There's no single right answer, but here's the simple rule: start with the test that matches the work you already do every day. Your first pass builds confidence, and you're studying stuff you already half know.
Here's a quick look at the tests and how to pick.
The tests
- G1: Auto Maintenance and Light Repair
- A1: Engine Repair
- A2: Automatic Transmission/Transaxle
- A3: Manual Drive Train and Axles
- A4: Suspension and Steering
- A5: Brakes
- A6: Electrical/Electronic Systems
- A7: Heating and Air Conditioning
- A8: Engine Performance
- A9: Light Vehicle Diesel Engines
If you're newer
The G1 covers a little bit of everything you do in a shop: brakes, batteries, fluids, tires, A/C, suspension, and basic electrical. It's a good starting point if you do a lot of maintenance and light repair work.
A5 Brakes and A4 Suspension and Steering are also popular early tests, since most techs do a lot of that work.
Don't put off electrical forever
A6 Electrical is the one a lot of techs dread, but electrical shows up everywhere, including A8 Engine Performance and A7 A/C controls. Getting solid on electrical makes the other tests easier, so don't leave it for last.
Use a practice test to decide
Not sure? Take a mixed practice test and see which systems you're strongest in. The test you're closest to passing is a great place to start.
Check the details on ASE's site
Test lengths, fees, and work experience requirements can change, so check with ASE directly before you register.
Cheat sheet
- Start with the test that matches the work you do most
- G1 is a broad, practical starting point
- Don't leave A6 Electrical for last, it helps everywhere
- Take a mixed practice test to see where you're strongest
- Check ASE's site for current requirements before you register
Common questions
What's the easiest ASE test?
It depends on your experience. Most people find the test that matches the work they do every day the easiest.
Should I take the G1 first?
It's a good first test if you do a lot of maintenance and light repair, since it covers a little of everything.
What's the hardest ASE test?
A lot of techs say A6 Electrical, with A2 Automatic Transmission and A8 Engine Performance close behind.
Getting ready for your ASE tests?
ASE Pro has 2,100+ practice questions with clear explanations, so you know why every answer is right.