Mazda 6 Training Manual page 356

Present Failure Indication Mode
• In present failure indication mode, present failures in the control system circuits (open, short circuits) are
detected, and the flashing of the rear defroster indicator light on the climate control unit indicates the DTCs
shown in the table below.
Past Failure Indication Mode
• In past failure indication mode, past failures (intermittent problems) in the input sensor circuits (open, short
circuits) are stored, and the flashing of the rear defroster indicator light on the climate control unit indicates the
DTCs shown in the table below. Erase DTCs from the memory after failures have been corrected so they are
not maintained as past failures.
CONTROL SYSTEM
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U–37