Mark Smith is a hands-on DIY auto enthusiast with a knack for methodical diagnostics on modern diesel vans. Using a YOUCANIC scanner and a multimeter, he recently traced a P2112 (Throttle Actuator Stuck Closed) on a 2020 Peugeot Boxer 2.2 BlueHDi—running active tests, confirming 12V/5V/ground at the connector, checking live data, and cleaning the throttle body before pinpointing a faulty throttle body actuator. Comfortable with OBD-II scan tools, active tests, and electrical checks, Mark documents clear, step-by-step findings to help other owners get out of limp mode and back on the road.
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