Current DTC’s are trouble codes that are stored in the ECU Current DTC’s can be cleared using the Clear
when both continuous and non-continuous (2 trip) monitors DTC’s function of the Scantool, or when the
fail. Current DTC’s command the MIL On the instant they are ECU monitor (2 trip monitor) has ran and
Current /Present
History/Stored
completed 40 consecutive trips without a fault.
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 codes are codes that prep themselves when they
determine a fault that engine cycle. They are basically a Typically pending codes are not to severe but
preliminary investigation for your engine. To simplify, a you shouldn’t ignore them either, it can be
random malfunction can occur during the current drive cycle cleared using the Clear DTC’s function of the
but only happen for a split second. This will cause the
malfunction to throw a “pending code”.
Permanent DTC’s cannot be cleared using the
Clear DTC’s function on the Scantool. Instead,
Permanent DTC’s are cleared when the ECU
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.
The fault cannot be cleared directly by using
Active/Static means that the fault is happening at the moment
and can/should be take care of.
the Clear DTC’s function of the diagnostic tool
and the internal fault of the car must be
eliminated manually
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.
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