Post by Engr. Olayiwola Adeleke (@Elizcrown)

You should pay for vehicle diagnostics because a proper diagnosis is skilled work, not just plugging in a scanner.
A technician invests in:
Expensive diagnostic equipment and software subscriptions.
Training and experience to interpret fault codes and test results correctly.
Time spent testing circuits, sensors, modules, wiring, and mechanical systems.
The risk of identifying the wrong fault, which can lead to unnecessary parts replacement.
For example, if a scan tool shows a misfire code, the actual problem could be:
A faulty spark plug
A bad ignition coil
Low fuel pressure
A wiring issue
Engine mechanical problems
The diagnostic process determines which one is truly causing the fault. Without diagnosis, parts may be replaced unnecessarily, costing much more than the diagnostic fee.

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