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As I'm preparing to rewire the engine compartment of the 66 Toro, I read some posts, especially from ourkid2000, alluding to mistakes in the 66 CSM wiring diagram. I've looked at a 67 CSM diagram and couldn't see any obvious differences, but I didn't compare them side by side. Is there a thread I can follow that has these differences identified so I can make sure the car is wired correctly? Also, I see the diagram for the 66 shows a resistor in the ignition switch and the coil. Can anyone tell me where these resistors are? I cannot recall seeing one near the coil or the ignition switch. Were they originally inline resistors? Thanks for all the assistance.
As I'm preparing to rewire the engine compartment of the 66 Toro, I read some posts, especially from ourkid2000, alluding to mistakes in the 66 CSM wiring diagram. I've looked at a 67 CSM diagram and couldn't see any obvious differences, but I didn't compare them side by side. Is there a thread I can follow that has these differences identified so I can make sure the car is wired correctly? Also, I see the diagram for the 66 shows a resistor in the ignition switch and the coil. Can anyone tell me where these resistors are? I cannot recall seeing one near the coil or the ignition switch. Were they originally inline resistors? Thanks for all the assistance.
MajD
In the '66, look at the wiring to the tail lights. One black/white wire goes to nowhere. Also, look at the wiring going to the actual tail lights themselves. Black-Yel goes to five lights (3 left, 2 right), while another dark green wire goes to the 6th light. I don't know what they were smokin' when they drew this one. They corrected this mistake in the '67 wiring diagram.
More:
- No fusible link off the junction block shown, while they were produced with fusible links.
- The colors of the wires on the cluster connectors are wrong.....completely wrong.
- Unlabeled switch above the headlight switch (this is the interior lights on off switch.....no dome light in this car but similar thing).
On '66 Toronados, with manual AC at least, the wiring for the blower motor isn't shown anywhere in the manual. We figured it all out on here a few months back. That's all I can think of for now but I'm sure there's more I've forgotten about.
The resistor for the coil is a "Nichrome resistance wire" spliced into the ignition wire. It starts maybe about 2 feet before the termination at the coil + connection and I think it's a white wire with red and black cross pattern in the insulation. That little length of wire drops the voltage to the coil when the engine is running to like 9V or something. I haven't stumbled across the resistor for the voltage regulator yet.
Thanks for all the info. I did notice the "wire to nowhere", but since I wasn't working on the tail light circuit I wanted to keep the focus on what I am most concerned about. I did not notice the green wire to a single light, so it may be a good idea to get my hands on a 67 diagram. I too have the fusible link, and it looks like it's supposed to be connected to the alternator output as it has a ring terminal on one end and a small black box (presumably a relay) on the other. I cannot tell for sure because a previous owner spray painted everything under the hood with flat black paint. The relay end looks like it belongs on the junction. But it doesn't make sense to run a second wire from the alternator to the junction block for a relay, when you could just run a red wire from the junction block to the relay and put the link in that length of wire. Can you tell me what circuit the fusible link is for?
Can you tell me where the unlabelled switch is located in the cabin? Also, tracing the wire from there leads to a circuit with a switch labelled "courtesy switch", which is separate from the door switches. Can you tell me where that one is? I really appreciate all the help and information. While I'm not glad you had to do major electrical work on your car, I am grateful it gave you the helpful information you've been passing along. Thanks.
MajD - Not to jump into the discussion between yourself & the kid; but, spend a couple minutes to understand the function of the electrical fusible link & why it is wired into the electrical system >>> Fusible link. Essentially the fusible link opens the circuit when an electrical overload occurs. Please understand the fusible link is a specialty wire with a specific wire type covered/surrounded w/ special insulation to facilitate this purpose - think of it as (perhaps) a dedicated hardwired fuse. Note the discussion contained in your other thread in which we discussed the SHUNT & the SHUNT SPLICE along w/ the several other wiring diagrams from various years &/or on select Oldsmobile models (A-Body vs. E-Body posted into the thread (or elsewhere). Note the location of the fusible link when it is employed - you should see some familiarity between the SHUNT SPLICE, when the SHUNT SPLICE was no longer wired into the electrical diagrams and incorporation of the fusible link. Granted there exist some vagaries & apparent incorrect schemas in the 1966 wiring diagram for the Toronados.
This is merely a visual example (ONLY) of a 1971 Oldsmobile A-Body (Cutlass) demonstrating how a fusible link is incorporated into the wiring. Simply use it as an example. The 'fusible link' is the short piece of black wire with the connector (identified). HTH
The "courtesy switch" is on the lower rightside dash panel to the left of the ignition switch.
The unlabeled switch would activate only the interior rear quarter lamps - I've owned and driven '66 Toros for 49 years, and I know nothing about the existence or location of this switch - If anything, you'd think it might be in the rear seat area, for use by rear seat passengers, but there's no such animal.
The "courtesy switch" is on the lower rightside dash panel to the left of the ignition switch.
The unlabeled switch would activate only the interior rear quarter lamps - I've owned and driven '66 Toros for 49 years, and I know nothing about the existence or location of this switch - If anything, you'd think it might be in the rear seat area, for use by rear seat passengers, but there's no such animal.
It's the twisty in the headlamp switch. The one that dims the dash lights......rotate it until you feel the switch engage. I can't remember exactly what lights it turns on as I don't have the wiring in front of me, probably just the rear quarter lamps.
I welcome all inputs and information from people that have history and experience with these cars. Thanks for the picture. What I'm talking about doesn't look like that. I haven't had an opportunity yet to really dig into what it is, but basically a thick (10 ga?) wire with a ring terminal runs to a small square unit with a rubber top and metal sides. On top of the unit is a lozenge shaped protrusion that looks like it could house a fuse. So I reasoned that it was an inline fuse...but certainly have not confirmed that. The wire comes out the other side to an other square unit that looks like it could be a relay. It has two other wires attached to it, like control wires, but everything was painted black as I said earlier so I don't know for certain that it's a relay until I test it. The relay connects to the junction block. If anyone knows what this is, please let me know. I will try and post a picture of it next time I'm working on the car. Thanks.
I welcome all inputs and information from people that have history and experience with these cars. Thanks for the picture. What I'm talking about doesn't look like that. I haven't had an opportunity yet to really dig into what it is, but basically a thick (10 ga?) wire with a ring terminal runs to a small square unit with a rubber top and metal sides. On top of the unit is a lozenge shaped protrusion that looks like it could house a fuse. So I reasoned that it was an inline fuse...but certainly have not confirmed that. The wire comes out the other side to an other square unit that looks like it could be a relay. It has two other wires attached to it, like control wires, but everything was painted black as I said earlier so I don't know for certain that it's a relay until I test it. The relay connects to the junction block. If anyone knows what this is, please let me know. I will try and post a picture of it next time I'm working on the car. Thanks.
It's the twisty in the headlamp switch. The one that dims the dash lights......rotate it until you feel the switch engage. I can't remember exactly what lights it turns on as I don't have the wiring in front of me, probably just the rear quarter lamps.
My memory finally kicked in, but you beat me to the answer. Per page 12 of Owners Manual, turning the headlight switch fully counterclockwise results in rear compartment lights being turned on. So, there's your unlabelled switch function and location. I think this was discussed earlier, maybe a year ago.
