This Allison 1000 2000 troubleshooting manual (publication TS3977EN, February 2005) provides complete diagnostic trouble code procedures, electronic control system descriptions, and performance complaint resolution for Allison 4th Generation Controls transmissions in the 1000 and 2000 Product Families. The 603-page PDF is an essential workshop reference for technicians diagnosing transmission faults using Allison DOC™ software and related service tools.
Official Allison 1000 2000 troubleshooting document details
| Brand | Allison Transmission (General Motors Corporation) |
| Model coverage | 1000 and 2000 Product Families |
| System / Group | 4th Generation Electronic Controls — Diagnostic Trouble Codes |
| Publication no. | TS3977EN |
| Year / Revision | February 2005 |
| Pages | 603 |
| File size | 16.6 MB |
| Format | |
| Language | English |
Document table of contents
- Preface and Foreword — How to Use This Manual
- Important Safety Notice — Warnings, Cautions, and Notes
- Description of the Electronic Control System
- Description of Electronic Control System Components
- Range Inhibit Information (Sections 2–2 and 2–4)
- TCM Diagnostic Procedure (Section 3–6)
- Beginning the Troubleshooting Process (Section 5–4)
- Diagnostic Trouble Codes (DTC) — including P0218, P0713, P0842 and others
- General Troubleshooting of Performance Complaints (Section 7)
- Wire, Terminal, and Connector Repair Information
- J1939 CAN Bus Wiring and TCM Internal Termination Resistor Configuration
- Appendix E — Wiring Harness Part Numbers and Diagrams
- Appendix R — Allison Transmission Fluid Checking Procedure
Applicable truck models
This manual applies to all vehicles equipped with Allison 1000 and 2000 Product Family automatic transmissions running 4th Generation electronic controls. These transmissions are widely installed in medium-duty trucks, shuttle buses, and utility vehicles from OEMs such as Chevrolet/GMC, Freightliner, International, and others. External wiring harness repair parts and vehicle-specific wiring information must be obtained from the respective vehicle OEM. The manual references companion publications Service Manual SM4006EN, Mechanics Tips MT4007EN, and Parts Catalog PC3062EN. For official product support, visit Allison Transmission’s official website.
Who needs this Allison 1000 2000 troubleshooting manual
Fleet maintenance technicians, independent transmission shops, and workshop owners servicing medium-duty vehicles with Allison 4th Generation transmissions need this manual. It delivers step-by-step DTC diagnostic tables, sensor circuit testing values, pressure switch procedures, CHECK TRANS light diagnosis, and J1939 backbone harness wiring details required to isolate and repair faults efficiently.
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