International Fault Code SPN 105 FMI 4: IMT Signal – Out of Range LOW

Code details

Manufacturer

International (Navistar)

Applies to

International MaxxForce DT (2010–2019)

Fault code

SPN 105 FMI 4

J1939 SPN

105

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 105 FMI 4 — Engine Intake Manifold 1 Temperature: Voltage Below Normal, Or Shorted To Low Source
• International Fault Code SPN 105 FMI 2 — IMT Signal – Erratic, Intermittent, or Incorrect
• International Fault Code SPN 105 FMI 3 — IMT Signal – Out of Range HIGH
• International Fault Code SPN 105 FMI 0 — Engine Intake Manifold 1 Temperature: Data Valid But Above Normal Operational Range – Most Severe Level
• International Fault Code SPN 105 FMI 10 — Engine Intake Manifold 1 Temperature : Abnormal Rate Of Change
• International Fault Code SPN 105 FMI 18 — Engine Intake Manifold 1 Temperature : Data Valid But Below Normal Operating Range – Moderately Severe Level
• International Fault Code SPN 105 FMI 2 — Engine Intake Manifold 1 Temperature: Data Erratic, Intermittent Or Incorrect
• International Fault Code SPN 105 FMI 3 — Engine Intake Manifold 1 Temperature: Voltage Above Normal, Or Shorted To High Source