International Fault Code SPN 108 FMI 2: Barometric Pressure: Data Erratic, Intermittent Or Incorrect

Code details

Manufacturer

International (Navistar)

Applies to

International A26 (2024–2025)

Fault code

SPN 108 FMI 2

J1939 SPN

108

FMI

2 — Data erratic, intermittent or incorrect

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 2 tells the shop the type of failure to test for: data erratic, intermittent or incorrect.
• 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 108 FMI 2 — BARO Signal – Erratic, Intermittent or Incorrect
• International Fault Code SPN 108 FMI 3 — BARO Signal – Out of Range HIGH
• International Fault Code SPN 108 FMI 4 — BARO Signal – Out of Range LOW
• International Fault Code SPN 108 FMI 1 — Barometric Pressure: Data Valid But Below Normal Operational Range – Most Severe Level
• International Fault Code SPN 108 FMI 3 — Barometric Pressure: Voltage Above Normal, Or Shorted To High Source
• International Fault Code SPN 108 FMI 4 — Barometric Pressure : Voltage Below Normal, Or Shorted To Low Source
• Cummins Fault Code 221 — Ambient Air Pressure Sensor Circuit – shorted high
• Cummins Fault Code 222 — Ambient Air Pressure Sensor Circuit – shorted low