User manual

Fault Codes cont. - Section 6-B
The Display Freeze Frame Data checkbox adds Freeze Frame data for Fault Codes on
control modules using the KWP-2000 / CAN / UDS protocols. Keep in mind that many
control modules are not aware of the actual date and time, so they may display bogus
dates, just as they do with the factory scan tools. Note: Not all control modules fully
support this. As a rule of thumb, cars which were re-designed after 2003 will likely have
some control modules that support it, and older designs will not. There's no harm in leaving
this enabled in any case. However, un-checking it can make the results less cluttered in a
scan which contains many fault codes. In vehicles that do not support Freeze Frame, that
checkbox will not be present.
One component of Freeze Frame data is the Fault Priority number as described below:
Number
Meaning
0
Undefined by the manufacturer.
1
The fault has a strong influence on drivability, immediate stop is required.
2
The fault requires an immediate service appointment.
3
The fault doesn't require an immediate service appointment, but it should be
corrected with the next service appointment.
4
The fault recommends an action to be taken, otherwise drivability might be
affected.
5
The fault has no influence on drivability.
6
The fault has a long term influence on drivability.
7
The fault has an influence on the comfort functions, but doesn't influence the
car’s drivability.
8
General Note
Fault Frequency shows how many times the conditions that caused the fault have
recurred, during all driving cycles. So, if you have a fault with a Frequency of 11, then
conditions sufficient to trigger the fault have happened 11 times since the fault was stored.
The counter can have values from 0 to 254. It is incremented with each occurrence of the
fault (during all driving cycles).
The Reset counter is a number that has been pre-assigned to each fault, with the number
of problem-free driving cycles before the fault presumably clears itself. Each time a driving
cycle occurs, and the conditions sufficient to trigger the fault do NOT occur, then the reset
counter should go down by one. So if you have a fault with a Reset Counter of 40, if the
controller goes through a problem-free driving cycle then that number should go down to
39.