ASE G1 Test Pass Rate, Format & Study Guide

The G1 certification test has 55 scored questions and 10 unscored research questions that are not identified, so answer every question; you have 90 minutes (ASE G1 test page). ASE's study guide groups the scored questions into seven areas: Engine Systems 9, Automatic Transmission/Transaxle 4, Manual Drive Train and Axles 6, Suspension and Steering 13, Brakes 11, Electrical 8 and Heating, Ventilation and Air Conditioning 4 (ASE G1 Official Study Guide, 2026 edition). You can take the test in person at a Prometric test center or online with remote proctoring where eligible, and the G1 test is also offered in Spanish (ASE G1 test page).

ASE certification is a recognized way for automotive technicians to show that they have passed a test in a specific service area, and G1 covers the maintenance and light repair work of a general service technician.

Automotive students and working technicians who want ASE certification in maintenance and light repair.

The certifying body does not publicly publish an official pass rate for this exam. Be wary of third-party sites citing a specific number here — treat any pass-rate claim you see elsewhere for this exam as unverified.

The ASE G1 page does not state a waiting period for retaking a test. Check ASE's current retest rules before you rebook, and note that a purchased test expires if you do not schedule it within the window ASE sets.

ASE does not publish a passing score for the G1 test, so the portal mock shows 70 percent only as a self-check target. Your official result comes from ASE. Format: 55 scored multiple-choice questions plus 10 unscored research questions in 90 minutes. No official pass rate is available for this exam, so none is quoted here.

The G1 certification test has 55 scored questions and 10 unscored research questions that are not identified, so answer every question; you have 90 minutes (ASE G1 test page). ASE's study guide groups the scored questions into seven areas: Engine Systems 9, Automatic Transmission/Transaxle 4, Manual Drive Train and Axles 6, Suspension and Steering 13, Brakes 11, Electrical 8 and Heating, Ventilation and Air Conditioning 4 (ASE G1 Official Study Guide, 2026 edition). You can take the test in person at a Prometric test center or online with remote proctoring where eligible, and the G1 test is also offered in Spanish (ASE G1 test page). 55 scored multiple-choice questions plus 10 unscored research questions · 90 minutes · Prometric test center or online · also offered in Spanish. ASE does not publish a passing score for the G1 test, so the portal mock shows 70 percent only as a self-check target. Your official result comes from ASE.

• Engine Systems16.4%
• Automatic Transmission/Transaxle7.3%
• Manual Drive Train and Axles10.9%
• Suspension and Steering23.6%
• Brakes20%
• Electrical14.6%
• Heating, Ventilation, and Air Conditioning7.3%

The content outline spreads questions across 7 areas: Engine Systems (16.4%); Automatic Transmission/Transaxle (7.3%); Manual Drive Train and Axles (10.9%); Suspension and Steering (23.6%); Brakes (20.0%); Electrical (14.6%); Heating, Ventilation, and Air Conditioning (7.3%).

To become ASE-certified you must pass the test and have full-time, hands-on work experience, or a combination of formal training and experience. ASE says the amount of experience varies by test; check the work experience page on ase.com for G1.

$34 registration per order plus $62 per general test as listed on the ASE Register Now page; recertification tests are priced separately by ASE.

ASE says technicians must retest every five years to keep a certification; the recertification test for G1 has 28 questions and 45 minutes (ASE G1 test page).

Start with the heaviest areas of the content outline: Suspension and Steering (23.6%); Brakes (20.0%); Engine Systems (16.4%). Then work through the remaining areas, and finish with timed full-length practice runs of 55 questions in one sitting.

ASE publishes a study guide per test series and registration windows each year; this guide follows the 2026 edition of the G1 study guide as of October 2026.