SPN 520290 — factory code Meritor (ex-WABCO) and SITRAK

Safe to driveDrivable, but watch it yourself

SPN 520290 is a manufacturer number outside the standard J1939 table: different makes can put different things under it. Below — how it is worded by Meritor (ex-WABCO) and SITRAK, and what the second half of the code (FMI) means.

Meritor (ex-WABCO)

FMI 9

Malfunction of Auxiliary Parkbrake Function

SITRAK

FMI 3	ECU internal monitoring reported a fault, computer monitoring level (MoC). Scan tool code: P060C. Effect: OBD limits torque immediately.
FMI 11	ECU internal monitoring reported a fault, computer monitoring level (MoC). Scan tool code: P060C. Effect: OBD limits torque immediately.
FMI 20	ECU internal monitoring reported a fault, computer monitoring level (MoC). Scan tool code: P060C. Effect: OBD limits torque immediately.
FMI 21	ECU internal monitoring reported a fault, computer monitoring level (MoC). Scan tool code: P060C. Effect: OBD limits torque immediately.
FMI 22	ECU internal monitoring reported a fault, computer monitoring level (MoC). Scan tool code: P060C. Effect: OBD limits torque immediately.
FMI 23	ECU internal monitoring reported a fault, computer monitoring level (MoC). Scan tool code: P060C. Effect: OBD limits torque immediately.
FMI 24	ECU internal monitoring reported a fault, computer monitoring level (MoC). Scan tool code: P060C. Effect: OBD limits torque immediately.
FMI 25	ECU internal monitoring reported a fault, computer monitoring level (MoC). Scan tool code: P060C. Effect: OBD limits torque immediately.
FMI 27	ECU internal monitoring reported a fault, computer monitoring level (MoC). Scan tool code: P060C. Effect: OBD limits torque immediately.

What FMI means in J1939

SPN 520290 FMI 3520290/3 · 520290.3	voltage above normal or shorted high
SPN 520290 FMI 9520290/9 · 520290.9	abnormal update rate
SPN 520290 FMI 11520290/11 · 520290.11	root cause not known
SPN 520290 FMI 20520290/20 · 520290.20	data drifted high
SPN 520290 FMI 21520290/21 · 520290.21	data drifted low

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 520255Light switch pulled for more than 60 seconds
• SPN 520256LCM output current to the interior lighting lamps is below 500 mA
• SPN 520257Trailer detection sensor faulty
• SPN 520258LCM output voltage is equal to or higher than the LCM supply voltage
• SPN 520260Actual CFV floor pressure above target value
• SPN 520310Exhaust gas temperature 1 below the lower plausible range limit
• SPN 520392SMU hardware monitoring module
• SPN 520393SMU hardware monitoring module
• SPN 520394SMU hardware monitoring module
• SPN 520398SMU hardware monitoring module

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