International SA 33 SPN 84 FMI 9: Missing Wheel Based Vehicle Speed Message

Code details

Manufacturer

International (Navistar)

Applies to

International / Navistar body controller (ESC) and multiplexed modules

Fault code

SA 33 SPN 84 FMI 9

J1939 SPN

84

FMI

9 — Abnormal update rate

Reporting module

Body Controller (source address 33)

Component / signal

Wheel-Based Vehicle Speed

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

Vehicle_Speed

Cause and when it sets

Cause: J1939 Drivetrain Data Link Lost

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 9 tells the shop the type of failure to test for: abnormal update rate.
• Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.

Related fault codes

• International Fault Code SPN 84 FMI 0 — Wheel-Based Vehicle Speed: Data Valid But Above Normal Operational Range – Most Severe Level
• International Fault Code SPN 84 FMI 1 — Wheel-Based Vehicle Speed: Data Valid But Below Normal Operational Range – Most Severe Level
• International Fault Code SPN 84 FMI 15 — Wheel-Based Vehicle Speed: Data Valid But Above Normal Operating Range – Least Severe Level
• International Fault Code SPN 84 FMI 3 — Wheel-Based Vehicle Speed: Voltage Above Normal, Or Shorted To High Source
• International Fault Code SPN 84 FMI 4 — Wheel-Based Vehicle Speed: Voltage Below Normal, Or Shorted To Low Source
• PACCAR Fault Code P0502 — Vehicle Speed Sensor – Voltage Too Low or Short Circuit to Ground on ECU (D420) Pin (B40)
• PACCAR Fault Code P0503 — Vehicle Speed Sensor – Out of Range
• PACCAR Fault Code P1501 — Vehicle Speed Sensor – Current Too Low or Open Circuit on ECU (D420) Pin (B40)