Condition for fault identification

Test condition:

The fault is recognized when measured engine downtime deviates from the calculated time.

Potential problem source(s):

• Instrument cluster is transmitting incorrect system time, stems from a reset, disconnected battery, etc.
• Defective instrument cluster
• Defective DME

Terminal condition: none

Voltage condition:

• Electrical system voltage > 10 V

Temperature condition:

• Engine temperature at engine shutdown > 78°C

Time condition:

• Time with engine off less than 12 min. or longer than 4 hours

Other conditions:

• Engine on