Traction control error after hyper flash module install
Thread Starter
Intermediate
Joined: Jan 2021
Posts: 47
Likes: 9
From: Irvine, CA
Traction control error after hyper flash module install
I’ve spent endless hours exorcising the electrical demons out of my C5. I have completed all the normal fixes (i.e., service the ground points, EBCM rebuild, new relays in the door modules, column lock/LMC5 module, re-solder the connections in the temperature control display, etc.) and I’ve been running clean for several months. Recently I upgraded my front turn signals, side markers, and tail lights to LEDs. I bought them all from VetteLights in a kit with a hyper flash module. Immediately after the module install, I started to get the all too familiar service traction sys and service active hndlg warnings. Before I break out my can of cuss words, I’m curious if anyone has experienced and fixed this problem before? Any ideas would be appreciated.
Last edited by Chuck Varela; Sep 16, 2022 at 12:48 AM. Reason: Spelling corrections
Melting Slicks
Joined: Dec 2018
Posts: 2,656
Likes: 1,386
From: Orange County, CA
This may seem like a dumb question but I promise it's relevant from my own experience: is the traction control button plate plugged in? The one that's between the shifter and armrest. My '01Z will throw a traction control fault if it's unplugged.
If that's not it, then we'll need to know what your current fault codes are. You can read them out from the DIC.
Mine has LED corner lights, halo LED taillights, "laser" side markers, and hyperflash harness. Also I'm in Costa Mesa, looks like you're local in Irvine.
If that's not it, then we'll need to know what your current fault codes are. You can read them out from the DIC.
Mine has LED corner lights, halo LED taillights, "laser" side markers, and hyperflash harness. Also I'm in Costa Mesa, looks like you're local in Irvine.
Race Director
Joined: Oct 2004
Posts: 13,597
Likes: 1,353
From: Home of the VOLS ! Knoxville, TN. Tennessee
St. Jude Donor '11-'12-'13, '15, '16-'17-'18-'19
Okay. This may seem odd to you, but it happened to me.
I was replacing my wiper stalk so I had to remove the kick panel to access the wiper harness.
Now if you remove it without removing the radio bezel, it's a bit of a wedge since the top right corner fits over the ignition cylinder but under the radio bezel. Tricky!
At any rate, when I completed my re-installation, those messages immediately came on the dash. I had no issues before.
Then I noticed that my ignition key was turning a bit harder than usual. It was pressed on.
I removed the panel again, and reinstalled it where the key cylinder was not wedged and the fit was cleaner. Apparently , I had wedged the panel and it did not fit right.
After the adjustment, I had no more issues with the traction control messages. It's worth a check.....
To really do it right, the radio bezel needs to come out, but I did not feel like going through it then.
I was replacing my wiper stalk so I had to remove the kick panel to access the wiper harness.
Now if you remove it without removing the radio bezel, it's a bit of a wedge since the top right corner fits over the ignition cylinder but under the radio bezel. Tricky!
At any rate, when I completed my re-installation, those messages immediately came on the dash. I had no issues before.
Then I noticed that my ignition key was turning a bit harder than usual. It was pressed on.
I removed the panel again, and reinstalled it where the key cylinder was not wedged and the fit was cleaner. Apparently , I had wedged the panel and it did not fit right.
After the adjustment, I had no more issues with the traction control messages. It's worth a check.....
To really do it right, the radio bezel needs to come out, but I did not feel like going through it then.
Thread Starter
Intermediate
Joined: Jan 2021
Posts: 47
Likes: 9
From: Irvine, CA
I’ve spent endless hours exorcising the electrical demons out of my C5. I have completed all the normal fixes (i.e., service the ground points, EBCM rebuild, new relays in the door modules, column lock/LMC5 module, re-solder the connections in the temperature control display, etc.) and I’ve been running clean for several months. Recently I upgraded my front turn signals, side markers, and tail lights to LEDs. I bought them all from VetteLights in a kit with a hyper flash module. Immediately after the module install, I started to get the all too familiar service traction sys and service active hndlg warnings. Before I break out my can of cuss words, I’m curious if anyone has experienced and fixed this problem before? Any ideas would be appreciated.
Thread Starter
Intermediate
Joined: Jan 2021
Posts: 47
Likes: 9
From: Irvine, CA
Okay. This may seem odd to you, but it happened to me.
I was replacing my wiper stalk so I had to remove the kick panel to access the wiper harness.
Now if you remove it without removing the radio bezel, it's a bit of a wedge since the top right corner fits over the ignition cylinder but under the radio bezel. Tricky!
At any rate, when I completed my re-installation, those messages immediately came on the dash. I had no issues before.
Then I noticed that my ignition key was turning a bit harder than usual. It was pressed on.
I removed the panel again, and reinstalled it where the key cylinder was not wedged and the fit was cleaner. Apparently , I had wedged the panel and it did not fit right.
After the adjustment, I had no more issues with the traction control messages. It's worth a check.....
To really do it right, the radio bezel needs to come out, but I did not feel like going through it then.
I was replacing my wiper stalk so I had to remove the kick panel to access the wiper harness.
Now if you remove it without removing the radio bezel, it's a bit of a wedge since the top right corner fits over the ignition cylinder but under the radio bezel. Tricky!
At any rate, when I completed my re-installation, those messages immediately came on the dash. I had no issues before.
Then I noticed that my ignition key was turning a bit harder than usual. It was pressed on.
I removed the panel again, and reinstalled it where the key cylinder was not wedged and the fit was cleaner. Apparently , I had wedged the panel and it did not fit right.
After the adjustment, I had no more issues with the traction control messages. It's worth a check.....
To really do it right, the radio bezel needs to come out, but I did not feel like going through it then.
Race Director
Joined: Oct 2004
Posts: 13,597
Likes: 1,353
From: Home of the VOLS ! Knoxville, TN. Tennessee
St. Jude Donor '11-'12-'13, '15, '16-'17-'18-'19
Thanks for your reply. It's funny you mention that, as I saw the same behavior. I got lazy and only removed the kick panel without removing the radio bezel panel on the first attempt and I experience the same tight ignition cylinder behavior. I removed the radio bezel to improve the fit. Unfortunately I'm still seeing this behavior with both panels properly fitted to the car. I present don't have the radio bezel panel on the car as I've troubleshooting and still seeing the issue. Thanks for the idea.
I have used a hyperflash unit in the past as many others have. I did not have that problem. Maybe they can send you a fresh one. I ordered mine from Amazon but I think they are all made by Corvette Envy. At least the one I bought is.
5th Gear
Joined: Aug 2023
Posts: 5
Likes: 0
From: Colorado
I just finished installing the hyper flash module and I get the traction control error when I use the hazards to test them. Normal use of turn signals doesn't appear to trigger the traction control warning.
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