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Detroit DD15 EPA10 (2010-13) Fault Code: SPN 520231 FMI 13 (MCM, CPC, ACM) Fuel Mass Signal Not Available via Controller Area Network

NOTE: Please see the step by step troubleshooting procedures for this specific code.

1. If any engine ECM has been recently programmed, ensure the parameters are correct.
2. Turn key off, wait 5 minutes, turn back on. If code doesn’t go active, clear code and release truck to customer.
3. Follow 625-9 for troubleshooting.