Circuit Breaker?
Thread Starter
Pro
Joined: Nov 2006
Posts: 537
Likes: 105
From: Abington Pa
Circuit Breaker?
Any chance somebody might have a picture an installed circuit breaker used in the power window circuit on the '74 and '75 year models? I need to see how this bugger is mounted and wired. I'm installing power windows 
so there is nothing there currently.
so there is nothing there currently.
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
74, the breaker mounts under the hood on the inboard side of the support for the brake booster. It's just a standard breaker with 2 studs for power in and out, a small tab to mount it. Like this one:
http://www.summitracing.com/parts/bs...FaZFMgodtHEAAg
http://www.summitracing.com/parts/bs...FaZFMgodtHEAAg
Melting Slicks
Joined: Jul 2009
Posts: 3,264
Likes: 3
From: Vero Beach FL
I have a 71 and have seen them mounted in two different locations. One on the side on where the master cylinder mounts (as show in one of the photos) and the other on the firewall just left of where the one in the photo shows it. My AIM shows it on the firewall. Somewhat confusing.
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Drifting
Joined: Aug 2006
Posts: 1,728
Likes: 193
From: Scottsdale Arizona
I am putting power windows in my 72 and on the firewall there are two indents and that is where you drill the holes for the circuit breaker. I do not know if 73 would be the same my 69 with power windows is in that location.
Cruising
Joined: Aug 2014
Posts: 11
Likes: 0
Interesting that this part is called a circuit breaker and not a fuse. Can it be reset (like a circuit breaker in a home)? Or does it have to be replaced if there is/was a short? Also, if one window works and the other does not, does that eliminate the circuit breaker as the source of the problem and then I can move on to testing the switch of the affected window? I know that the motor works because I jumped it directly from the battery.
Le Mans Master
Joined: Aug 2006
Posts: 7,423
Likes: 1,558
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
If one window works but not the other then look at the wires that go through the conduit between the door and the frame or the switch for that side.
Typical schematic:
Typical schematic:
