ASE G1 · choosing a first test

Easiest ASE test? G1 as a first test

There is no sourced answer to which ASE test is easiest: ASE publishes no passing scores, and its guides and FAQ give no pass rates (checked October 23, 2026). What can be compared is the entry bar, and there G1 is lower than the A-series: 1 year of work experience instead of 2 years, a first attempt you can take at home, and tasks at service level. The catch: it doesn't count toward Master.

1 yearwork experience
Center or remotefirst attempt
Nocounts toward Master

G1 against an A-series test

Checked Oct 23, 2026 against each source linked in the table. A1 stands in for the A-series: experience, first-attempt delivery, Master role and the Renewal App read the same on every A1–A8 card; question counts differ by test.
Topic	ASE G1	ASE A1	Source
Work experience required	1 year of full-time hands-on work (or the part-time equivalent)you can test first; the certificate waits until the experience is approved	2 years of full-time hands-on work (or the part-time equivalent)you can test first; the certificate waits until the experience is approved	[1] [2]
Where you take it	Test center or remote proctoring at home or work (Prometric ProProctor), first attempt includedG1 is the only ASE test you can take remotely the first time; register at least 4 days ahead	First attempt at a Prometric test center only; remote testing is for recertification	[2] [3]
Scored questions	55 scored questionsthe G1 guide prints "45 scored" on p.3 and a total of 50 on p.4, but its own area counts add up to 55	45 scored questions	[3] [4] [5] [6]
Testing time	90 minutes	75 minutes	[3] [4] [5] [6]
Master status	Not part of Master Automobile Technician (that takes A1–A8)	One of the 8 tests (A1–A8) required for Master Automobile Technicianeach certification must stay current to keep Master status	[5] [6]
ASE Renewal App	Not available: the ASE Renewal App covers A1–A9 only	$52 a year covers all your A1–A9 certifications; 8 correct answers in an area add 1 yearone question per certification every 30 days; an expired credential is reactivated for at least 18 months	[2] [7] [8]

What "easiest" can honestly mean

Lists that rank ASE tests from easiest to hardest are opinion. They can't rest on data that ASE doesn't release. Two things are measurable, though:

Depth. G1 tasks stop at inspect, measure, replace and adjust; its brake tasks are about measuring rotors and bleeding systems. The A5 task list is built on "Diagnose…" tasks, about why the pedal, the brakes or the ABS misbehave.
Breadth. G1's 55 scored questions cover seven areas, from oil service to A/C recharge. An A-test goes deep on one system.

So G1 suits the tech who does a bit of everything at service level, and an A-test suits the one who diagnoses one system all day.

Start with G1 if…

you have less than 2 years in the bay: 1 year is enough for G1, and you can test first; the certificate waits until the experience is approved;
your work is maintenance: oil and cooling service, tires and alignment, brake jobs, batteries;
you'd rather test at home: G1's first attempt can be remote, while a first A-series attempt is test center only;
you're in an ASE-accredited school program: students in ASE-accredited programs who pass a set list of 8 ASE entry-level tests can earn G1 without taking it.

Start with an A-test if…

you're working toward Master Automobile Technician: G1 is not part of Master, so a pass moves you no closer;
you already diagnose in one system: brakes (A5), electrical (A6), engine repair (A1) or drivability (A8);
you'd rather stay current without retesting later: A-series holders can use the Renewal App, which doesn't cover G1 (G1 cost).

Both tests offer the side-by-side Spanish version, so language isn't a reason to pick one.

G1 is not a step toward Master

G1 is easy to mistake for a first step toward Master. It isn't: G1 is not part of Master Automobile Technician, which takes A1–A8. If Master is the goal, G1 is a separate credential to keep alongside, with its own recertification.

Three G1 questions to gauge the level

0 of 3 answered · 0 correct

Question 1 of 3 · Brakes · 20%Not answered

A vehicle's brake pad wear indicator light is illuminated. A visual inspection reveals the outer pads on the front axle have 6 mm of lining remaining. The inner pads are obstructed from view by the caliper body. What is the correct next step?

Explanation

Correct: The light says a pad has reached its wear limit and the inner pads cannot be seen, so removing the caliper to inspect them is the only way to confirm.

Incorrect: Good outer pads say nothing about the hidden inner pads, which is what the warning is reporting on.

Incorrect: Assuming the indicator is faulty skips the inspection the warning calls for.

Incorrect: Replacing the sensor without checking the pad could silence a valid warning.

Incorrect: A fluid flush has nothing to do with a pad wear warning.

Question 2 of 3 · Manual Drive Train and Axles · 11%Not answered

During a road test of a manual transmission vehicle, a technician observes that the engine RPM increases rapidly under steady load without a corresponding increase in vehicle speed. What does this indicate?

Explanation

Correct: When the clutch slips, engine speed rises under load without the vehicle speeding up, because the disc is not locked to the flywheel.

Incorrect: A seized release bearing makes noise or wears the diaphragm fingers; it does not let RPM climb without road speed.

Incorrect: A stuck-open thermostat affects engine temperature, not the link between engine speed and road speed.

Incorrect: Worn differential gears whine or clunk, but they still transmit power.

Incorrect: A broken input shaft would give no drive at all, not slipping drive.

Question 3 of 3 · Suspension and Steering · 24%Not answered

A vehicle equipped with an indirect TPMS system has just had its tires rotated and pressures adjusted to specification. What is the mandatory next step to ensure proper system operation?

Explanation

Incorrect: An indirect system has no valve stem sensors to replace.

Incorrect: Driving 50 miles alone does not reset the baseline; the system is initialized first and then learns while driving.

Incorrect: The wheel speed sensors work; replacing them does nothing for the TPMS baseline.

Correct: An indirect TPMS judges pressure from wheel speeds read by the ABS sensors; after a rotation and pressure set, it must be initialized to learn the new baseline.

Incorrect: A correct rotation sets no diagnostic trouble codes, so a scan does not replace the reset.

Answer every question to see your score

If these felt routine, the G1 practice test will tell you more. Full rules are on G1 exam facts.

First ASE test, quick answers

What is the easiest ASE test to pass?

ASE's guides and FAQ give no pass rates, so no ranking is sourced. G1 has a lower entry bar than the A-series: 1 year of experience and a first attempt you can take at home.

Which ASE test should I take first?

G1 if your work is maintenance and you want a credential soon; an A-test in your strongest system if you're aiming at Master, because G1 doesn't count toward it.

What is the hardest ASE test?

There's no published data to say. Difficulty depends on your work: a test on a system you diagnose daily is easier for you than one on a system you rarely open.

Can I take my first ASE test at home?

Yes, if it's G1: G1 is the only ASE test you can take remotely the first time; register at least 4 days ahead. A first A-series attempt is test center only.