AC Problems

Since moisture can often lead to corrosion I would have it replaced as soon as convenient.
Good luck.
The ec light on means the ac compressor is not clicking on.
Could be anything from a sensor to low or no r134a in the system.
Run the diagnostics on the digital climate control module,punch the numbers into the program,post the numbers and errors here.
Then see if tossing in a can of r134a triggers the compressor to engage and locate the leak.
If all that is Greek to you
pm me and I can point the way.
to the solution.
Check here for onboard CC diagnostics info:
http://www.eclassbenz.com/node/27
Run and post values so others can chime in.
1-37
2-28
3-51
4-51
5-29
6-60
7-01
8-29
both auto buttons on
1-48
2-28
3-80
4-80
5-31
6-100
7-01
8-30
thanks gentlemen,,tell me what I got here.
Did you do Part 2 - Error codes? Will show a b plus 4 digits
If you get E FF your done. Post Error (Trouble) codes.
01
your r134a has leaked over time( as all systems will eventually) down to the point of to low to operate.
add a can of r134a and have an ac shop use a sniffer to detect a leak.If no leak the r134a can be filled fully to weight properly.
Amount of R134a is listed on a tag over by the ECU in the engine compartment.
The Best of Corvette for Corvette Enthusiasts
Eb1 416
Eb1 241
E FF
I ran it twice and dgot the same numbers once again. Now what does the codes indicate? Thanks much in advance.

BTW, at part 3 of that link you'll see a small link 'click here' in the text. That will take you to the next page which has the descriptions of all of the values both status and error.
Last edited by RichardM98; Jan 31, 2010 at 08:21 PM.
EB1 227
EB1 231
EB1 234
EB1 417
EB1 418
EB1 459
EB1 241
E FF
Can anyone assist me .... I also have the codes for the numbers 1-8
Most of them will never come back and you may be just brain froze in the climate control.
Post the data values after you run the diagnostics and errors again.

Did you post the values and error from running the onboard diagnostics?
Post them if not and then we can proceed
1 - 28
2 - 31
3 - 20
4 - 17
5 - 15
6 - 70
7 - 12
8 - 46
I get no error codes when i tried (E FF) was all i got. Hope you experts can have a look just to make sure everything is ok.
Oh, additional infomation is that the outside temp is 31 degrees celsius.
Many thanks
Thanks Dan
Any idea will be appreciated
1 125
2 109
3 111
4 112
5 105
6 190
7 00
8 109
9 27
10 .8
11 .3
20 3.2
21 42
22 00
23 32
24 13.5
40 164
Error Eb1226
Eb1227
Eb1234
Eb1416
Eb1241
Get it to a qualified a/c shop.
Have the system evacuated,pressurized and leak tested. Once they locate and repair the leak they will flush,change drier,evac it again and fill with the proper amount of r134a and oil.This one is over your head and also over your supply of the correct pumps,gauges,and scales to do properly.

you also might want to make sure your outside temp sensor is plugged in since I doubt it is over 100f where you are.
Last edited by ohlord; May 21, 2010 at 07:16 PM.
FYI the error codes you listed are:
Eb1226 - In car temperature sensor malfunction
Eb1227 - Outside car temperature sensor malfunction
Eb1234 - Sun sensor malfunction
Eb1416 - Coolant Circulation pump malfunction
Eb1241 - Refrigerant low




