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8.5.2 Function Descriptions
This section describes the various functions of each diagnostic option.
8.5.2.1 DTC & FFD
When this function is selected, the screen displays a list of Stored and
Pending Codes. A snowflake button will display on the right side of the DTC
item if the Freeze Frame data is available for viewing. Tap Clear DTC to
erase codes.
Figure 8-16 Sample DTC & FFD Screen
⚫ Stored Codes
Stored codes are the current emission-elated DTCs from the ECM of the
vehicle. OBDII/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.
⚫ Pending Codes
These are codes that were generated during the last drive cycle, but
before the DTC actually sets two or more consecutive drive cycles are
needed. The intended use of this service is to assist the service
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