This is the LoneStar Auto Start Stop troubleshooting manual, publication S08358, for International ProStar and LoneStar trucks. It explains the electrical circuit diagram book, general troubleshooting workflow and the test equipment used to diagnose the feature.
Official document details
| Brand | International Trucks (Navistar) |
| Model coverage | ProStar and LoneStar |
| System / Group | LoneStar / Auto Start Stop |
| Publication no. | S08358 |
| Year / Revision | July 2011 |
| Pages | 56 |
| File size | 0.6 MB |
| Format | |
| Language | English |
Inside the LoneStar Auto Start Stop
- Manual introduction and overview
- Safety information and notation types
- Electrical circuit diagram book and connectors
- General troubleshooting: verify, test, repair, verify
- Electrical test equipment (EZ-Tech EST, breakout box, DMM)
- Ohm’s law review, voltmeter, ammeter and ohmmeter
Copyrighted by Navistar in July 2011, this guide is written around a structured electrical method rather than parts replacement. After an overview and safety notation section, it explains how to read the electrical circuit diagram book, follow circuit-diagram instructions and interpret the connector body composite. The general troubleshooting flow is deliberate: verify the problem, complete important steps before testing, review feature operation, check the circuit diagram, perform circuit and system tests, make the repair and then verify it. A large equipment section describes the EZ-Tech electronic service tool, the body controller breakout box ZTSE4477, a Fluke 88 digital multimeter and the correct use of jumper wires, test leads and test lights. A refresher on Ohm’s law, the voltmeter, ammeter and ohmmeter shows how to measure voltage, amperage and resistance and how to check for open and short circuits.
Applicable truck models
The manual applies to ProStar and LoneStar and relies on the EZ-Tech electronic service tool, the body controller breakout box ZTSE4477 and a Fluke 88 digital multimeter, with circuit-diagram-driven checks for open and short circuits. Verify coverage against your VIN and build sheet on the International Trucks website.
Who needs the LoneStar Auto Start Stop
Electrical technicians use this manual to verify the complaint, read the circuit diagrams and run system tests on the auto start/stop feature before performing and verifying the repair on ProStar and LoneStar trucks.
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