SPN 520253 — factory code SITRAK and Volvo

Safe to driveDrivable, but watch it yourself

SPN 520253 is a manufacturer number outside the standard J1939 table: different makes can put different things under it. Below — how it is worded by SITRAK and Volvo, and what the second half of the code (FMI) means.

SITRAK

FMI 11

T50 signal failure. Scan tool code: P2530. Effect: The engine cannot be started from terminal 50.

Volvo

FMI 3	LCM output voltage is equal to or higher than the LCM supply voltage. Wiring between the LCM, the light switch, or the lamps shorted to the supply wire.
FMI 4	LCM output voltage is below 2 V. Wires between the LCM, the lamps, or the light switch shorted to ground.

What FMI means in J1939

SPN 520253 FMI 3520253/3 · 520253.3	voltage above normal or shorted high
SPN 520253 FMI 4520253/4 · 520253.4	voltage below normal or shorted to ground
SPN 520253 FMI 11520253/11 · 520253.11	root cause not known

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 520247ESC Memorybit Was Activated
• SPN 520248
• SPN 520250
• SPN 520251
• SPN 520252
• SPN 520254
• 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

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