This Fault Code 58 explained reference, drawn from Eaton Fault Isolation Procedure TRTS0980, sets out how the Output Shaft Speed Sensor confirms transmission gear ratios. It is logged under J1587 MID 130 PID 191 and J1939 SA 3 SPN 191 with FMI 2, 5, 6, 8 or 10. The section pairs the SAE J1587 and J1939 identifiers with plain-language detection logic, so a technician can confirm exactly what the transmission is reporting before any part is removed.
Official document details
| Field | Detail |
|---|---|
| Brand | Eaton |
| Model coverage | Fuller Advantage Heavy Duty automated transmissions |
| System / Group | DTCs / Fault Isolation Procedures |
| Publication no. | TRTS0980 |
| Year / Revision | 2016 / Rev. 2016.06.20 |
| Pages | 4 |
| File size | 0.6 MB |
| Format | |
| Language | English |
Document table of contents
- Overview of the Input, Main and Output shaft speed sensors
- J1587 and J1939 identifiers (SPN 191, FMI 2, 5, 6, 8, 10)
- Detection criteria
- Conditions to set the code Active and Inactive
- Fallback behaviour by range
- Possible causes
- Component identification (2-Way sensor, Tone Wheel, 38-Way connector)
Applicable trucks for Fault Code 58 explained
This reference covers the Fuller Advantage Heavy Duty transmission, whose TECU compares Input, Main and Output shaft speeds to calculate main-case, auxiliary-case and overall gear ratios. The Output Shaft signal is taken from the Tone Wheel. Causes include a loose or broken Tone Wheel, harness wiring shorted or open and auxiliary-case internal failure. For manufacturer specifications and OEM cross-references, visit the Eaton Roadranger website.
Who needs this Fault Code 58 explained manual
Technicians and service advisors use this overview to understand how the control unit validates the signal and how the transmission falls back within a range before running the isolation chart. Because the PDF preserves the original component names, connector callouts and measurement ranges, it also helps parts specialists confirm the correct sensor, harness or actuator before a repair order is raised.
The complete PDF is available in the DiagTechPro manuals library; a free account is required to download it, along with the related Fuller Advantage fault-code manuals listed below.
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