Yes, all external lighting sources, including low beams, high beams, fog lights, daytime running lights, reverse lights, and brake lights, are included in the mandatory power-on testing.

Parts availability depends on the brand's official presence in your market, but even unsupported brands can be maintained through direct ordering. Check three channels first: the brand's official dealer network (if any), third-party importers who specialize in Chinese auto parts, and generic equivalents. For wear items like brake pads, filters, and wipers, aftermarket suppliers usually stock cross-references by VIN. For model-specific parts — headlights, sensors, control modules — order directly from China. Ask your exporter for the parts catalog by VIN, confirm OEM part numbers, and compare prices. A turbocharger that costs $900 from a local dealer often ships from China for $350 plus $80 freight. Practical tips: bundle multiple parts into one shipment to amortize freight; ask for DDP (delivered duty paid) pricing so customs clearance is handled; and always verify part numbers against your VIN before paying, as Chinese models have running changes mid-year. Keep a small stock of common wear parts — oil filters, air filters, spark plugs — to avoid a 4-6 week wait for routine maintenance.

It's extremely difficult. Unauthorized modifications can lead to module current overload protection, resulting in a lock. In China, you need to use the factory online engineer account to reprogram it. It's basically impossible to perform online decoding overseas. We strongly warn against blindly modifying the electrical systems of modern integrated circuit vehicles.