International Fault Code SPN 51 FMI 3: Engine Throttle Position (ETP) Signal – Out of Range HIGH

Code details

Manufacturer

International (Navistar)

Applies to

International MaxxForce DT (2010–2019)

Fault code

SPN 51 FMI 3

J1939 SPN

51

FMI

3 — Voltage above normal, or shorted to high 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 3 tells the shop the type of failure to test for: voltage above normal, or shorted to high 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 51 FMI 3 — Engine Throttle Valve 1 Position 1 : Voltage Above Normal, Or Shorted To High Source
• International Fault Code SPN 51 FMI 0 — Engine Throttle Position (ETP) Fault – Over Temperature
• International Fault Code SPN 51 FMI 11 — Engine Throttle Position (ETP) Operation Fault – Undervolt, Over Amp, Over Temp / ETP H-Bridge Electrical Check
• International Fault Code SPN 51 FMI 2 — Engine Throttle Position (ETP) Does Not Agree with Commanded Position
• International Fault Code SPN 51 FMI 4 — Engine Throttle Position (ETP) Signal – Out of Range LOW
• International Fault Code SPN 51 FMI 5 — Engine Throttle Position (ETP) Open Load / Circuit
• International Fault Code SPN 51 FMI 7 — Engine Throttle Position (ETP) Does Not Agree with Commanded Position
• International Fault Code SPN 51 FMI 4 — Engine Throttle Valve 1 Position 1 : Voltage Below Normal, Or Shorted To Low Source