service traction sys, shocks inoperative, reduced engine power codes
Thread Starter
4th Gear
Joined: Oct 2024
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service traction sys, shocks inoperative, reduced engine power codes
I purchased my first 99 corvette about 2 months ago, and yesterday I drove it around 150 miles to Kalamazoo, MI with a friend, everything is fine. But the next morning, I see the following codes:
service traction system
shocks inoperative
check tire pressure
reduced engine power (when this shows, the radio turns off)
But the "reduced engine power" goes away after some minutes, then comes back, then goes away...
Then all the codes goes away in the afternoon and during the night, everything seems fine again. Then the next morning, same codes appeared.
So I think is it because I'm in Michigan, it's cold and moist in the morning and I probably have some electric problem? Any help is much appreciated!
service traction system
shocks inoperative
check tire pressure
reduced engine power (when this shows, the radio turns off)
But the "reduced engine power" goes away after some minutes, then comes back, then goes away...
Then all the codes goes away in the afternoon and during the night, everything seems fine again. Then the next morning, same codes appeared.
So I think is it because I'm in Michigan, it's cold and moist in the morning and I probably have some electric problem? Any help is much appreciated!
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,630
Likes: 4,076
From: Cape Coral, Florida
If you have a scan tool let us know what trouble codes you may have…if not you can use the DIC which has a “built in” code reader…video below how to accomplish this.
Thread Starter
4th Gear
Joined: Oct 2024
Posts: 4
Likes: 0
Pro
Joined: Jan 2001
Posts: 650
Likes: 349
From: San Jose CA
Ok - good chance the is a ground issue - well known problems with the C5
Start here
https://www.corvetteforum.com/forums...tion-long.html
Start here
https://www.corvetteforum.com/forums...tion-long.html
