International SA 33 SPN 520505 FMI 14: RPM 4 Channel 1 Analog Input Data Unavailable

SA 33 SPN 520505 FMI 14 on International / Navistar trucks means: RPM 4 Channel 1 Analog Input Data Unavailable. The failure mode (FMI 14) is “special instructions”.

Code details

Manufacturer: International (Navistar)
Applies to: International / Navistar body controller (ESC) and multiplexed modules
Fault code: SA 33 SPN 520505 FMI 14
J1939 SPN: 520505
FMI: 14 — Special instructions
Reporting module: Body Controller (source address 33)
Component / signal: RPM 4 Channel 1 Overcurrent
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: PwrMod4_Output1_Current_ Signal

Cause and when it sets

Cause: RPM 4 Channel 1 Analog Input Data (PGN 65313 , Byte 3) indicates a value of FFh

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 14 tells the shop the type of failure to test for: special instructions.
Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.