We’d say no, and not just as a liability disclaimer. Wolf oven control boards sit close to line-voltage wiring, and the panel housing is designed to be serviced with the unit properly de-energized at the breaker — not just unplugged or switched off at a wall control. The shock hazard is only half of it. An error code narrows the cause to a handful of parts, and without knowing which of those applies to your specific model, taking the housing apart tends to disturb harnesses and connectors that were working perfectly well before the panel came off.
If you’re comfortable with one DIY step, it’s the safe one: a full power cycle at the breaker (off for a minute or two, then back on) before calling, and noting exactly what the display showed and when. That information alone often speeds up the actual diagnostic visit.