DTC description and freeze frame

   #1  

stanley121

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Hi,
I have a few question about scan report in Audi A6. Mileage: 86822km-53948mi

For example, VCDS read fault in Engine module:

13272 - Catalyst System; Bank 1
P0420 00 [237] - Efficiency Below Threshold
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 3
Mileage: 81982 km
Date: 2019.11.19
Time: 13:01:15

My questions:
1. Faults status (color green) is not the same as fault desctription (color red). Why?

This Fault status value: 00000001- active By using desctription from forum.

Is different from this:
MIL ON - Confirmed - Tested Since Memory Clear

2. My thinking is correct?:

MIL ON - Confirmed - Tested Since Memory Clear- it is a moment when the fault was record
Fault Status: 00000001- it is a moment when I do the scan with VCDS
That is right?

3. Fault Status: 00000001 Means that fault is active. Is it still active since when it was recorded in 2019.11.19 time 13:01:15

4. Have you newest dectription for value: [237] -? And VCDS Fault Anathomy>

On forum is only old.

Best regards
 
   #2  

Uwe

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The stuff in red comes from the bits in the [237].

The Freeze-Frame data, including the status and priority is pulled separately from the fault code itself.

-Uwe-
 
   #3  

stanley121

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The stuff in red comes from the bits in the [237].

The Freeze-Frame data, including the status and priority is pulled separately from the fault code itself.

-Uwe-

Hi, I know that.

I don't know:
MIL ON - Confirmed - Tested Since Memory Clear- it is a moment when the fault was record?
Fault Status: 00000001- it is a moment when I do the scan with VCDS?

It looks like this parameters: [237] and Fault Status display values in different moments in the DTC.
 
   #4  

Jack@European_Parts

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Could you not cross check by creating and clearing DTC's and counting the last time stamp to answer your own question?

Get verified & JPPSG yet?
 
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