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Home >> Porsche >> 2005 >> Cayenne Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> OBD (II) - Diagnostic Introduction, Fault Code Index >> OBD (II) >> Introduction >> Definition of terms >> Other ambient conditions

Other ambient conditions

Each time a fault occurs, two other operating conditions (actual values at the time the fault occurred), as well as the operating time and even the total number of kilometers/miles, are stored in DME 7.1.1.

This includes one memory entry for the first occurrence of the fault (the entry is stored) and a further entry for the last occurrence of the same fault (the entry is updated each time the fault recurs). This data can provide troubleshooting clues for difficult diagnoses, and can only be examined in the "extended fault memory" of the 9588 Porsche System Tester II. The list of possible ambient conditions overlaps at present with the freeze frames in order to store important ambient conditions even after the first occurrence of the fault.