ASE G1 Maintenance & Light Repair practice test
G1 is the entry-level certification and the widest one on the list: it touches every system on the car, but at the depth a maintenance and light-repair technician actually works. Fewer deep diagnostics, far more range.
Automatic transmission fluid on the dipstick is dark brown and smells burnt. This MOST likely indicates:
How the G1 test works
55 scored questions
+ ~10 unscored research questions
90 minutes
computer-based, at a test center
$62 per test
plus one $34 registration fee per order
Valid 5 years
then a shorter recertification test
ASE does not publish a fixed passing percentage — scores are scaled. Around 65–70% correct is the commonly cited range; aim above 80% in practice so you walk in with margin. The certificate is issued once ASE verifies your required work experience.
What the G1 test covers
The official task list for G1 Auto Maintenance and Light Repair breaks down into these content areas — the practice bank above draws from all of them:
- Engine systems — oil and filter service, cooling system, belts, and basic diagnosis
- Automatic transmission and transaxle — fluid level, condition, and service
- Manual drive train and axles — clutch, CV joints, and lubricant service
- Suspension and steering — tires, TPMS, alignment symptoms, and wear checks
- Brakes — pad and rotor measurement, hydraulic service, and common noise diagnosis
- Electrical — battery, charging, circuit protection, and lighting
- Heating and air conditioning — airflow, blower circuits, and refrigerant handling
Frequently asked
- How many questions are on the ASE G1 test?
- The G1 test has 55 scored questions plus about 10 unscored research questions, with a 90-minute time limit.
- Is G1 a good first ASE test?
- For most technicians, yes. G1 is written around maintenance and light-repair work rather than deep diagnostics, so it matches what an entry-level tech does daily — and it touches every system, which makes it useful preparation for the A-series later.
- Does G1 count toward Master Automobile Technician?
- No. Master Automobile Technician status comes from passing A1 through A8. G1 is a standalone certification aimed at the maintenance and light-repair role.
- Is G1 easier than the A-series tests?
- It is broader but shallower. You will see something from nearly every system, but the questions stay at service depth rather than asking you to diagnose an intermittent fault down to a component.