International SA 33 SPN 168 FMI 16: AC module over temperature condition.

Code details

Manufacturer

International (Navistar)

Applies to

International / Navistar body controller (ESC) and multiplexed modules

Fault code

SA 33 SPN 168 FMI 16

J1939 SPN

168

FMI

16 — Data valid but above normal range (moderately severe)

Reporting module

Body Controller (source address 33)

Component / signal

Electrical Potential (Voltage)

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

Cause and when it sets

Cause: An overcurrent condition in the Vehicle AC Bus might have caused an over temperature.

An Over temperature fault has occurred and the source of the fault is the AC module (inverter high voltage bus).

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 16 tells the shop the type of failure to test for: data valid but above normal range (moderately severe).
• Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.

Related fault codes

• International SA 33 SPN 168 FMI 16 — DC module over temperature condition.
• International SA 33 SPN 168 FMI 2 — Comm. fault from ESC/BC to PP3.
• International SA 33 SPN 168 FMI 3 — DC Module Overvoltage condition on Vehicle DC Bus.
• International SA 33 SPN 168 FMI 3 — AC Module Overvoltage condition on High Voltage DC Bus.
• International SA 33 SPN 168 FMI 4 — DC Module Undervoltage condition on Vehicle DC Bus.
• International SA 33 SPN 168 FMI 4 — AC Module Undervoltage condition on High Voltage DC Bus.
• International SA 33 SPN 168 FMI 6 — AC Module has shutdown due to overload condition.
• International SA 33 SPN 168 FMI 8 — Phase missing fault/alternator fault.