In-vehicle electronic control units (ECU / controllers) are the core of automotive electronics, handling computation and control tasks across the vehicle. Domain controllers, T-Boxes, body controllers and dash cams all fall into this category.
Typical products
- Domain controllers (cockpit, ADAS and body domains)
- T-Box / vehicle gateway
- Body control module (BCM)
- IGB power and distribution box
- Dash cam
- Engine ECU
- Transmission control unit (TCU)
Common test requirements
- Full EMC scope: emission and immunity — the most frequent problem area for in-vehicle electronics.
- High and low temperature plus temperature cycling: verifies the thermal margin of the MCU and peripheral devices.
- Vibration and mechanical shock: verifies PCB solder joints and connectors under road excitation.
- Ingress protection: sealed ECUs need an IP protection assessment.
- Power-related: load dump, reverse polarity, overvoltage and other electrical loads.
Typical failure modes
- Intermittent MCU resets after temperature cycling.
- Rising connector contact resistance causing CAN frame loss.
- Water ingress into the housing corroding the PCB.
- ADC sampling drift after vibration.
- Flash data corruption after electrical transients.
Selection guidance
- Confirm the mounting location — it directly sets the vibration and temperature severity class.
- Confirm the vehicle type (passenger car, heavy truck, construction vehicle); excitation levels differ widely.
- Confirm the functional safety level required, which determines whether FMVSS-related verification is needed.
- Confirm the OEM validation requirements — they differ markedly between manufacturers.
Service notes
Our laboratory holds both CMA and CNAS accreditation, covers about 10,000 m2 and runs more than 500 sets of equipment. All testing is carried out in our own laboratories — nothing is subcontracted. Plant visits and on-site witnessed testing are welcome.
Scheduling follows the actual project pipeline. You can state your preferred lead time when you submit samples; we will confirm a feasible plan against current capacity and keep you updated at each milestone.
