SPN 4026 — factory code International and Renault Trucks

Safe to driveDrivable, but watch it yourself

SPN 4026 is a manufacturer number outside the standard J1939 table: different makes can put different things under it. Below — how it is worded by International and Renault Trucks, and what the second half of the code (FMI) means.

International

FMI 5	Mirror Heat 2 — Right Mirror Heat Undercurrent
FMI 6	Mirror Heat 2 — Right Mirror Heat Overcurrent

Renault Trucks

FMI 4

No messages from the ABS/EBS unit. Repair: Check the ABS/EBS unit for faults, check the CAN bus communication with the EBS unit, the resistance between the two wires (22, 49) is 60 ohms.

What FMI means in J1939

SPN 4026 FMI 44026/4 · 4026.4	voltage below normal or shorted to ground
SPN 4026 FMI 54026/5 · 4026.5	current below normal or open circuit
SPN 4026 FMI 64026/6 · 4026.6	current above normal or grounded circuit

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: Drivable, but watch it yourself

This is an electrical fault: an open, a short or a bad contact in the sensor circuit. The value it measures is most likely fine.

You can drive. But until the circuit is repaired this system runs blind and cannot warn you about a real failure.

Nearby: other

• SPN 4018Internal memory error
• SPN 4022
• SPN 4023
• SPN 4024
• SPN 4025CAN bus fault, short circuit
• SPN 4027CAN bus fault, open circuit
• SPN 4028
• SPN 4029
• SPN 4030Service Brake Circuit 2 Air Tank Drain Valve
• SPN 4031Service Brake Supply Air Tank Drain Valve

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