ASE A6 · Electrical/Electronic Systems
Lighting
Lighting system diagnosis and repair: exterior and interior lamps, headlamp aiming and leveling (including HID, LED and adaptive lights), turn signals and hazards, and trailer wiring.
- Questions on the A6 test
- 6
- Share of the test
- 12%
- GearheadPass questions
- 25
- With exhibits
- 5
What this area covers
ASE's task list for Lighting on the A6 Electrical/Electronic Systems test groups into these tasks. Expect diagnosis-first questions: what's the most likely cause, what should be checked next, and which technician is right.
- Exterior lighting faults
- Headlamp aiming, HID, LED and adaptive
- Turn signal and hazard circuits
- Interior and instrument lighting
- Switches, relays and lighting modules
- Trailer wiring and brake control
How to study it
- This area carries 6 of the A6 test's questions (12%). Give it study time in proportion.
- Work the free questions first, then read every explanation, including the ones you got right; the reasoning is what transfers to new questions.
- 2 of the 5 free questions here are Technician A/B items. Judge each statement on its own before you pick A only, B only, Both or Neither.
- 2 free questions use an exhibit. Read the exhibit's numbers before the answer options.
- Always confirm specifications in the vehicle manufacturer's service information. Test questions assume you would.
Free practice quiz
5 Lighting questions with explanations
All 25 Lighting questions are in the app
Plus a full-length A6 mock, flash cards, and English or Spanish on every question.
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