Can someone help me identify the harness name for the big plug under the brake booster near the firewall. Also does anyone know what the bottom left wire on the plug is for?


ReD RaiN

Still havnt found a deff answer. From what ive searched i think its called the c100 bulkhead connector. Anyone have a pinout for this? Cant seem to find much info on it. Still clueless to what that harness is called..


ReD RaiN

You are correct, that is the C100. What year is your car?

Wasnt sure cuz when i did the search it kept saying f body. But my cav is an 04


ReD RaiN

Okay, I have several wiring diagrams here. What color is the wire in question?

I went to chev today and they printed me a pinout of the plug, but not sure whats left and right. The wire color im unsure of cuz of the mess with undercoating from the previous owner. The wire in question is either a2 (ignition 1 voltage) or a8 (crank voltage). The reason im asking is cuz the wire is broke off but dont seem to he causing a problem... No engine codes nor trouble starting. Im just curious to know what runs off the wire. I do have a wiper control issue tho. Anything else connected to this line? Thanks for the help


ReD RaiN