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PCB Functional Testing (FCT) for

Automotive, Industrial, and IoT Electronics

Functional Testing (FCT) verifies whether a fully assembled PCB behaves as intended under real operating conditions. Unlike ICT or AOI, FCT evaluates true system-level behavior — the interaction between power, firmware, timing, and interfaces.

FCT is widely adopted in automotive electronics, industrial automation systems, IoT devices, medical equipment, and telecom hardware where reliability is non-negotiable. Whether the product is built in Asia, Europe, or North America, the goal remains the same: prevent field failures and ensure consistent performance before mass production.

If you need a board that simply cannot fail, this is where the conversation starts.

How To Test PCB
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Comprehensive PCB

Functional Test Capabilities & Methods

We provide full test coverage for prototypes, small-batch builds, and mass-production programs in sectors such as automotive, industrial control, IoT, telecom, and medical electronics.

Functional
Test Coverage

  1. Power module testing

    Startup, protection, load behavior

  2. Communication interfaces

    UART, USB, CAN, Ethernet, SPI/I2C

  3. MCU/SoC programming and boot validation
  4. Logic and signal timing verification
  5. RF basic functionality (Wi-Fi / BLE, if applicable)
  6. Custom features such as LEDs, sensors, motors, displays, buttons, and more
  1. FCT Fixture Testing

    Ideal for mass production with automated pass/fail judgment

  2. Flying Probe Testing

    Fixture-less option for prototypes and small batches

  3. Boundary Scan / JTAG

    Perfect for dense or no-test-pad boards

  4. ATE Automated Test Platforms

    Consistent high-volume test execution

  5. Custom Test Software

    LabVIEW, C, Python for automated data logging and analysis

Test Methods

Upload Gerber/BOM to Get a Test Plan

Design for Testability(DFT)

Build Boards That Are Easy to Test

Effective DFT reduces fixture cost, improves test coverage, and enables smoother scaling from NPI to mass production

 — particularly important for automotive and industrial-grade PCBs that require long-term reliability.

WE OFFER

A free DFT review to help optimize your design for functional testing and reduce overall production risk.How To Test PCB

Our DFT Recommendations Include:

  1. Add accessible test pads for critical nodes
  2. Reserve debugging/programming interfaces (JTAG, SWD, ISP, UART)
  3. Avoid mechanical obstructions that block fixture probes
  4. Allow current/voltage access for high-power circuits
  5. Align test flow early to avoid redesign delays

Request Free DFT Review

Service Models Cost Structure & Functional Test Workflow

We Support

Everything from fast-turn NPI builds in Asia to high-volume functional testing programs used by automotive and industrial customers across Europe and North America.


Service Scope (PCB testing methods)

  • Prototype functional testing (fast NPI cycles)
  • Small-batch pilot testing for IoT, telecom, and medical devices
  • High-volume automated FCT lines for global OEMs


Cost & Lead-Time Factors

  • Number of test points
  • Fixture requirement and complexity
  • Test software development effort
  • Test cycle time (seconds per board)
  • Production scale (NPI Mass Production)


Standard Workflow

  • Requirements & documentation review
  • DFT check and test plan definition
  • Fixture design and software development
  • Functional test execution with automated judgment
  • Test report generation and full traceability
  • Failure analysis (FA) and improvement suggestions

Ask for a Standard Lead-Time Table

Quality Assurance

Traceability & Compliance

Our quality system ensures consistent and traceable results for every PCBA

 — whether it’s part of an automotive controller, an industrial automation module, or a medical device requiring strict process compliance.


Key Quality Features

  • ISO-certified processes (ISO9001 / IATF16949 / ISO13485)
  • MES-based traceability with barcode binding
  • Detailed test reports with measurements and logs
  • Failure analysis (FA) and corrective action guidance
  • Long-term statistical insights for product improvement


Request Free DFT Review

How To Test PCB

You can submit files via our Message Box for a DFM check and pricing.

Proven by 7 industries, 4000+ customer projects

How To Test PCB

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