Detroit DD13 EPA10 (2010-13) Fault Code: SPN 4335 FMI 2 (ACM) Diesel Exhaust Fluid Air Pressure Sensor – Drift
DESCRIPTION:
Diesel exhaust fluid (DEF) air pressure sensor – drift.
MONITORED PARAMETER:
Diesel exhaust fluid (DEF) air pressure.
TYPICAL ENABLING CONDITIONS:
1. Diesel exhaust fluid (DEF) dosing not active.
2. Diesel exhaust fluid (DEF) temperature greater than 0°C (32°F).
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Once per drive cycle.
TYPICAL DURATION:
Five seconds
DASH LAMPS:
MIL
VERIFICATION:
SCR quantity test.
PROBABLE CAUSES:
1. DEF metering unit air pressure sensor.
2. DEF metering unit air pressure sensor connector/harness.
3. DEF metering unit.
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