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SPN 4045 — Transfer Case Low Range Actuator

Safe to driveTo the nearest safe stop

J1939 code SPN 4045. Below — how the fault is worded at the factory by Ford Trucks, International, Knorr-Bremse EBS and MAN, and what the second half of the code (FMI) means in the standard.

Ford TrucksInternationalKnorr-Bremse EBSMAN

Ford Trucks

Ford Trucks/Ecotorq writes fault numbers in its own format: the code in the table below is a Ford code (hexadecimal, zero-padded), not a J1939 SPN. It matches the standard only where the signal itself is standard, and usually matches the title of this page by digit alone.

FMI 11Brake pressure sensor 2 short circuit. FODP code (scan tool): C0045.
FMI 13Brake pressure sensor 2 open circuit. FODP code (scan tool): C0045.

International

FMI 5Transfer Case Low Range Actuator — Transfer Case Low Range Solenoid Under Current Or Open Circuit
FMI 6Transfer Case Low Range Actuator — Transfer Case Low Range Solenoid Short To Ground

Knorr-Bremse EBS

FMI 3Central control unit, EEPROM unknown value fault recorder. Not identified

MAN

FMI 3Central control unit EEPROM fault recorder - Not identified

What FMI means in J1939

SPN 4045 FMI 34045/3 · 4045.3voltage above normal or shorted high
SPN 4045 FMI 54045/5 · 4045.5current below normal or open circuit
SPN 4045 FMI 64045/6 · 4045.6current above normal or grounded circuit
SPN 4045 FMI 114045/11 · 4045.11root cause not known
SPN 4045 FMI 134045/13 · 4045.13calibration out of range

Can I keep driving

Safe to drive. Below — how much time you have and what happens if you keep going.

What happens if you keep driving

Time you have: To the nearest safe stop

The gearbox or clutch has gone into limp mode: some gears may be unavailable and an automated box may stop shifting under load.

The main risk is being left on a climb with no gear and rolling back. Do not take a loaded truck into the hills; reaching level ground and a shop is fine.

Nearby: transmission

Scanner threw several codes at once? Paste the whole list — we will show which one is the root cause and which ones simply followed.