ADT Cheat Sheet 2026

The 30 highest-yield ADT facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is peer review in ADT Advanced Diagnostics & Troubleshooting? → Quality evaluation by qualified colleagues for improvement
2. What is the purpose of the lambda (oxygen) sensor? → Monitors air-fuel ratio in exhaust
3. How does Audi's keyless entry system enhance comfort? → Allows entry without key use
4. What are consequences of non-compliance in ADT practice? → Fines, license revocation, legal liability, and reputation damage
5. What is evidence-based practice in ADT Engine Performance & Tuning? → Integrating research evidence with expertise and client needs
6. What special tool is required to correctly time the high-pressure fuel pump camshaft lobe on an Audi 2.0 TFSI engine during installation? → Camshaft locking/alignment tool set specific to the EA888 engine
7. What is the typical high-pressure fuel rail operating pressure range for Audi TFSI direct injection engines? → 50–200 bar
8. Why is documentation important in ADT technology? → It ensures knowledge transfer, troubleshooting, and operational continuity
9. How does CAN FD (CAN with Flexible Data Rate) improve upon classical CAN in Audi's newer vehicle architectures? → It supports data rates up to 8 Mbps in the data phase and data frames up to 64 bytes
10. Why is it important to check refrigerant pressure in A/C diagnostics? → To confirm efficient A/C operation
11. Why is regular review important in ADT risk management? → Conditions change and new risks emerge requiring updates
12. A customer's Audi A4 2.0 TFSI exhibits rough idle and misfires at cold start. A known common cause on this engine is: → Carbon buildup on intake valves due to direct injection without port wash
13. When diagnosing an Audi MMI system that is stuck in a reboot loop, which action should a technician attempt FIRST? → Perform a soft reset using the MMI button combination
14. Which Audi/Volkswagen Group factory diagnostic software is the current standard for CAN network diagnosis, guided fault finding, and ECU flash programming? → ODIS (Offboard Diagnostic Information System)
15. Which Audi feature uses an interior camera and steering input to detect driver fatigue and recommend a break? → Driver Attention System (Attention Assist)
16. Why is a parasitic draw test performed on Audi vehicles? → To detect current leakage when vehicle is off
17. Which Audi system is responsible for coordinating the operation of exterior lighting, central locking, and window regulators? → Body Control Module (BCM)
18. What is the purpose of the cabin air filter in HVAC systems? → Filters incoming air for the cabin
19. Which component in Audi's power window system acts as a safety device to prevent injury by detecting increased resistance? → Anti-pinch sensor within the window regulator motor
20. What is the primary purpose of the LIN (Local Interconnect Network) bus in Audi vehicles? → Low-cost communication for simple slave devices such as switches and sensors
21. How does professional liability insurance protect ADT practitioners? → Covering financial losses from claims of negligence or errors
22. What is an SLA in ADT technology? → A formal agreement defining expected service performance standards
23. What is the standard termination resistance value placed at each physical end of a CAN bus network? → 120 ohms
24. Why is documentation important in ADT technology? → It ensures knowledge transfer, troubleshooting, and operational continuity
25. How does professional liability insurance protect ADT practitioners? → Covering financial losses from claims of negligence or errors
26. What is the importance of continuing education for ADT professionals in Engine Performance & Tuning? → Maintaining current knowledge and adapting to industry changes
27. What role do standard operating procedures play in ADT Engine Performance & Tuning? → Ensuring consistency and quality through documented instructions
28. What does the ABS system prevent during braking? → Wheel lock-up
29. A complaint about condensation inside Audi headlight assemblies is BEST addressed by: → Inspecting and replacing the headlight vent membrane or sealing any cracks in the housing
30. Why is documentation critical in ADT compliance? → It provides evidence of compliance and defensible records