This Allison electronic controls troubleshooting manual (publication TS3192EN, April 2003) provides 444 pages of diagnostic trouble code procedures, wiring harness inspection, connector repair, and fluid check guidance for the 1000 Series, 2000 Series, 2000MH Series, and 2400 Series transmissions. It is an essential reference for technicians servicing Allison automatic transmissions equipped with TCM-based electronic controls.
Official Allison electronic controls troubleshooting document details
| Brand | Allison Transmission (General Motors Corporation) |
| Model coverage | 1000 Series, 2000 Series, 2000MH Series, 2400 Series |
| System / Group | Electronic Controls — Troubleshooting |
| Publication no. | TS3192EN |
| Year / Revision | April 2003 |
| Pages | 444 |
| File size | 11.2 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
- Wire Check Procedures (Section 4)
- Beginning the Troubleshooting Process (Paragraph 5–4A)
- Diagnostic Trouble Codes (DTC) — including P0708 Transmission Range Sensor Circuit High Input, P0872 Trans Pressure Switch Solenoid E Circuit Stuck Closed, P0873 Transmission Pressure Switch Solenoid E Circuit High, and many more
- Appendix E — Connector Repair Information (Delphi-Packard Metri-Pack 150 Series Connectors, Pull-to-Seat speed sensor connectors, terminal insertion and removal)
- Appendix P — Fluid Check Procedure
Applicable truck models
This manual applies to all vehicles equipped with Allison 1000 Series, 2000 Series, 2000MH Series, and 2400 Series automatic transmissions using TCM electronic controls. These transmissions are commonly found in medium-duty trucks, motorhomes, and commercial chassis from various OEMs. External harness repair parts and warranty are the responsibility of the vehicle OEM, while internal harness parts are available through the Allison Transmission Parts Distribution Center. The companion Service Manual SM3191EN, Mechanics Tips MT3190EN, and Parts Catalog PC3062EN are referenced for use alongside this publication. For current product information, visit Allison Transmission’s official website.
Who needs this Allison electronic controls troubleshooting manual
Fleet mechanics, independent workshop technicians, and transmission rebuilders who diagnose DTCs, test the NSBU switch, inspect the Pressure Switch Manifold, or perform wiring harness repairs on Allison 1000/2000/2400 transmissions will rely on this manual daily. It is also valuable for workshop owners building a complete Allison service library.
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