Error code wont clear

V5ETT

Busy user
Hi all.
I have reset some codes on my car via the onboard process.

There are however 2 codes on 1 section that won't clear when I press and hold the reset key. It still shows 2 codes. All the other codes have cleared back to zero values .

Has anyone else had this problem.

Car is a 2003 C5

Regards All
 
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