Vehicle Safety Systems and Advanced Driver Assistance Systems (ADAS) Awareness
What this domain tests
This domain tests awareness of safety systems and ADAS during non-structural repair. The exam checks pre- and post-scan, disabling systems, sensor locations, calibration triggers, and documentation.
Core rules
- Pre-scan before repair and post-scan after; save reports. A no-code vehicle can still need calibration.
- Disable airbags and pretensioners per OEM; observe wait times and disconnect batteries as specified.
- Camera, radar, ultrasonic, and lidar sensors are affected by bumper covers, windshields, ride height, tire size, wheel alignment, and steering angle.
- Calibration may be static, dynamic, or both; perform required alignment and tire checks first.
- Do not assume a sensor is undamaged because the cover looks fine; inspect mounts and connectors.
Worked example
A front bumper cover is replaced and the vehicle has radar. The technician pre-scans, disconnects the battery, replaces the cover, post-scans, and performs radar calibration after checking ride height and tire size. Reasoning: the radar aims through the cover; a disturbed mount or incorrect ride height can misaim it, so calibration is part of the repair.
Traps
Skipping pre-scan; calibrating without checking alignment or tire size; ignoring rear sensors; assuming no DTC means no calibration; not documenting the scan; leaving sensors loose.