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Home >> Porsche >> 2003 >> 911 Carrera 4S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Radio, Navigation, Telephone, Pcm & Park Assistant - Diagnosis) >> Introduction - external BOSE amplifier >> General information on the fault memory >> Fault memory Info key "F8"

Fault memory Info key "F8"

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In order to be able to assess the fault exactly, the fault memory Info key "F8" must be pressed. This information should be saved using the Save key [F4] and printed out. If a fault code is stored with "not present" status and no other problems are present, then the fault memory must be erased.

FAULT TYPE - FREQUENCY COUNTER/TEMPERATURE/VOLTAGE;SPEED/TIME OF OCCURRENCE

Supply voltage fault type The display shows which fault type has occurred:
  • no fault type
  • not present
Lock status of MOST ring The display shows which fault type has occurred:
  • lock
  • unlock
Supply voltage The value indicates the voltage at the time the fault occurred.
Fault counter When a fault first occurs, a fault entry is made in the fault memory and the counter is simultaneously set to 50.
If a fault is present, the counter is incremented by 1 for each "ignition on". The maximum count is 255.
The counter is decremented if the fault is no longer present. The fault memory is automatically erased when the counter reaches 0.
If the error occurs again when the counter is between 1 and 49, the counter is reset to 50.
Environment 1 ?