Detroit DD15 EPA10 (2010-13) Fault Code: SPN 103 FMI 1 (MCM) Turbocharger Speed Below Threshold (High Box)
DESCRIPTION:
Turbocharger speed below threshold (high box).
TYPICAL ENABLING CONDITIONS:
Turbocharger speed above threshold.
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
10% derate
PROBABLE CAUSES:
1. Air intake system has leaks – hoses, CAC, etc…
2. Turbocharger speed sensor wiring/connector.
3. Turbocharger speed sensor.
![JOHN DEERE PARTS ADVISOR & HITACHI 2.24.2 [2023.07] - ECUFORCETRUCK EPC](https://i0.wp.com/www.ecuforcetruck.com/wp-content/uploads/2023/09/1.png?resize=300%2C300&ssl=1)
![JOHN DEERE PARTS ADVISOR & HITACHI 2.24.2 [2023.07] - ECUFORCETRUCK EPC](https://www.ecuforcetruck.com/wp-content/uploads/2023/09/2.png)
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