OK I was on my way home from my brothers and the car lost all the dash lights and guages and all throttle response. Pulled over and shut it off and tried to restart it , would not start , just spun over. I waited and tried again , it started and had no dash lights and no throttle response. shut it off and restarted and it started and had throttle response with a check engine light . Got it home and cleaned the battery cables and rechecked , still no dash lights and no throttle response. Going to take the battery out and take it to work and check it and I guess clean all the grounds that I can find.

 

Why didnt you check and then post what the DTCs was that caused the CEL?????? That could have hepled to pin point what was wrong.

You either had an ignition switch issue OR your serial data buss had issues. Without being there (and not being able to see the DTCs ) Most of this is an educated guess.

The NEXT time this happens (if it ever does) when you have those same symptoms,,,read and wright down ALL the DTCs and make sure that you include the C & or H

If you have an ignition switch issue, Read and follow my ignition switch repair post.

If you have a Serial Buss Issue grab and shake the rubber accordion tubes between the doors and the door frames and see if that resolves the issue. The other very common serial buss failure location is the drivers seat wiring harness.

If you asking your self,,, How the hell does this idiot think Im going to read my own DTCs???

Here ya go:

READING YOUR Engine Diagnostic Codes (DTCs)

The Diagnostic Display Mode is entered with the following procedure:
1) Turn on the ignition but don't start the engine.
2) Press the RESET button to turn off any warning messages. (i.e. door open, trunk open etc…)
3) Press and hold OPTIONS
4) While holding OPTIONS, press FUEL four times within a 10-second period.

Initially, on-board diagnostics go into an Automatic Mode which shows diagnostic codes in a pre-set sequence: PCM - TCS - RTD - BCM - IPC - RADIO - HVAC - LDCM - RDCM - SCM - RFA. All codes will be displayed for each. ( i.e. PCM = 4 codes)
If none are present in a given module, you will see No More Codes on the display.
There are two kinds of diagnostic codes, Current and History designated with a letter suffix, C or ;H. A current code indicates a malfunction is present in the module displaying data. A history code indicates a problem existed sometime in the last 40 or 50 ignition cycles. When not accompanied by a current code of the same number, it's potential evidence of a previous problem, now resolved, that was not removed by clearing the codes.
More likely it's an indication of an intermittent malfunction.
Intermittent codes are the most challenging of the diagnostics. An intermittent code may have happened once, may have happened more than once but is inconsistent or may be happening on a regular basis but not at the time the codes are displayed. History codes can also be caused by a current malfunction in a system that is not operating at the time codes are displayed. An example is the rear window defogger which doesn't operate until the Body Control Module detects engine rpm. For history codes set by a module that does not operate with the key on and engine off, a special diagnostic tool called a Scan Tester is necessary to properly diagnose the malfunction.
Once the system has displayed all modules, it goes into the manual mode which allows selection of each module using combinations of Driver Information Center buttons. Manual mode can also be entered during the automatic sequence by pressing any button except E/M. Once the display shows Manual Diagnostics, select a module by pressing the OPTIONS button to go forward or the TRIP button to go back. Once a module is selected, a code is displayed, and if more than one are present;
press GAGES to go forward or FUEL to go back.
To exit the diagnostic mode at any time, press E/M. If you want to erase codes in a given module, press RESET
To reset the codes once in manual mode, press and hold RESET until it displays NO CODES Press OPTIONS to go to the next module. Repeat the steps until you have reset the codes in all the computer modules.
NOTE!! Only reset the codes IF you want to - it is NOT necessary to do this. Clearing a code does not repair a problem. You are simply erasing the evidence of it in the module's memory. If you clear the code/s, and extinguish the Check Engine Light, your emissions status ready will NOT allow you to pass an emissions test until you have completed the required driving cycles.
Once you have the codes, the next question is: What to do with the information?
First, consult the factory service manual. Any serious C5 Do-It-Yourself owner should invest in the Corvette Service Manual of the appropriate model year. The Service Manual is really a requirement if you want to understand and work on your C5.

Here is very good site of DTC definitions:


http://www.gearchatter.com


Make sure to include the H or C suffix!!


BC

 

thanks for the info , I had not checked for codes , I had to get the car home and leave in another car to go look at a car to buy for my son. once again thanks for the response and will post the codes when I pull them out.