ASE Certification Guide

Directory · grows as tests are added

ASE tests on this site, by series

Four automobile tests, the G1 maintenance test and all eight truck tests have practice sets today. Seven more already have checked fact cards and get practice pages in later waves. Every row names its source and the date we last checked it.

Automobile and light truck: A-series

Checked Oct 23, 2026 against each source linked in the table. All four count toward Master Automobile Technician; so do A2, A3, A4 and A7 below.
TestScored questionsQuestions on the testTesting timeMaster statusPracticeSourceChecked
ASE A5Brakes455575 minRequired for MasterPractice test
Facts 		ASE Automobile Study Guide 2026 (A1–A9) · ASE: A1–A9 tests page
ASE A6Electrical/Electronic Systems506090 minRequired for MasterPractice test
Facts 		ASE Automobile Study Guide 2026 (A1–A9) · ASE: A1–A9 tests page
ASE A1Engine Repair455575 minRequired for MasterPractice test
Facts 		ASE Automobile Study Guide 2026 (A1–A9) · ASE: A1–A9 tests page
ASE A8Engine Performance506075 minRequired for MasterPractice test
Facts 		ASE Automobile Study Guide 2026 (A1–A9) · ASE: A1–A9 tests page

Maintenance and light repair: G1

Checked Oct 23, 2026 against each source linked in the table.
TestScored questionsQuestions on the testTesting timeWork experience requiredWhere you take itPracticeSourceChecked
ASE G1Auto Maintenance and Light Repair556590 min1 yearCenter or remotePractice test
Facts 		ASE: G1 test page · ASE G1 Study Guide 2026

Medium and heavy truck: T1–T8

Checked Oct 23, 2026 against each source linked in the table. Ranges cover all eight truck tests; each test's own count is on its page.
TestTests in the seriesScored questionsTesting timeMaster statusPracticeSourceChecked
ASE T-SeriesMedium/Heavy Truck Tests T1–T88 tests40–5560–90 minT2–T8 for MasterPractice test
Facts 		ASE: T1–T8 tests page · ASE Certification: Need to Know (Jan 2026)

Each truck test has its own page with questions:

  1. T1
  2. T2
  3. T3
  4. T4
  5. T5
  6. T6
  7. T7
  8. T8

Coming next: facts checked, practice pending

Checked Oct 23, 2026 against each source linked in the table. These rows link to no practice yet. A test moves up once its question set has passed review.
TestScored questionsQuestions on the testTesting timeWork experience requiredMaster statusSourceChecked
ASE A2Automatic Transmission/Transaxle455575 min2 yearsRequired for MasterASE Automobile Study Guide 2026 (A1–A9) · ASE: A1–A9 tests page
ASE A3Manual Drive Train and Axles405060 min2 yearsRequired for MasterASE Automobile Study Guide 2026 (A1–A9) · ASE: A1–A9 tests page
ASE A4Suspension and Steering405060 min2 yearsRequired for MasterASE Automobile Study Guide 2026 (A1–A9) · ASE: A1–A9 tests page
ASE A7Heating and Air Conditioning506075 min2 yearsRequired for MasterASE Automobile Study Guide 2026 (A1–A9) · ASE: A1–A9 tests page
ASE A9Light Vehicle Diesel Engines506075 min2 yearsNot required for MasterASE Automobile Study Guide 2026 (A1–A9) · ASE: A1–A9 tests page
ASE L1Advanced Engine Performance Specialist50602½ hours3 yearsNo Master statusASE: L1 test page
ASE L2Electronic Diesel Engine Diagnosis Specialist45552 hours3 yearsNo Master statusASE: L2 test page

A2, A3, A4 and A7 complete the Master Automobile Technician set. A9 and L2 are diesel tests, covered for now on the diesel certification page. L1 has a prerequisite: you must have passed A8 Engine Performance first, so the A8 practice test comes first.

ASE runs other series this site doesn't cover yet, among them B collision repair, C1 service consultant and H transit bus tests. The full list is on ASE's test series page.

Test guides

  • ASE T-Series The eight medium/heavy truck tests: format, content, the T2–T8 Master path
  • ASE G1 What the maintenance and light repair test covers, its format and who it suits
  • ASE A5 Four content areas with question counts, test rules and fees, sample questions
  • ASE A6 Format, the five content areas and what makes the electrical test different
  • ASE A1 The 2026 Engine Repair test: format, the five areas, fees and the path to certification
  • ASE A8 Format, the five content areas, fees and every A8 page on this site

Guides