Group 28 Engine Control Module (ECM) Diagnostic Trouble Codes (DTCs) ECM SPN 84, Wheel-Based Vehicle Speed – MID 128 PID 84 ECM SPN 91, Accelerator Pedal Position 1 – MID 128 PID 91 ECM SPN 94, Engine Fuel Delivery Pressure – MID 128 PID 94 14 Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause:
FMI 9 • Abnormal update rate • Missing signal from VECU • Engine derate • SAE J1587 data link vehicle speed message does not exist, (VECU error) • VECU FMI 10 • Abnormal rate of change • Vehicle speed deemed inaccurate by VECU • MIL illuminated (13L engine only) • Vehicle speed sensor (VSS) • VECU FMI 13 • Out of calibration • No vehicle speed available to VECU • MIL illuminated (13L engine only) • Vehicle speed sensor (VSS) • VECU FMI 19 • Received network data in error • Vehicle speed deemed inaccurate by VECU • MIL illuminated (13L engine only) • Vehicle speed sensor (VSS) • VECU Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause:
FMI 9 • Abnormal update rate • Missing signal from VECU • N/A • SAE J1587 data link pedal information not available FMI 13 • Out of calibration • Pedal not connected to VECU • MIL illuminated (13L engine only) • Accelerator pedal sensor fault FMI 10 • Abnormal rate of change • Pedal position deemed inaccurate by VECU • MIL illuminated (13L engine only) • Accelerator pedal sensor fault FMI 19 • Received network data in error • Pedal position deemed inaccurate by VECU • MIL illuminated (13L engine only) • Accelerator pedal sensor fault Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause:
FMI 3 • Voltage above normal, or shorted to high source • Low fuel pressure sensor signal line voltage • N/A • Damaged contacts in harness • Faulty fuel pressure sensor • Open circuit. FMI 5 • Current below normal or open circuit • Low fuel pressure sensor signal line voltage • N/A • Damaged contacts in harness • Faulty fuel pressure sensor