What This System Does
The Wheel Speed Sensors system provide wheel speed data used by ABS, stability, and traction systems. Its modules or related sensors may report diagnostic codes when measured data does not match expected behavior.
Why Fault Codes Appear
Codes can be related to sensor values, wiring, module communication, calibration, environmental conditions, or component performance. A code is a diagnostic clue, not a parts verdict.
Common SPN/FMI Patterns
Common patterns include voltage high or low, data erratic, abnormal update rate, condition above or below threshold, and manufacturer-specific events.
Symptoms Drivers May Notice
Drivers may notice warning lamps, derate, unusual messages, performance changes, or no obvious symptom at all. Record symptoms without assuming the root cause.
Safety Note
Brake, oil pressure, coolant temperature, red stop lamp, and severe derate concerns should be handled conservatively. Stop safely and follow OEM or fleet guidance.
Related Pages
Related Fault Code Pages
- Bendix EC-60 UDS 1 / SPN 793 FMI 2
- Bendix EC-60 UDS 3 / SPN 793 FMI 13
- Bendix EC-60 UDS 5 / SPN 793 FMI 7
- Bendix EC-60 UDS 7 / SPN 793 FMI 1
- Bendix EC-60 UDS 8 / SPN 793 FMI 14
- Bendix EC-60 UDS 9 / SPN 793 FMI 8
- Bendix EC-60 UDS 10 / SPN 793 FMI 10
- Bendix EC-60 UDS 65 / SPN 789 FMI 2
- Bendix EC-60 UDS 69 / SPN 789 FMI 7
- Bendix EC-60 UDS 71 / SPN 789 FMI 1
- Bendix EC-60 UDS 72 / SPN 789 FMI 14
- Bendix EC-60 UDS 73 / SPN 789 FMI 8
- Bendix EC-60 UDS 74 / SPN 789 FMI 10
- Bendix EC-60 UDS 97 / SPN 792 FMI 2
- Bendix EC-60 UDS 101 / SPN 792 FMI 7
- Bendix EC-60 UDS 103 / SPN 792 FMI 1
- Bendix EC-60 UDS 104 / SPN 792 FMI 14
- Bendix EC-60 UDS 105 / SPN 792 FMI 8
- Bendix EC-60 UDS 106 / SPN 792 FMI 10
- Bendix EC-60 UDS 129 / SPN 790 FMI 2
Sources
- SAE J1939 Standards Collection SAE International · official · accessed 2026-05-05 · confidence medium
Source: SAE International, SAE J1939 Standards Collection. This page paraphrases factual fields only and is not a substitute for the original document.
Open source
FAQ
Can a Wheel Speed Sensors code identify one failed part?
Usually no. The code points to a monitored condition and should be verified with OEM diagnostic software and service information.
What should I record for a Wheel Speed Sensors fault?
Record the full code, active status, warning lamps, derate state, related codes, and operating conditions.
Can I keep driving with a Wheel Speed Sensors warning?
Severity depends on the system and warning lamps. Stop safely for red stop lamps, brake warnings, oil pressure warnings, coolant temperature warnings, or severe derate.