Description
Eaton Fuller AutoShift AutoSelect Troubleshooting Guide TRTS-0050
The Eaton Fuller Automated Transmissions Troubleshooting Guide TRTS-0050 is a comprehensive diagnostic reference designed to help technicians identify and troubleshoot electrical, electronic, pneumatic, and transmission control problems in Eaton Fuller automated transmission systems.
The manual covers the RTAO-1X710-AS, RTAO-1X710-AC, and RTLO-1X918-AS transmission models and provides structured troubleshooting procedures for both 18-speed and 10-speed automated transmissions. The guide is organized so technicians can move from initial system checks to specific fault-code or symptom isolation procedures.
Manual Specifications
| Manual Type | Troubleshooting / Diagnostic Guide |
|---|---|
| Manufacturer | Eaton Fuller / Roadranger |
| Manual Number | TRTS-0050 |
| Publication Date | January 2006 |
| Transmission Models | RTAO-1X710-AS, RTAO-1X710-AC, RTLO-1X918-AS |
| Transmission Coverage | 10-Speed and 18-Speed Automated Transmissions |
| Format | Digital PDF |
| Total Pages | 276 Pages |
| Download Size | 24 MB |
| Main Sections | General Information, Fault Isolation Procedures, Symptom Isolation Procedures, Appendix |
Detailed Fault Code Diagnostics
A major section of the manual is dedicated to fault isolation procedures. The troubleshooting guide provides diagnostic information for numerous fault codes and identifies the associated PID, SID, FMI, component or system description, and recommended diagnostic approach.
Covered diagnostic areas include the System Controller, Transmission Controller, Shift Lever, Shift Lever Data Link, Eaton Proprietary Link (EPL), Start Enable Relay Coil, Engine Brake Relay Coil, Battery Voltage Supply, Engine Control Failure, Range and Splitter systems, solenoid valves, rail and gear select sensors, speed sensors, select motors, and shift-control components.
Electrical and Power-Up Testing
The manual begins troubleshooting with important electrical system checks. The Electrical System Pretest verifies battery condition and electrical supply before technicians proceed with fault-code isolation procedures. The guide also includes a Power-Up Sequence Pretest for diagnosing failures during the transmission control self-check.
Recommended diagnostic equipment includes basic hand tools, air gauges, a digital volt/ohm meter, Eaton test adapter equipment, a battery load tester, data-link testing equipment, and the PC-based ServiceRanger service tool.
Fault Code Retrieval and Clearing
The TRTS-0050 guide explains procedures for retrieving both active and inactive fault codes through the system’s self-diagnostic mode. It also provides a procedure for clearing inactive fault codes from the ECU memory after corrective repairs have been completed.
Symptom-Based Troubleshooting
In addition to fault-code diagnostics, the manual contains a dedicated Symptom Isolation Procedures section. This allows technicians to troubleshoot problems even when active or inactive fault codes are not available.
Symptoms covered include gear-display problems, engine starting issues, failure to engage a gear, range-shift problems, splitter-shift problems, Up/Down button operation, shift complaints, transmission air leaks, J-1587 data-link problems, and Neutral Lock input operation.
Wiring and Clutch Information
The appendix provides wiring harness references for current-style and old-style AutoSelect and AutoShift systems. It also includes procedures for checking proper clutch operation and confirming proper clutch adjustment.
What You Can Find in This Manual
- General transmission troubleshooting information
- Diagnostic procedures and troubleshooting flowcharts
- Active and inactive fault-code retrieval procedures
- Fault-code clearing procedures
- Fault Code Isolation Procedure Index
- Symptom Driven Diagnostics Index
- Electrical System Pretest
- Power-Up Sequence Pretest
- Air system testing
- System Controller diagnostics
- Transmission ECU diagnostics
- Shift Lever and data-link diagnostics
- Eaton Proprietary Link (EPL) testing
- Range and splitter system diagnostics
- Solenoid valve testing
- Rail and gear select sensor testing
- Input, main, and output shaft speed sensor testing
- Rail Select and Gear Select motor testing
- Low motor voltage diagnostics
- Stuck engaged and failed gear-selection diagnostics
- AutoShift/AutoSelect symptom isolation procedures
- Transmission air leak testing
- J-1587 data-link testing
- AutoShift and AutoSelect wiring harness information
- Clutch operation and adjustment checks
The sample’s table of contents shows a structured diagnostic workflow, while the troubleshooting pages demonstrate step-by-step procedures using Procedure, Condition, and Action formats. The diagnostic flowchart also guides technicians through fault-code retrieval, gear-display checks, electrical and air pretests, and symptom-driven diagnostics.
Important: This is a technical troubleshooting reference intended for qualified technicians and repair professionals working with Eaton Fuller automated transmission systems.
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