04 / BEFORE YOU BUY
Check for hidden faults, recently cleared memory and mileage inconsistencies before buying a second-hand car.
See the walkthrough ↓PD-1 + YOUR PHONE · DISPLAY OPTIONALFull health scan
Run a full health scan across supported systems, including the engine, transmission, brakes, chassis and body electronics. PD-1 can surface stored issues even when the check engine light is off. Review each finding before discussing the car’s condition.
Ask the seller’s permission. Park safely and switch the vehicle off before connecting PD-1, then follow the app’s scan instructions.
Next step ↓Cleared fault memory
PD-1 checks for signs that fault-code memory was recently cleared, where supported. A clear dashboard or an empty fault list is not the whole story. Ask the seller about any reset and arrange follow-up checks.
Next step ↓Mileage consistency
PD-1 uses available OEM live data from the car’s modules, fault codes, freeze frames and supported mileage records to estimate possible mileage tampering. Compare the findings with the odometer and service history before buying.
Next step ↓Similar-model insights
Compare the scan with similar car models in the PD-1 database. See recurring faults and how this car’s reported issues compare, so you know what to ask about during an independent pre-purchase inspection.
Your next step ↓A question for the seller and your inspector
Illustrative guidance, not a customer testimonial.
A MORE INFORMED NEXT STEP
Start with PD-1 and the app. Full Scan coverage, fault-memory checks and mileage records depend on the vehicle and supported control units. Confirm the checks you need for the exact car before relying on them.