Group 28 Engine Control Module (ECM) Diagnostic Trouble Codes (DTCs) ECM SPN 111, Engine Coolant Level – MID 128 PID 111 21 FMI 10 • Abnormal rate of change • Engine Coolant Temperature sensor output is showing a constant value • May affect vehicle driveability • MIL illuminated • Faulty Sensor • Faulty harness FMI 13 • Out of Calibration • Sensor out of range • Sensor indicates a invalid value • MIL illuminated • Faulty Sensor FMI 16 • Data valid but above normal operating range - Moderately severe level • Coolant temperature indicates moderate upper limit • Engine derate • Yellow electronic malfunction lamp illuminated • Extreme driving condition • Faulty coolant thermostat • Malfunctioning fan • Blocked radiator FMI 17 • Data valid but below normal operating range - Least severe level • Sensor out of range • Sensor indicates a invalid value • MIL illuminated • Faulty Sensor Type of fault:
FMI Description: Fault Condition: Possible Symptoms: Possible Cause:
FMI 1 • Data valid but below normal operational range - Most severe level • Critically below range • Coolant level can not be detected • Engine derate • Red engine shutdown lamp illuminated • Coolant level can not be detected • Coolant level below range • Faulty harness FMI 3 • Voltage above normal, or shorted to high source • Short Circuit +, measuring line • Coolant level can not be detected • Coolant level can not be detected • Yellow electronic malfunction lamp illuminated • Faulty harness • Faulty harness connector • Faulty level sensor FMI 4 • Voltage below normal, or shorted to low source • Short Circuit -, measuring line • Coolant level can not be detected • Coolant level can not be detected • Yellow electronic malfunction lamp illuminated • Faulty harness • Faulty harness connector • Faulty level sensor FMI 5 • Current below normal or open circuit • Open Circuit • Coolant level can not be detected • Coolant level can not be detected • Yellow electronic malfunction lamp illuminated • Faulty harness • Faulty harness connector • Faulty level sensor