Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3031 FMI 3 (ACM) Diesel Exhaust Fluid Tank Temperature Sensor Circuit Failed High
DESCRIPTION:
Diesel exhaust fluid (DEF) tank temperature sensor circuit failed high.
MONITORED PARAMETER:
DEF tank temperature sensor.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
25% Derate. After four hours, engine will be idled after ignition key cycle.
VERIFICATION:
Engine Idle: one minute.
PROBABLE CAUSES:
1. DEF tank level/temperature sensor harness/connector.
2. DEF tank level/temperature sensor.
![International Truck ISIS - Oncommand Service Information Q4.2020 [04.2020]](https://www.ecuforcetruck.com/wp-content/uploads/2022/01/OnCommand-2020-1-300x300.png)
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