Ahhh okay, The backside looks perfect there was one SLIGHT spot on the front that looks like the same corrosion you had though but I cleaned it up.

 

Work has been killing my time sorry, and I had to fight off code enforcement since Im apparently not allowed to work on a car in my driveway ...

Anyways I rechecked all the grounds had a second opinion on my bcnm for cleanliness and I figure tomorrow I will order a new head unit unless there is anything else you think I should try first?

 

I kind of misread one of your replies,,, Sounds like your head unit has a serial buss comms issue. Time to open it up and see if its an easily fixable issue and can be fixed or if its time to get a new one.

You should still open it and see if theres something obvious..

BC

 

Okay. I have had a forced hiatus from repairing the car unfortunately.

However, I was forced to push the car back on the road this week due to some events of life happening. I figured that at worst I wouldn't have my ac head unit plugged in and I could drive the car until I could fix it.....

NOT TO BE>>>

I drove the car for about an hour, then on my way home I noticed my interior lights were flashing every few minutes; with the blinker, starting from a dead stop, and randomly.. then my message center started telling me trunk open even though it wasn't, the interior lights started to blink with the blinker. Then the interior lights decided to come on and stay on until I got home and I disconnected the battery!

I am going to recheck the grounds in the morning but is there a chance this is all related and maybe tethered into my ECM? Only reason I am wondering is I can hear something clicking off and on- down in the floor board when all this is going on.

 

So replaced my battery and all the new problems went away.
I made a new grounding point on g102 and cleaned the others again.

Then I removed one wire at a time from the ac head unit. Only the white (the wire that runs between the ac head unit and the computer) would make the reduced horsepower mode and no comm situation go away.

Because of this I am convinced my ac head unit is causing the issue. I am ordering one today and it should be here Saturday. Hopefully this is it!


If anyone however happens to have a picture of how the wires are suppose to go in the connector for the a/c head unit please post it or let me know... I should have take a picture before I disconnected them and only have one possibly out of place. The orange wire I am unsure if it goes directly under the pinkish wire or if it skipped a spot or two I am pretty sure it goes directly under the pinkish but I am second guessing myself....

Thanks!

 

Found a pic on here for the wires at http://www.vetteaction.com/curtsphotos/hvacillwire.jpg
it shows the side and the orange is fine.... however a few wires on the other side I am questioning now and its hard to see in the picture... If anyone has a pic of the other side or otherwise knows the layout and correct pattern I would appreciate it. stumbling my way through getting this thing back to working condition one day at a time...

 

Don't know if this is what you're looking or not, hope it helps!
------------------------------------------------

---------------------------------

Connector Part Information
12045470
32-Way F Micro-Pack 100 Series (NAT)

Pin
Wire Color
Circuit No.
Function

C1
BLK
150
Ground

C2
LT BLU/BLK
590
Driver Solar Sensor Signal

C3
DK BLU
1646
Air Temperature Door Position Signal-Auxiliary

C4
--
--
Not Used

C5
BRN
41
Ignition 3 Voltage

C6
WHT/BLK
1236
Air Temperature Door Control-Auxiliary

C7
DK BLU
1199
Air Temperature Door Control

C8
LT BLU
733
Air Temperature Door Position Signal

C9
--
--
Not Used

C10
YEL
1791
5 Volt Reference

C11
TAN
63
Blower Motor Speed Control

C12
ORN
540
Battery Positive Voltage

C13-C15
--
--
Not Used

C16
YEL
390
Instrument Panel Lamp Supply Voltage - 3

D1
GRY/BLK
1798
Ground

D2
DK GRN
734
Inside Air Temperature Sensor Signal

D3
LT GRN/BLK
735
Outside Air Temperature Sensor Signal

D4-D7
--
--
Not Used

D8
DK GRN
1394
Recirculation Mode Valve Solenoid Control

D9
LT GRN
66
Mix-Blend Mode Valve Solenoid Control

D10
PPL
1397
Lower Mode Valve Solenoid Control

D11
LT GRN
1395
Upper Mode Valve Solenoid Control

D12
WHT
1038
HVAC Class 2 Serial Data

D13
PNK
1396
Defrost Mode Valve Solenoid Control

D14-D16
--
--
Not Used

 

Thanks that's perfect!

 

 

I got my head unit tonight! I am glad to report all issues are solved! I plugged that bad boy in turned the fan up and was off and running!!!

Thanks everyone especially Bill and lucky for all suggestions and guidance! I only need to do a few little things (get a new key and replace my e-brake) to be 100% happy with my baby!