Detroit DD16 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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