MaxiCheck MX808TS, User Manual, Page: 52 / 172

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Stored Codes
Stored codes are the current emission related DTCs from the ECM of
the vehicle. OBD II/EOBD Codes have a priority according to their
emission severity, with higher priority codes overwriting lower priority
codes. The priority of the code determines the illumination of the MIL
and the codes erase procedure. Manufacturers rank codes differently,
so expect to see differences between makes.
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Pending Codes
These are codes whose setting conditions were met during the last
drive cycle, but need to be met on two or more consecutive drive cycles
before the DTC actually sets. The intended use of this service is to
assist the service technician after a vehicle repair and after clearing
diagnostic information, by reporting test results after a driving cycle.
a) If a test failed during the driving cycle, the DTC associated with that
test is reported. If the pending fault does not occur again within 40
to 80 warm-up cycles, the fault is automatically cleared from
memory.
b) Test results reported by this service do not necessarily indicate a
faulty component or system. If test results indicate another failure
after additional driving, then a DTC is set to indicate a faulty
component or system, and the MIL is illuminated.
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Freeze Frame
In most cases the stored frame is the last DTC that occurred. Certain
DTCs, which have a greater impact on vehicle emission, have a higher
priority. In these cases, the top prioritized DTC is the one for which the
freeze frame records are retained. Freeze frame data includes a
“snapshot” of critical parameter values at the time the DTC is set.
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Clear DTC
This option is used to clear all emission related diagnostic data such as,
DTCs, freeze frame data and manufacturer specific enhanced data
from the vehicle’s ECM.
A confirmation screen displays when the clear codes option is selected
to prevent accidental loss of data. Select Yes on the confirmation
screen to continue or No to exit.