What is this wire?

[kwmech]

Is there 12v there either batt or ign? Looks like a bullet plug-maybe for the cig lighter?

[68 C10 Driver]

Originally Posted by kwmech

Is there 12v there either batt or ign? Looks like a bullet plug-maybe for the cig lighter?

I do not have the battery connected yet, not that far along. The cigar lighter has a red wire that heats the element, ground is achieved through the mechanical connection at the dash.

I am just real stumped as to what this wire connects to. The only thing I do not yet have installed is the radio...radio ground?

I appreciate the responses.

[LockDoc]

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Grasping at straws here. Do you have this ground wire? It is the ground for the cluster. You could use a Multi-Meter (OHMS) and see if your wire connects to that space on the cluster connector.

LockDoc

[68 C10 Driver]

Originally Posted by LockDoc

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Grasping at straws here. Do you have this ground wire? It is the ground for the cluster. You could use a Multi-Meter (OHMS) and see if your wire connects to that space on the cluster connector.

LockDoc

The cluster ground is connected, that one is easy as it has that odd clamp connector. I will look for the schematic that came with the harness. I guess I got ahead of myself by wrapping the harness in harness wrap...I really don't want to cut that open.

I guess I will chase that wire down using my multimeter.

Thanks again guys!

[68 C10 Driver]

Mystery solved, the wire in question is from the under dash air conditioners wire to the binary switch (back in the day it went direct to the compressor.

I just had to unravel the harness tape to follow it. Thanks to all that offered their thoughts and guesses.