20A801

20A801 - P15D1

Information saved in
DME

Fault code
20A801 - P15D1

Fault text
Coolant pump, deactivation: internal temperature too high

Fault description
The diagnostic function monitors the temperature of the
electronics.

Condition for fault identification
Test condition:
The fault is recognized when the water pump has responded
to overtemperature (> 160 °C) by deactivating its electronic
circuitry.
Potential problem source(s):
- Defective water pump
Terminal condition: Terminal 15
Voltage condition:
- Electrical system voltage > 10 V
Temperature condition:
- None
Time condition:
- None
Other conditions:
- No BSD fault

Condition for fault memory entry
This fault is logged in the control module's fault memory if
it remains present for longer than 10 sec.

Action in service
- Replace water pump

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

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

Service instruction
- none