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- Jan 19, 2003
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- Corvette
- 2006 'Evil Stealth Black' Roadster
I recently had to pull codes on my Z06. Never having done it before, and then interpreting the codes I got, it required going on a bit of a fishing expedition through the "Search Forum" section. This gave me an appreciation for how difficult it can be to track down how to get a code, and how to understand what it means, particularly for those who either haven't done it before, or who aren't familiar with the process in the C5 Generation Corvette.
So I'm posting this as a resource to anyone new to the C5, or unfamiliar with the process.
How to Pull Codes:
1. Turn your key to the "ON" position, but do not start the engine.
2. Clear any present messages by pressing the RESET button.
3. Hold the OPTIONS button down, and press the FUEL button 4 times. (This will get you into the "codes" section of the DIC.
4. The computer will automatically display all the codes your car has created. It will cycle through each code every 3 seconds. (Have a pen and paper handy to write down the codes)
Note: Any code that ends in an "H" is a history code (something that has occurred in the past, but is not reporting as an error currently.)
5. Once the computer has finished going through all of its codes, press RESET to enter Manual Configuration mode. It should start with a module and show "NO CODES" or "# Codes."
6. To optionally reset codes once in manual mode, press and hold RESET until is displays "NO CODES."
7. Press OPTIONS to go into the next module (ie, from PCM, or Powertrain Control Module, to TCS, or Traction Control System.)
8. Repeat Step 6 until you have reset all the codes in all the computer modules.
Note: Only reset the codes if you want to- it is not necessary to reset them every time you pull the codes.
9. When finished, simply take your key out of the ignition.
How to Interpret Codes
Now, once you've pulled the codes (it will usually be a letter followed by four numbers), you can go to THIS SITE to get an interpretation of what they mean.
-Patrick
**Edited to insert instructions to enter MANUAL MODE shared in Post#11
So I'm posting this as a resource to anyone new to the C5, or unfamiliar with the process.
How to Pull Codes:
1. Turn your key to the "ON" position, but do not start the engine.
2. Clear any present messages by pressing the RESET button.
3. Hold the OPTIONS button down, and press the FUEL button 4 times. (This will get you into the "codes" section of the DIC.
4. The computer will automatically display all the codes your car has created. It will cycle through each code every 3 seconds. (Have a pen and paper handy to write down the codes)
Note: Any code that ends in an "H" is a history code (something that has occurred in the past, but is not reporting as an error currently.)
5. Once the computer has finished going through all of its codes, press RESET to enter Manual Configuration mode. It should start with a module and show "NO CODES" or "# Codes."
6. To optionally reset codes once in manual mode, press and hold RESET until is displays "NO CODES."
7. Press OPTIONS to go into the next module (ie, from PCM, or Powertrain Control Module, to TCS, or Traction Control System.)
8. Repeat Step 6 until you have reset all the codes in all the computer modules.
Note: Only reset the codes if you want to- it is not necessary to reset them every time you pull the codes.
9. When finished, simply take your key out of the ignition.
How to Interpret Codes
Now, once you've pulled the codes (it will usually be a letter followed by four numbers), you can go to THIS SITE to get an interpretation of what they mean.
-Patrick
**Edited to insert instructions to enter MANUAL MODE shared in Post#11
ZZRider said:Some additional info to supplement Patrick's original post that I found useful:
H = history (may be a solved or intermittent malfunction)
C = current
Manual mode can be entered at any time during the automatic sequence by pressing any button except "E/M"
Once the DIC displays "manual diagnostics", you may select a particular module by pressing "options" button to go forward or "trip" button to go backwards
Once a module is displayed and has codes for review, you may view the codes individually by pressing "gages" button to go forward and "fuel" button to go backwards (to review at your own pace and write down)
To exit the diagnostics mode at any time push "E/M" button
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