Study each topic below — these are the core knowledge areas tested in Year 1. Build a solid foundation here before advancing to Year 2 material.
🔍Advanced Air Brake Diagnostics
- Pressure gauge and transducer testing
- Air leak detection and location
- Spring brake application force measurement
- Electrical ABS system troubleshooting
🚗Electronic Engine Management
- Heavy-duty engine electronic control modules
- Fault code diagnosis and remedy procedures
- Sensor validation and ECM programming
- DPF (diesel particulate filter) regeneration
📖Trailer Brake Systems
- Pneumatic and hydraulic trailer brake operation
- ABS modulation on multi-axle trailers
- Load sensing and proportioning valve function
- Emergency backup systems and redundancy
📖Drive Train & Transmission
- Manual and automated transmission operation
- Retarder systems for brake supplementation
- Engine brake (Jake brake) operation
- Driveline component wear analysis
🔍Advanced Suspension Diagnostics
- Air suspension pressure measurement
- Height sensor calibration and replacement
- Leveling valve adjustment procedures
- Ride quality and compliance optimization
📖Coupling & Hitching Systems
- Fifth wheel force measurement and limits
- Landing gear function and load rating
- Kingpin pull-off force verification
- Safety device inspection and certification
📋Environmental Compliance
- Emission standards and SCR systems
- Diesel fuel quality and contamination testing
- Coolant disposal and recycling procedures
- DEF (diesel exhaust fluid) handling and storage
📋Federal Safety Standards
- Commercial Vehicle Safety Alliance (CVSA) inspection
- Record-keeping and maintenance documentation
- Dangerous goods transport vehicle requirements
- Defect reporting and recall procedures