International SA 33 SPN 520895 FMI 13: Connector J4 Pin E13 has a load on this pin that has been configured as unused

SA 33 SPN 520895 FMI 13 on International / Navistar trucks means: Connector J4 Pin E13 has a load on this pin that has been configured as unused. The failure mode (FMI 13) is “out of calibration”.

Code details

Manufacturer: International (Navistar)
Applies to: International / Navistar body controller (ESC) and multiplexed modules
Fault code: SA 33 SPN 520895 FMI 13
J1939 SPN: 520895
FMI: 13 — Out of calibration
Reporting module: Body Controller (source address 33)
Component / signal: Relay Driver 15, Channel 7
Truck models in source: 3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600, BE 200, CE Bus, CXT, DuraStar, LoneStar, MXT, ProStar, RXT, TranStar, WorkStar
Logical signal: P_SSC_RD15

Cause and when it sets

Cause: Connector J4 Pin E13 is drawing current and it is configured as unused check configuration and or wiring harness

What to do next

Read active and inactive codes with the OEM service tool (Diamond Logic Builder can clear previously active codes) and note the occurrence count.
FMI 13 tells the shop the type of failure to test for: out of calibration.
Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.