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My 03 vette was running good but then all the sudden the dash went crazy and started to throw all kinds of codes ex: inappropriate shock, reduce engine power and all the gauges went crazy and went high to max out. I was wondering if anyone has had this issue with there corvette before and was wondering how to fix it and or what to do. I would like to fix it myself and avoid a dealer because it can get expensive and fast any help on this is appreciated. I like to work on my car myself but i don't know where to start ATM please help if more pictures are needed just let me know.
I have some images to go along as well
notice the coolant maxing a 300.
reduce engine power
Last edited by chuck1992; May 27, 2015 at 08:33 PM.
Chuck1992. First you are in the C7 Forum. Second, remove the negative battery connection, sand it - clean it and re-attach. My C6 did the same thing when I had to replace a dead battery at my office parking lot to get it home. Apparently my negative connection was not good.
Chuck1992. First you are in the C7 Forum. Second, remove the negative battery connection, sand it - clean it and re-attach. My C6 did the same thing when I had to replace a dead battery at my office parking lot to get it home. Apparently my negative connection was not good.
If your serial data fed gages are WHACKED OUT,,,,,,, ,,,, You have a serial data buss or Serial DATA issue. Simple as that.
I provided tech PM assistance.
There is either a WET BCM or issues somewhere on the data buss ( most likely a LDCM, RDCM or SCM issue.)
When I have this issue the door controls stop working, the engine cranks but wont start and I also have whacked gages. Some cars ar a little different. Depends on how bad the serial data is.
My issues stem from a damaged LDCM FEMALE POWER PINS! Its all spread apart and makes a crappy connection with the male pins. The module turns on and off intermittently and that corrupts the data on the serial data wire.
If you can tell me how they get this way other than heat, vibrations and the female pin ferry,, you could make a lot of friends and maybe some money.
Dash lights going nuts NEED HELP!!
,,,, You have a serial data buss or Serial DATA issue. Simple as that. 
