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SPN 520517 — factory code Meritor (ex-WABCO) and SITRAK

Safe to driveUntil the next service

SPN 520517 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 13Parameter error of wheel diameters and polewheel teeth number
FMI 31Tire Size Compensation Memory Bit

SITRAK

FMI 2DEF consumption deviation too large: driver inducement, level 3. Scan tool code: P1072. Effect: Torque limited, MIL on, power may drop to 60%.

What FMI means in J1939

SPN 520517 FMI 2520517/2 · 520517.2data erratic or intermittent
SPN 520517 FMI 13520517/13 · 520517.13calibration out of range
SPN 520517 FMI 31520517/31 · 520517.31condition exists (see manufacturer description)

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: Until the next service

A standalone fault with no immediate consequences for driving.

Show the codes at the next service. If a second code from the same system appears, stop putting it off.

Nearby: other

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