What's this wire?

[INTHE10s]

On the engine compartment side of the fuse box there is a brown and white wire that runs down towards the frame rail and then to the back of the car next to the brake line. I just notice mine is broken. What's it for?
Thanks,
Jerry

 

[prairiehotrodder]

does your car have a lockup convertor?

 

[INTHE10s]

Did they have lock up converters in 1980? Car currently has a ZZ4 350 and turbo 400 trans. Just curious if I should splice the wire back together or maybe something I don't need?

 

[t5montecarlo]

It sounds like the wire going to the switch on the brake distribution block.

 

[LS6 Tommy]

As far as I can tell, there is no brown wire with a white stripe in the engine bay. That wire should be tan with a white stripe. It's circuit 33, the brake warning light. It goes to the brake pressure warning switch on the combination valve.

Tommy

 

[INTHE10s]

You guys are awesome! Thanks for the help.