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Current /Present
Current DTC’s are trouble codes that are stored in the
ECU when both continuous and non-continuous (2 trip)
monitors fail. Current DTC’s command the MIL On the
instant they are stored in the ECU.
Current DTC’s can be cleared using the
Clear DTC’s function of the Scantool, or
when the ECU monitor (2 trip monitor) has
ran and completed 40 consecutive trips
without a fault.
History/Stored
History DTC’s are trouble codes stored in the ECU
when continuous and non-continuous monitors (2nd trip)
fail. History DTC’s set in conjunction with Current DTC’s
and are not cleared by the ECU monitor. History DTC’s
can only be cleared using the Clear DTC function of the
Scantool.
History DTC’s set in conjunction with
Current DTC’s and are not cleared by the
ECU monitor. History DTC’s can only be
cleared using the Clear DTC function of the
Scantool.
Pending
Pending codes are codes that prep themselves when
they determine a fault that engine cycle. They are
basically a preliminary investigation for your engine. To
simplify, a random malfunction can occur during the
current drive cycle but only happen for a split second.
This will cause the malfunction to throw a “pending
code”.
Typically pending codes are not to severe
but you shouldn’t ignore them either, it can
be cleared using the Clear DTC’s function
of the Scantool
Permanent
Permanent DTC’s are trouble codes that are stored in
the ECU when continuous and non-continuous monitors
fail. Permanent DTC’s are set in conjunction with
Current and History DTC’s.
Permanent DTC’s cannot be cleared using
the Clear DTC’s function on the Scantool.
Instead, Permanent DTC’s are cleared
when the ECU monitor completes and
passes three consecutive trips.
For Volkswagen
Active/static
Active/Static means that the fault is happening at the
moment and can/should be take care of.
T
he fault cannot be cleared directly by
using the Clear DTC’s function of the
diagnostic tool and the internal fault of the
car must be eliminated manually
Passive/sporadic
It is a fault that has occurred in the past and can be
cleared by Scantool, and user should to check if the
DTC will appear again.
/
READ LIVE DATA
Real-time information about various sensors is called “Live Data”. Live Data includes
parameter identifications (PIDs)
of
the running engine such as oil pressure, temperature, engine speed, fuel oil temperature, coolant temperature, intake air
temperature, etc. Based on these parameters, we can predict directly where the problem lies, which helps to narrow the
scope of maintenance. For some vehicles, during their actual operation, the problems such as performance characteristics
or sensitivity reduction, can be evaluated using live data.
Click the magnifying glass on the top right, you can search for related PIDs based on keywords
Summary of Contents for IP819TP
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