ASE G1
Maintenance & Light Repair (G1)
The ASE G1 Auto Maintenance and Light Repair test covers routine service and inspection across the whole vehicle: engine systems, transmissions and drivelines, suspension and steering, brakes, electrical and HVAC. It is taken by technicians who handle maintenance and light repair work, such as fluid, brake, tire and battery service.
- Questions you sit
- 55
- Scored
- 45
- Time allowed
- 90 min
- GearheadPass questions
- 527
From ASE's 2026 study guide. The test includes 10 unscored research questions you can't tell apart from the scored ones. ASE's G1 guide gives 45 scored in its timing table while its content-area table adds up to 55; check ase.com for the current figure.
Content areas and weights
| Content area | Questions on the test | Share | Free practice |
|---|---|---|---|
| Engine Systems | 9 | 16% | 5 questions → |
| Automatic Transmission | 4 | 7% | 5 questions → |
| Manual Drive Train & Axles | 6 | 11% | 5 questions → |
| Suspension & Steering | 13 | 24% | 5 questions → |
| Brakes | 11 | 20% | 5 questions → |
| Electrical | 8 | 15% | 5 questions → |
| Heating & A/C | 4 | 7% | 5 questions → |
Study each area
G1 · 9 questions on the test
Engine Systems
Routine engine service and inspection: leaks and noises, oil changes, cooling system tests and parts, belts, air and throttle body service, exhaust, spark plugs, fuel and EVAP checks, and DEF.
G1 · 4 questions on the test
Automatic Transmission
Basic automatic transmission service: road test and DTC retrieval, fluid type and condition, leaks and seals, CV and drive shaft parts, cooler lines, mounts, and fluid and filter changes.
G1 · 6 questions on the test
Manual Drive Train & Axles
Basic driveline service: hydraulic clutch bleeding, shift linkage, seals and fluid, drive shafts and CV joints, wheel bearings, rear axles, and 4WD/AWD transfer case checks.
G1 · 13 questions on the test
Suspension & Steering
The largest G1 area: power steering service, linkage and suspension inspection, struts and shocks, basic alignment measurements and adjustment, tire service and repair, and TPMS.
G1 · 11 questions on the test
Brakes
Brake inspection and service: fluid and leak checks, warning lights, bleeding, drum and disc brake service, rotor and drum machining, parking brakes, and power assist checks.
G1 · 8 questions on the test
Electrical
Basic electrical service: voltage, current and resistance checks, battery testing and charging, jump-starting, starter and alternator replacement, lighting, gauges, horn and wipers.
G1 · 4 questions on the test
Heating & A/C
Basic HVAC service: verifying system operation, identifying refrigerant and recovering and recharging, checking for leaks, condenser airflow, cabin filters, belts and evaporator drains.
Take a full-length G1 mock in the app
55 questions in 90 minutes, weighted like the real test, scored by content area, with English or Spanish on every question.
