Question: Electrical - '99 Vert

[JRMaroon]

I'm posting this for a friend who is putting his C5 convertible back together.

In the attached picture he is looking for some information on the wires that are not currently connected to anything. This photographed area is on the passenger side, behind the front wheel.

16 pin connector, hanging directly behind wheel - What should this connect to?

7 wires on left, hanging from above - What do these wires connect to? They are currently bare with no connectors attached.

Thanks for any help you can provide.

View attachment 17550

 

[c4c5specialist]

HI there,
Both are for the TAC or throttle actuation control.
Allthebest, c4c5

 

[goldzilla]

1999 C5 Convertible Wiring

HI there,
Both are for the TAC or throttle actuation control.
Allthebest, c4c5

Thanks! That's a big help.
Do you happen to have a wiring diagram available to help me sort this out?

 

[Hib Halverson]

HI there,
Both are for the TAC or throttle actuation control.
Allthebest, c4c5

Is it safe to assume that the TAC module is missing?

 

[goldzilla]

Is it safe to assume that the TAC module is missing?

I guess so. I wasn't even sure what the wires went to. They have been cut. Do you know the part number for the module I need?
Thanks.

 

[c4c5specialist]

HI there,
Fact is from that picture, the PCM is upside down, so the actual wiring harness that plugs into the PCM is misrouted.
Now, as far as the connectors, there are 2.
As messed up as that is, I would suggest replacing both.
Just to be on the safe side.
TAC module is 12578953 $318
the 16 pin connector is 12125676 $95
The 10 pin connection is NOT available with the leads, so that means someone has to install the correct terminals into the 10 pin side.
Allthebest, c4c5