P15CD

20A608 - P15CD

Information saved in
DME

Fault code
20A608 - P15CD

Fault text
Turbocharger coolant pump, shutdown: Pump blocked

Fault description
The diagnostic function monitors the voltage in the signal
wire to the turbocharger water pump.

Condition for fault identification
Test condition:
The fault is recognized when the voltage on the signal wire
for the turbocharger water pump is between 2.19 and 4.01 V
while a control signal is being transmitted.
Potential problem source(s):
- Foreign matter
- Stiction
- Coolant mixture ratio incorrect
- Turbocharger water pump defective
Terminal condition: Terminal 15
Voltage condition:
- Electrical system voltage > 10 V
Temperature condition:
- Engine temperature > 81 °C
Time condition:
- 30 sec. after the turbocharger water pump is activated or
deactivated
Other conditions:
- No internal DME faults should be present

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
- Check coolant (foreign matter, mixture ratio)
- Replace turbocharger water pump

Fault effect and breakdown warning
Breakdown notice:
- Drive with moderation, do not shut down hot
- Proceed to service facility
Possible apparent symptoms:
- When the fault occurs in 4 driving cycles then a CC
message is generated. If overheating occurs, leaks can form
in the cooling system, resulting in overheating/engine
damage/breakdown.

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: on

Service instruction
- none