Locate Us

9233 Archibald Ave, Rancho Cucamonga, CA 91730

Opening Hours

Mon - Fri: 9:00 AM - 5:00 PM

Contact Us

(909) 493-1855

24-Month/24,000-Mile Warranty

Premium Automotive Diagnostics

in Rancho Cucamonga

Uncover hidden issues in your vehicle with cutting-edge technology and ASE-certified technicians.

Book Your Diagnostic Now!

Why Trust Master Auto Care with Your Diagnostics?

Up-to-Date Technology

We use OBD-II scanners and state-of-the-art diagnostic tools to accurately identify issues.

ASE-Certified Technicians

Our experts have years of experience diagnosing everything from electrical faults to complex engine problems.

Complete Transparency

We explain every issue in detail and offer the best solution for your vehicle.

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Our Premium Diagnostic Services

From dashboard warning lights to strange noises, our team is fully equipped to diagnose any vehicle issue.

With advanced technology and a meticulous approach, we guarantee accurate results.

Engine Diagnostics

We identify engine issues, from check engine lights to performance problems, to keep your vehicle running smoothly.

Electrical Diagnostics

We resolve issues in your electrical systems, battery, and wiring with precision to avoid unexpected failures.

Suspension Diagnostics

We detect suspension issues to ensure a smooth and safe ride.

Complete Vehicle Diagnostics

A thorough inspection of all vehicle systems to prevent costly repairs and maximize performance.

What Our Customers Are Saying

Our Reviews

The check engine light had me worried, but Master Auto Care diagnosed it in minutes. Fast and reliable service!

- Luis R.

They found an electrical issue that other shops couldn’t. Now my car runs like new.

- Sofia T.

Benefits of Our Advanced Diagnostics

A precise diagnostic service doesn’t just fix problems—it enhances your driving experience and protects your investment. Here’s why our service is the best choice:

Breakdown Prevention: We detect issues early to avoid costly future repairs.
Performance Optimization: Boost your vehicle’s efficiency and power with accurate diagnostics.
Peace of Mind on the Road: Drive with confidence knowing your vehicle is in excellent condition.

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Don't ignore warning signs.

Get precision diagnostics

Master Auto Care, including Engine Diagnostics, Electrical Testing, Check Engine Light Scans, Suspension Inspections, Full-System Evaluations, and More!