OK so far I have had no one give their opinion in tech so I'll try here.



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A couple weeks ago I started getting the intermittent STC and EBS lights and warnings.

It was intermittent at first and then got to where they stayed on. Then all of a sudden they disappeared, but as I was out driving the other day they came on again and of course won't go out now.

Then last week I was sitting at a stop sign preparing to turn right the car just died. I thought, or was hoping, I had it in third. Started it up and it ran fine.

Went to put the car up for a few days and I started it and the dash lights started going crazy, on and off, and I got the low voltage warning. Then the car stuggled to idle, it started bucking, (like you were turning the car on and off rapidly). But then sometimes I would turn it off, and it would fire right up. The warning lights still on though. And this time I got the srvice engine light as well. There was also a couple times it would just crank and not fire at all.

Pulled codes and they were all associated with the TCS 1232 through 1235 H C, to include 1255 H C.

I've read anything and everything I could on this issue the past few days and it's led me to Bill's write up on the ignition switch, along with kenhorse who suggested I try that repair.

I have a warranty on the car and was going to take it in but I don't want them to start throwing parts at something I may be able to fix myself. I am going to check my battery and look for grounding issues but I'm pretty well worthless with elctrical issues on these things.

Suggestions or comments? what do the experts think?

 

Well if anyone has any suggestions please PM.

 

Clear the codes and see if they come back. Starting but barely idling, I would be looking at the battery first to insure you've got enough power to run the car. Battery connections of course.

 

I had the same with my 02 coupe couple months ago. DIC message was System Fault Charge. My wife was driving home and she said it stalled on her at a light and was able to restart but turned right on our street and the thing died. I walked down and got it started but it seemed like half power. Got it home, changed the battery, changed the alternator (I pulled both from our other C5), checked cables to starter. It would just be dead at the key but still had lights working. Couple days later it started and I take it down the road to my service shop and next day it was fixed...IT WAS THE IGNITION SWITCH. $145 part and $145 labor. Been great since.

David

 

checked the batt. It was over 13 at off, and over 14 running.

Thanks

Mine would turn over but not start. I checked the check engine light tonight and it said primary fuel system something or the other. I don't recall exactly now the message. But that was most likely the surging I was getting. I cleared that code so we'll see.

Tonight I started it up and it fired right up, with no weird lights blinking or surging.

Checked one of the grounding points and cleaned it up but looked fine. The TC light and ABS light are still on, but I guess that's most likely my ebcm out.

Terribly frustrating. Guess I'll have to end up taking it in and see if I can have it diagnosed. No point in guessing and getting aggravated. I have a mech who is terrific with electrical but he's apprehensive about working on vettes, he says vette owners are too ****. But he has tons of experience with them as he isa GM certified tech.

Sorry for the ramble.

Thanks