DESCRIPTION:
Diesel Exhaust Fluid (DEF) pump supply current high.
MONITORED PARAMETER:
DEF pump supply current.
TYPICAL ENABLING CONDITIONS:
1. Dosing enabled.
2. Ambient temperature is greater than 0°C (32°F) or dosing enabled.
3. Ambient temperature is less than -5°C (23°F).
4. DEF Pump/Tank heater is commanded on.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Continuous when enabling conditions met.
TYPICAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERIFICATION:
SCR ADS self check.
PROBABLE CAUSES:
1. DEF pump harness connector/wiring.
2. DEF pump failure.
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