Volvo Penta D13 Operator's Manual page 58

Fault Code Register
MIL: DEFPmpSup
Power supply failure to Pump.
MIL: DEFPmpVlv
Electrical or mechanical failure at Urea Injector.
MIL: DEFPress
Low Urea pressure or electrical failure to pressure sensor in pump.
MIL: DEFPump
Low urea pressure or electrical failure to urea pump.
MIL: DEFPumpL
AUS/DEF Pump
Blocked pump filter or restriction in the pump inlet connector.
MIL: DEFTemp
High temperature in urea tank or electrical failure.
MIL: NOx Conv
NOx concentration out of expected range.
• Nox-sensor work outside their measuring range.
• Electrical failure.
Wrn Underspeed
Engine Speed.
Engine is emergency stopped.
Engine revolutions are lower than expected.
MIL: NoxSenSin
NOx-sensor In to muffler communication failure.
MIL: SensSupA
Power supply to sensor failure.
MIL: SenSupB
Power supply to sensor failure.
MIL: UQS Com
Communication failure with Urea Quality Sensor. The quality of urea can not be measured reliably.
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