1B9608

1B9608 - P15E9

Information saved in
DME

Fault code
1B9608 - P15E9

Fault text
Engine switch-off time, plausibility: time too long in
correlation to engine-coolant cooling

Fault description
The diagnostic function monitors the engine's calculated
downtime by comparing it with the drop in coolant
temperature while the engine is stationary.

Condition for fault identification
Test condition:
The fault is recognized when the time required for engine
cooling is implausibly long relative to the calculated time.
Potential problem source(s):
- Collateral fault stemming from a defective engine
temperature sensor
- Collateral fault stemming from incorrect time signal from
instrument cluster
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- Engine temperature at engine shutdown > 80 °C
Time condition:
- None
Other conditions:
- Engine ON

Condition for fault memory entry
This fault is logged in the control module's fault memory
immediately.

Action in service
- Watch for diagnostic fault code entries related to the
coolant temperature sensor, replace the coolant temperature
sensor as indicated
- Check whether the instrument cluster time is correct

Fault effect and breakdown warning
Breakdown notice:
None
Possible apparent symptoms:
None

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

Service instruction
None