71 unknown electrical plug-in at firewall

[Kenneth T.]

I have a 71 LS5, late build car. I have a wire with a plug in connector that I cannot identify. I would appreciate any help figuring it out. I am posting pictures. The wire is black and comes through the firewall grommet with the pass side wiper hose. There are two wires that pass, a white or tan one and a black one with the connector I am questioning. Thanks for your help.

Ken

[Rick N.]

Re: 71 unkown electrical plug in at firewall

That is the ground wire for the wiper motor.
The alarm ground from the firewall switch will piggy back off that connector also.

[Kenneth T.]

Re: 71 unkown electrical plug in at firewall

Rick,

Thank you for your response. The wipers and alarm both work, but now I have to search for the matching connector to that plug, perhaps somewhere on the wiper motor itself.

Ken

Rick, 100% correct! Someone jury rigged the ground elsewhere, so now I have put it back correctly. Thank You very much.

[Gary B.]

Re: 71 unknown electrical plug-in at firewall

This what it looks like when both wires are connected to the ground on the wiper motor.
Gary Bosselman