Detroit DD15 EPA10 (2010-13) Fault Code: SPN 4337 FMI 2 (ACM) Diesel Exhaust Fluid Metering Unit Temperature – Drift
DESCRIPTION:
Diesel exhaust fluid (DEF) metering unit temperature – drift.
MONITORED PARAMETER:
DEF metering unit temperature.
TYPICAL ENABLING CONDITIONS:
DEF metering unit on, DEF tank refill not detected.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Continuous when enabling conditions met.
TYPICAL DURATION:
Five seconds
DASH LAMPS:
MIL
VERIFICATION:
Parked regeneration
PROBABLE CAUSES:
1. DEF metering unit temperature sensor.
2. DEF metering unit temperature sensor connector/harness.
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