Driving Excellence: How Circuit Check Is Elevating Automotive Testing

The automotive industry is on a rapid trajectory of innovation. From advanced driver-assistance systems (ADAS) and electrification to the growing complexity of vehicle electronics, manufacturers face mounting pressures to deliver exceptional quality, reliability, and safety — all while controlling costs and ensuring quicker time-to-market.

This is where Circuit Check’s deep expertise in automotive test solutions makes a difference. With a legacy of over 40 years in custom test systems and fixture design, we’ve partnered with leading automotive OEMs and suppliers worldwide to tackle their most demanding test challenges.

Why Automotive Electronics Testing Matters More Than Ever

Modern vehicles rely on thousands of interconnected electronic components — from sensors and infotainment systems to electronic control units and EV charging systems. As the number and complexity of these systems rise, so do the risks of field failures, warranty costs, and safety issues.

In this environment, test systems must not just verify functionality — they must anticipate real-world stress, withstand high volumes of production, and do it all with repeatable accuracy and minimal maintenance.

Circuit Check designs and builds automated test solutions that meet these exacting requirements, helping customers ensure that every product leaving the factory line performs as it should — every time.

Tailored Automotive Test Solutions: From Concept to High-Volume Production

One of the core strengths of Circuit Check is our full-service approach to automotive testing:

• Design & Verification through Production: We provide end-to-end electrical design, software development, and verification for each test system, ensuring it meets customer specs and handles the rigors of high-volume manufacturing.
• Innovative Test Fixtures: Our engineers are leaders in test fixture design and fabrication, creating solutions that connect reliably to devices under test (DUTs), even in challenging form factors or high-current applications.
• Repeatability & Durability: Automotive test systems must endure hundreds of thousands of runs. Circuit Check builds systems with longevity and low-maintenance performance in mind.
• Quality & Safety: We follow a rigorous design and validation process — rooted in ISO-compliant methodologies — that ensures quality, reliability, and safe operation at every stage.

This holistic process delivers not just test machines, but dependable strategic partners in manufacturing quality.

Real Results: Supporting the Future of Electric Vehicles

A prime example of our automotive expertise in action is our work with EV manufacturers and suppliers: when a major automotive company needed a custom test solution for a Level 2 residential EV charging station, our engineers delivered a robust, high-current capable system tailored to their needs.

This system featured:

• Specialized fixture design to safely handle currents up to 80 A
• High-flex wiring and precision probing to maintain electrical integrity
• Integration with Keysight’s SL1200A series to support comprehensive AC and EVSE testing

The result? A test platform capable of validating both EV charging stations and onboard vehicle systems — giving customers confidence across the entire electric mobility ecosystem.

Comprehensive Capabilities for Every Automotive Need

Circuit Check’s automotive expertise spans a broad range of test applications. Our solutions support testing for:

• ADAS and sensor systems
• Infotainment and communication modules
• Engine and transmission controls
• Wiring harnesses and harness assemblies
• Safety systems such as airbag controls and ABS
• Vehicle communications, radar, lidar, remote systems, and more

This wide capability ensures that whether it’s a simple electronic subassembly or a complex electric power system, Circuit Check has the experience and technology to deliver the right testing strategy.

Partnering for Long-Term Success

What sets Circuit Check apart isn’t just what we build — it’s how we partner with our customers. Our engineers collaborate closely with automotive teams to understand product requirements, anticipate failure modes, build scalable systems, and support ongoing production needs.

This collaborative spirit ensures not just a one-off test solution, but a long-term reliability partner that evolves with your product line and testing needs.

Looking Ahead

As automotive technology continues to transform — from autonomous systems to next-generation electrification — the need for reliable, high-performance testing becomes even more mission critical.

At Circuit Check, we’re proud to be at the forefront of that transformation — delivering innovative test solutions that help automotive innovators push boundaries with confidence.