AUT 845 - Electrical Systems Diagnosis

1. Perform proper shop safety procedures.
   1. Apply work area safety skills.
   2. Demonstrate safe personal working habits.
   3. Practice safe tool and equipment usage.
   4. Follow manufacturer’s repair procedures.
   5. Follow manufacturer and government warnings and regulations.
2. Examine data communication systems.
   1. Identify communication protocols used.
   2. Examine module to module communication.
   3. Check for and diagnose module communication errors (including CAN/BUS systems) using a scan tool.
   4. Identify electronic modules, security systems, radios, and other accessories that require re-initialization or code entry after reconnecting vehicle battery.
   5. Describe the process for software transfers, software updates, or flash reprogramming on electronic modules.
   6. Repair CAN/BUS wiring harness.
3. Service restraint systems.
   1. Locate system operational theory in a service manual.
   2. Identify inflatable restraint system components.
   3. Locate inflatable restrain system components on a vehicle.
   4. Examine inflatable restraint operational theory.
   5. Identify inflatable restraint trouble codes.
   6. Diagnose failures using trouble code information.
   7. Interpret information and data as it relates to diagnosis.
   8. Perform clearing of trouble codes.
   9. Disable inflator modules by zone location.
   10. Examine seatbelt pretensioner operation.
4. Analyze body control systems.
   1. Discuss controlled systems.
   2. Identify component location and functions.
   3. Use diagnostic tools and procedures to diagnose (troubleshoot) body electronic system circuits; determine necessary action.
   4. Interpret information and data as it relates to diagnosis.
   5. Diagnose body control system and sub-system failures.
5. Examine entertainment systems.
   1. Discuss fundamental radio principles.
   2. Identify audio system components.
   3. Examine operation of various audio systems.
   4. Diagnose (troubleshoot) radio static and weak, intermittent, or no radio reception; determine necessary action.
   5. Examine video system operation.
6. Analyze security systems.
   1. Examine engine related anti-theft systems.
   2. Perform security system-related no-start diagnosis.
   3. Discuss content theft security systems.
   4. Diagnose content theft security system concerns.
7. Explore emerging technology.
   1. Discuss hybrid vehicle technology.
   2. Identify high-voltage circuits of electric or hybrid electric vehicle and related safety precautions.
   3. Analyze high voltage systems.
   4. Examine fuel cell technology.