The short answer
A scan tool retrieves information; it does not identify every failed part. Accurate diagnosis combines the customer's symptom, fault data, service information, measurements, and targeted tests before a repair is recommended.
How Aspen approaches auto diagnostics
Aspen's diagnostic process is designed to replace guessing with evidence. The technician confirms the concern, checks relevant technical information, evaluates data, performs tests that narrow the cause, and documents the findings. Some intermittent or network-related problems require additional time or a second testing stage.
Signs this service may be relevant
Symptoms identify where testing should begin; they do not prove which part has failed.
Stop and get guidance when:
- A red warning light, overheating warning, oil-pressure warning, or severe loss of power
- A flashing check-engine light accompanied by shaking or misfiring
- Smoke, fuel odor, sparking, or signs of an electrical short
- The vehicle stalls in traffic or cannot be operated safely
When safe operation is uncertain, do not rely on a webpage to make the drive/no-drive decision. Call the selected shop or arrange towing.