Group 28 Engine Control Module (ECM) Diagnostic Trouble Codes (DTCs) ECM SPN 190, Engine Speed – MID 128 PID 190 ECM SPN 228, Speed Sensor Calibration – MID 128 PID 228 ECM SPN 237, Vehicle Identification Number – MID 128 PSID 161/162 27 FMI 1 • Data valid but below normal operational range - Most severe level • Engine idle speed below desired speed • MIL illuminated • High fuel consumption • Low engine torque production • Faulty fuel injector • Low cylinder compression • Engine friction is too high Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause:
FMI 0 • Data valid but above normal operational range - Most severe level • Engine is/was overspeeding • Red engine shutdown lamp illuminated • Engine oil entering cylinders • Faulty crankcase oil filter • Possible engine brake engaged causing engine overspeeding • Possible transmission downshift causing engine overspeeding Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 9 • Abnormal update rate • SAE J1587 data link calibration factor message does not exist. (VECU error). • Wrong trip data • Vehicle ECU FMI 11 • Failure mode not identifiable • SAE J1587 data link calibration factor message does not exist. (VECU error).
• Wrong trip data • Vehicle ECU Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 2 • Data erratic, intermittent or incorrect • No answer from VIN • Yellow electronic malfunction lamp illuminated • Engine will not start • Data link error • ECM • Missing VIN in other ECM’s (commonly VECU, LCM) FMI 12 • Bad intelligent device or component • Bad answer from VIN • Yellow electronic malfunction lamp illuminated • Engine will not start • ECM • Mismatched VIN sent from other ECM’s (commonly VECU, LCM)