I have a C6 base year 2005 and I got 2 problems:
1: sometime i get Code C0242 and I also get ....Engine reduce Power.... I stop the car and take away the negative cable from the Battery, waiting 5 minutes then start and no problem this happens sometimes.

2:  I get always U1000 Class 2 symptom 00. If I delete all codes and start and I can drive many miles without no problem and no Engine reduce power but I get always code U1000. Please give me some advice!

Code C0242: It’s like the car’s way of saying, “Hey, something’s fishy in the traction control department!” 🚗🔍

Here’s the lowdown:

1. What It Means: The Engine Control Module (ECM) has detected a traction control malfunction. Yep, the TCS (Traction Control System) is giving it side-eye. Maybe it’s feeling a bit rebellious today. 🤨

2. Possible Culprits:

   • Electronic Brake Control Module (EBCM): This little brainbox is responsible for managing your car’s stability and traction. If it’s acting up, it could trigger the code.
   • Engine Control Module (ECM): The ECM is like the car’s brain. If it’s grumpy, it might throw a tantrum in the form of C0242.
   • Electrical Gremlins: Loose wires, bad connections—those pesky gremlins can mess things up.

3. What to Do:

   • First, check if you’ve recently been through a touchless car wash. Yes, seriously! Sometimes water splashes and electronic systems don’t get along like old pals at a reunion. 🌊
   • If the car wash isn’t the culprit (and you’ve ruled out any other recent aquatic adventures), consider a trip to the dealership. They’ll give your Corvette a spa day—diagnose, reset, and maybe even throw in a complimentary air freshener. 🚿

The U1000 code isn’t just any code; it’s like the car’s way of saying, “Hey, communication breakdown in the Matrix!” 🌐

So, what’s the scoop on U1000? Here’s the lowdown:

• Definition: U1000 stands for “Invalid or Missing Data for Primary ID.” Fancy, right? It’s like the car’s version of a cryptic crossword clue. 🔍

• Translation: Imagine your car as a bustling cocktail party, and all the control modules (ECM, BCM, EBCM, and their friends) are mingling, sharing gossip about tire pressure, fuel mixtures, and who’s got the best exhaust note. Now, U1000 happens when two modules—one sipping digital martinis—suddenly stop exchanging pleasantries. They’re like, “Sorry, can’t chat right now; I’m buffering.” 🤖

• Probable Causes:

  • Faulty Wiring: Sometimes, wires get tangled like earphones in your pocket. Check those connections!
  • Failed Control Modules: Imagine a module throwing a digital tantrum. Yep, that’s a possibility.
  • Software Gremlins: Bugs in the system? Maybe the car needs a software update. 🐛
  • Low Voltage: Picture your car as a smartphone with a dying battery. Communication suffers.
  • Misbehaving Sensors: Those little data collectors can go rogue.

Fact #3: But fear not! Here’s your troubleshooting toolkit:

• Step 1: Wiggle those wires. Not too aggressively—just a gentle coaxing. 🤞
• Step 2: Check the ECM (Power Control Module). It’s like the car’s brain, nestled behind the left front wheel well. Give it a pep talk: “Hey, buddy, let’s communicate better!”
• Step 3: If all else fails, consider a software update. Maybe your car’s just feeling outdated. 📲

Thank you Adam for quick answer!

I have search after all I can find of electrical connections. I have taken them apart and washed and sprayed with contact spray.

I have removed the fuse box in the engine compartment and taken it apart, washed it and used contact spray.Cleaned all ground connections in the engine compartment also under the battery. A new battery and also a new throttle pedal.

All electrical connections under the Passengers feet are cleaned and contact spray.
I now just drive the car this month out then into the garage and lift it up and look under the car for all the connections and wash and so on.
Now I have received some more tips from you, so I just have to keep looking. 

Regards

Göran