding 12V, not ohms. Unless we want a continuity test, which just confirms if a wire is connected from one point to another. We won't need an ohms value. You will find the Continuity setting on your multimeter. Sometimes it's a buzzer sound.
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OK, I understand.
Quote:
Originally Posted by AZKen
You need to have a front dual filament parking brake socket/bulb each side. In the rear you need the rear light to have a dual filament socket/bulb each side. Please advise. Also Please explain fully and completely so we can understand this statement "Parking light (separate harness because of law here)"
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On the front firewall harness I have the violet wire that is an own circuit (not connected to the turn signal bulbs). Small lamps for the violet parking brake circuit are included in the head lights. The violet wire leads from the firewall connector to the small lamp socket in the headlight and from the socket I have a black wire to ground. Parking light funciton is perfect.
Quote:
Originally Posted by AZKen
I see you are doing a wonderful restoration. Good job. I believe your lighting problem is just a slight miswire which we will find as we proceed slowly.
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Thank you very much AZKen. The project still makes me proud
Quote:
Originally Posted by AZKen
1. Did you buy a complete harness or building your own? If you bought one please give vendor and part number of the harness.
2. If you are making your own, what fuse panel, what sockets, what connectors are you using? Vendor and part number. Explain carefully.
3. Are you using original headlight switch, park and tail sockets, ignition switch, turn signal switch????
4. What is your experience level with automotive wiring?
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1. I build the harness on my own.
2. I used the original fuse panel, the original sockets, and bought new original connectors/terminals (Packard 56 Serie) or used the original ones which were in good condition. The only connector I was not able to buy was the half moon connector of the turn signal / truck side harness.
3. Head light switch I don't know if it is orignial but the wiring is like the original one. Tail sockets are new from LMC and park sockets are after market I think. They were put in by the pre owner. Ignition switch is original, also the turn signal switch.
4. No experience in automotive wiring until this project.
Quote:
Originally Posted by AZKen
It's always a bit more difficult for both of us due to slight language and time zones. We try not to wait days for each response if we can. We will lose progress. I will do my best.
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I appreciate your help. Thank you