Safety

The starter spins briskly, there is fuel, there should be a spark — and the engine will not catch. If a key or car-with-padlock symbol flashed on the

Pedal to the floor and the car barely moves, refusing to go past two thousand rpm. That is what electronic throttle protection looks like — and nine t

Everything lit up at once — check, ABS, stability — and the scanner returned codes starting with U. This is almost never fried electronics: usually a

The red oil can lit up, or the scanner returned P0521 — and you have a second to decide whether the sensor is lying or the engine really has no pressu

The decision is made in a minute at the roadside. In order: what means stop now, what means you can get home, and what means nothing happened at all.

The ABS light is on, and the app says «no faults». The tool is not broken — it is looking elsewhere, and here is why.

The engine dies at speed and the steering and brakes go heavy at once. Safety first, causes second.

The needle is climbing. The next five minutes decide whether this costs a thermostat or a cylinder head.

A steady lamp means «look into it soon». A blinking one means «stop». Two different messages, and the difference is expensive.