ASE T6 Domain 4: Lighting Systems Diagnosis and Repair Welcome to your ASE T6 Domain 4: Lighting Systems Diagnosis and Repair 1. ASE T6: Lighting Systems Diagnosis and Repair When diagnosing a vehicle with flickering headlights, what is the most likely cause of the issue? A. A faulty headlight switch B. A weak alternator C. A defective headlight bulb D. A damaged wiring harness None 2. ASE T6: Lighting Systems Diagnosis and Repair What should be checked first when troubleshooting a lighting system issue where multiple bulbs are not working? A. The condition of the bulbs B. The fuse for the lighting circuit C. The headlight switch D. The battery voltage None 3. ASE T6: Lighting Systems Diagnosis and Repair Which type of bulb typically has the longest lifespan in a vehicle's lighting system? A. Halogen B. Incandescent C. HID (High-Intensity Discharge) D. LED (Light Emitting Diode) None 4. ASE T6: Lighting Systems Diagnosis and Repair What is the purpose of a lighting system's relay? A. To regulate the brightness of the bulbs B. To convert AC voltage to DC voltage C. To control the timing of the turn signals D. To control the flow of electrical current to the bulbs None 5. ASE T6: Lighting Systems Diagnosis and Repair What is the likely cause when a vehicle's brake lights do not illuminate when the brake pedal is pressed, but the bulbs and brake light switch are in good condition? A. Faulty turn signal switch B. Defective flasher relay C. Wiring harness damage D. Low brake fluid level None 6. ASE T6: Lighting Systems Diagnosis and Repair When performing headlight aiming, what is the purpose of horizontal adjustment? A. To adjust the headlight's up-and-down angle B. To adjust the headlight's left-to-right angle C. To adjust the headlight's brightness D. To adjust the headlight's beam width None 7. ASE T6: Lighting Systems Diagnosis and Repair What is the primary purpose of the lighting system's turn signal flasher relay? A. To control the brightness of the turn signal bulbs B. To regulate the voltage supplied to the turn signal bulbs C. To control the timing and flashing of the turn signals D. To convert AC voltage to DC voltage None 8. ASE T6: Lighting Systems Diagnosis and Repair If a vehicle's headlights are too dim and become brighter when the engine is revved, what is the likely cause? A. A faulty headlight switch B. A weak battery C. A defective alternator D. Corroded battery terminals None 9. ASE T6: Lighting Systems Diagnosis and Repair What is the purpose of a lighting system's ballast in HID (High-Intensity Discharge) bulbs? A. To control the timing of the turn signals B. To regulate the brightness of the bulbs C. To convert AC voltage to DC voltage D. To provide the initial high voltage needed to start the bulb None 10. ASE T6: Lighting Systems Diagnosis and Repair What should a technician check when troubleshooting a lighting system issue where a specific bulb flickers intermittently? A. The fuse for the lighting circuit B. The battery voltage C. The bulb socket and wiring connections D. The headlight switch None 1 out of 10 Time is Up! Time's up
