20A201

20A201 - P15E4

Information saved in
DME

Fault code
20A201 - P15E4

Fault text
Coolant pump for intercooler, power-reduced operation: Dry
run

Fault description
The diagnostic function monitors "cavitation" status in the
intercooler water pump.

Condition for fault identification
Test condition:
The fault is recognized when the pump reports cavitation.
Potential problem source(s):
- Air in system
- System leaking
- Intercooler water pump defective
Terminal condition: Terminal 15
Voltage condition:
- Electrical system voltage > 10 V
Temperature condition:
- None
Time condition:
- None
Other conditions:
- No faults should be present on the LIN bus

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 system for leaks and bleed it
- Replace intercooler water pump

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

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
- Excessive intake-air temperatures produce loss of power