P1515

1B9008 - P1515

Information saved in
DME

Fault code
1B9008 - P1515

Fault text
Engine switch-off time: signal implausible

Fault description
The diagnostic function monitors the time with the engine
off by checking plausibility against the drop in engine
temperature.

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

Condition for fault memory entry
The diagnostic fault code is logged when the fault remains
present for longer than 2 min.

Action in service
- Determine whether a reset has been executed, the battery
been disconnected, or other undervoltage diagnostic fault
codes have been logged
- Conduct fault diagnosis at instrument cluster
- Replace DME, if yes, under what conditions or with what
previous tests

Fault effect and breakdown warning
Breakdown notice:
- none
Possible apparent symptoms:
- none

Driver information
Warning light:
- ECE emissions warning lamp: off
- US emissions warning lamp: on
- ECE electronic engine power reduction: off
- US electronic engine power reduction: off
- CC message: none

Service instruction
- none