International Fault Code SPN 98 FMI 4: Engine Oil Level: Voltage Below Normal, Or Shorted To Low Source

Code details

Manufacturer

International (Navistar)

Applies to

International A26 (2024–2025)

Fault code

SPN 98 FMI 4

J1939 SPN

98

FMI

4 — Voltage below normal, or shorted to low source

Truck models in source

3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600, BE 200, CE Bus, CXT, DuraStar, LoneStar, MXT, ProStar, RXT, TranStar, WorkStar

What to do next

• Read active and inactive codes with the OEM service tool (Diamond Logic Builder can clear previously active codes) and note the occurrence count.
• FMI 4 tells the shop the type of failure to test for: voltage below normal, or shorted to low source.
• Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.

Related fault codes

• International Fault Code SPN 98 FMI 14 — Engine Oil Level: Special Instructions
• International Fault Code SPN 98 FMI 17 — Engine Oil Level: Data Valid But Below Normal Operating Range – Least Severe Level
• International Fault Code SPN 98 FMI 3 — Engine Oil Level: Voltage Above Normal, Or Shorted To High Source
• Cummins Fault Code 471 — Engine Oil Level Low – Maintenance
• PACCAR Fault Code P150F — Engine Oil Level – Data Valid But Too Low, Moderately Severe
• PACCAR Fault Code P1682 — Engine Oil Level – Current Too Low or Open Circuit on ECU (D420) Pin (B35)
• PACCAR Fault Code P250A — Engine Oil Level – Data Valid But Too Low, Least Severe
• PACCAR Fault Code P250C — Engine Oil Level – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (B35)