67 C2 all lights work, except 1 brake light?

[Trent T.]

1967, all the lights including turn signals work, except the passenger side brake light. What could that be?

[Jeffrey S.]

Re: 67 C2 all lights work, except 1 brake light?

Possibly a bad ground or the bulb is not making good contact with contacts at the base of the socket . Wiggle the bulb in the socket with the brake lights on and see if it works / if no joy check the ground on the light body. hope this helps . Jeff

[Trent T.]

https://www.forums.ncrs.org/showthread.php?79635-1965-Right-Rear-Brake-Lights-Don-t-Work

[Ed S.]

Re: 67 C2 all lights work, except 1 brake light?

Is this problem affecting both lights on the passenger side or just one of the two? Does the "tail light" work - meaning, when you pull the light knob on the instrument panel out to the parking light or headlight position does the offending light illuminate? If no then it is likely a grounding issue with that socket - that passenger side tail - stop light is at the end of the circuit - so all others before it will work if properly grounded. If the tail light comes on when you pull the knob on the instrument panel but it does not illuminate real bright when you step on the brake pedal I suspect the problem is in the socket itself or the bulb.

[Richard M.]

Re: 67 C2 all lights work, except 1 brake light?

Ed,

He mentioned "all" lights work, so assuming that it's likely the directional switch.


Trent,

Have a helper wiggle the signal lever a bit and see if it changes. Also tickle the Emergency flasher switch.... but it shouldn't have an effect on just one side.

It could also be a wiring connection issue in the connector coming off of the directional switch.

See the following diagram and you'll see the path of the Right directional through the switch via the Green wire.

Edit... I noticed the original diagram was updated so here it is.

[Ed S.]

Re: 67 C2 all lights work, except 1 brake light?

Do what Rich says - he accurately pinpointed an electrical issue I had with my rear harness (on a 64) on his first comment that drove me nuts for months. I partially drove a screw that secures the driver side kick panel through the wiring harness that is concealed behind the kick panel. Sometimes some lights worked sometimes they didn't.

[Richard M.]

Re: 67 C2 all lights work, except 1 brake light?

Trent,

Note that diagram in the previous post was a old rev so I replaced it and put it here too below.... with the suspected switch contacts circled in Red.

Follow the White wire from lower right from "BRAKE SW", into the switch via the connector then becomes Blk/Wht, up inside the switch in the upper left area of the diagram, then where it says "REAR LIGHTS", at the lines where the DK GRN and BLK/YEL wires are. Note that the BLK/WHT is always connected to DK GRN & BLK/YEL when the lever is centered.

A typical problem of one rear brake lamp not working is the contacts fail inside the switch for only ONE side when the lever is centered. The directionals work because the rear lamps are powered via the other internal switch contacts.

As mentioned wiggle the lever around and see if it flickers. If it does, it may be ok for a while but the problem is you won't know if it fails again when you drive the car.

Rich

[Trent T.]

[Gerard F.]

Re: 67 C2 all lights work, except 1 brake light?

Trent,

Take a look at his thread in regard to the contacts within the 67 (and 68) signal switch:

https://www.forums.ncrs.org/showthread.php?70024-67-Signal-Switch-It-s-all-in-the-cam-part-2&highlight=signal

You might very well have some contact problems in the signal switch cam, as I had with a brand new signal switch. Too much grease in the cam.

If you continue to have problems with the brake or signal contact in the switch then you might consider a new switch or try to clean the contacts.
Shee-Marr makes the best switch for a 67, but make sure you clean the cam contacts before putting it on. The signal switch for a 67 is unique to a 67 and 68 and not like other C2 years.

Have fun

[Leif A.]

Re: 67 C2 all lights work, except 1 brake light?

Trent,

Take a look at his thread in regard to the contacts within the 67 (and 68) signal switch:

https://www.forums.ncrs.org/showthread.php?70024-67-Signal-Switch-It-s-all-in-the-cam-part-2&highlight=signal

You might very well have some contact problems in the signal switch cam, as I had with a brand new signal switch. Too much grease in the cam.

If you continue to have problems with the brake or signal contact in the switch then you might consider a new switch or try to clean the contacts.
Shee-Marr makes the best switch for a 67, but make sure you clean the cam contacts before putting it on. The signal switch for a 67 is unique to a 67 and 68 and not like other C2 years.

Have fun

I agree...and their entire product line is sold by Rock Auto.

https://www.rockauto.com/en/moreinfo.php?pk=1481798&cc=1321377&pt=4832&jsn=966&jsn=966

[Richard M.]

Re: 67 C2 all lights work, except 1 brake light?

It's unfortunate that the reproductions don't use a black connector housing as original. When I use them and the car has a original switch that's bad, I swap the housings.

PC230031.jpg PC230032.jpg PC250001.jpg

[Gerard F.]

Re: 67 C2 all lights work, except 1 brake light?

On a 67 you have to take the connector off anyway to thread the wiring down the column. So you might as well use the original black connector. You need to release each connector with a small screwdriver. Make sure you get the wires in the connector in the right order and positions or it won't work right. How do I Know


SignalSwNewInstall1 (Medium).jpg

[Richard M.]

Re: 67 C2 all lights work, except 1 brake light?

On a 67 you have to take the connector off anyway to thread the wiring down the column. So you might as well use the original black connector. You need to release each connector with a small screwdriver. Make sure you get the wires in the connector in the right order and positions or it won't work right. How do I Know

Jerry, That's true, but most I've done are when I rebuilt the column so I can easily feed the wires with the connector attached.

Rich