Detroit DD13 GHG14 (2014-16) Fault Code: SPN 5503 FMI 13 (ACM) Fuel Mass Signal Not Available via Controller Area Network
NOTE: Please see the step by step troubleshooting procedures for this specific code.
If any engine compute rhas been programmed or modified lately, clear codes and see if they return. If they do:
1. Check ECM programming.
2. Follow troubleshooting on 625-9.
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