| CCC Displays "c" "d" or Nothing
I have a '92 SDV that has a Climate Control problem and maybe the OBD as well. Recently, sometimes when the engine is started the CCC will display a "c" for different length of time before returning to normal operation. Other times it will be totally blank with NO info on the screen. Rarely it will display a "d" before returning to normal operation. It got to the point where I drove the car for over an hour before it decided to return to normal operation. It then seemed to die completely. I disconnected the negative battery cable for a few minutes, and after reconnecting it the CCC seemed to work properly for a short period of time. Now once again it will display the "c" for a short time and then work correctly. I don't know if this is a related issue, but after searching through your forum for info on how to solve my problem I have another one. I try to access the error codes from the ODB but I can not get the functions to operate as described in the pdf doc. I get these which I can find in the error code list. E48, E52, and I also get F30 and F46 but there isn't any reference to "F" in the list. If I press the "Hi" to get to the next code it cycles thru E.1, E.2 E.3 and so on. If I press the "Low" I get a code that starts with "P" each time the "Low" is pressed. I'll post it in case it is relevant.
P.2.5 500
P.2.4 0
P.2.3 00
P.2.2 11
P.2.1 2.0
P.2.0 128
P.1.8 128
P.1.6 0
P.1.4 .46
P.1.2 .0
P.0.9 0
P.0.8 0
P.0.7 .0
P.0.6 6
P.0.5 55
P.0.4 68
P.0.3 103
P.0.2 103
P.0.1 2.5
I try to get the "normal" codes by pressing the buttons per instructions by it doesn't work for some reason.
Any help would be appreciated.
PS I did change the EGR Valve about a year ago, the E48 code? | 
