CQ ELECTRONICS BLOG
Diagnosis and repair notes for automotive electrical faults, wiring, ECUs and modules — real workshop cases from CQ Electronics in Brisbane.
A Hyundai Tucson stuck in fail-safe with an empty fault memory. We traced it to a failed VN5012AK high-side driver on the Bosch MEDG17.9.8 ECU board, explain how that chip works from its datasheet, and show the repair at CQ Electronics Brisbane.
Airbag light on after an accident? See what the SRS light means, the safe checks to do first, why a scan tool cannot clear crash data, and how an airbag module reset works for all car makes in Brisbane, from $89 at CQ Electronics.
An ECU that stopped communicating traced to leaking, aged capacitors that corroded traces off the MCU's legs. The Brisbane repair: microscopic wire reconstruction and UV conformal coating.
Fitting an Apple CarPlay head unit in Brisbane? Here's why we bench-test every unit first: current draw, ACC sleep behaviour and CarPlay/camera function, before it goes anywhere near your car.