Mack Trucks — Mack Trucks Service Manual (EN)

Group 28 Engine Control Module (ECM) Diagnostic Trouble Codes (DTCs) ECM SPN 98, Engine Oil Level – MID 128 PID 98 16 Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause:

FMI 1 • Data valid but above normal operational range • Critically below range • Red engine shutdown or yellow electronic malfunction lamps illuminated dependent of severity • Low oil level leakage • Critically low oil level FMI 4 • Voltage below normal, or shorted to low source • Short Circuit - Positive side • Oil level can not be measured • Engine Oil Level (EOL) sensor failure • Faulty harness FMI 5 • Current below normal or open circuit • Short Circuit +, Positive side • Open Circuit +, Positive side • Open Circuit- Negative side • Oil level can not be measured • Engine Oil Level (EOL) sensor failure • Faulty harness FMI 18 • Data valid but below normal operating range - Moderately severe level • Moderately below range • Critically below range • Red engine shutdown or Yellow electronic malfunction lamps illuminated dependent of severity • Low oil level leakage • Moderately low oil level