Description
Allison WTEC II Controls Troubleshooting Manual
This genuine Allison troubleshooting manual is designed for technicians, fleet maintenance departments, transmission specialists, and repair workshops servicing Allison WTEC II electronically controlled transmissions.
The manual explains the complete operation of the WTEC II electronic control system and provides detailed step-by-step diagnostic procedures to quickly locate electrical, hydraulic, sensor, wiring, and transmission control faults.
Coverage includes Electronic Control Unit (ECU) operation, shift selectors, throttle position sensors, speed sensors, control modules, wiring harnesses, diagnostic trouble codes, oil level sensor testing, transmission performance troubleshooting, hydraulic schematics, connector repair procedures, and complete wiring diagrams.
| Manual Type | Troubleshooting Manual |
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| Publication | TS2470EN |
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| Manufacturer | Allison Transmission |
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| Language | English |
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| Format | PDF |
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| Pages | 396 |
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| Download Size | 6 MB |
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| Searchable | Yes |
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| Printable | Yes |
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| Delivery | Instant Download , Life Time Access |
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| Models Covered | MD 3060, MD 3066, MD 3560(P)(R), MD 3070PT, HD 4060, HD 4560(P)(R), B300, B400, B500(P)(R) |
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| Electronic Controls | WTEC II (Pre-TransID & TID 1) |
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Manual Covers
- WTEC II electronic control system overview
- Electronic Control Unit (ECU) operation
- Pushbutton and lever shift selector diagnostics
- Throttle Position Sensor (TPS) testing
- Input and output speed sensor diagnostics
- Vehicle Interface Module (VIM)
- Oil level sensor procedures
- Diagnostic Trouble Code (DTC) identification
- Diagnostic code troubleshooting charts
- Performance complaint diagnostics
- Wire and connector testing
- Internal and external wiring harness repairs
- Hydraulic schematics
- Input/output wiring diagrams
- Solenoid and clutch charts
- Pressure testing procedures
- Connector repair information
- Electronic interference diagnosis
Supported Transmission Families
- MD 3060
- MD 3066
- MD 3560(P)(R)
- MD 3070PT
- HD 4060
- HD 4560(P)(R)
- B300
- B400
- B500(P)(R)
This manual is ideal for diagnosing electronic shifting problems, communication faults, wiring issues, sensor failures, hydraulic control problems, and transmission performance complaints.
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