Modern vehicles are clever machines, constantly monitoring themselves for faults. When something isn’t right, the ECU (Engine Control Unit) stores a fault code and usually switches on a dashboard warning light.
But once the problem is diagnosed, can a car diagnostic test actually clear those codes? The answer is yes, but there’s more to it than pressing a button.
When a technician plugs into your car’s OBD-II port, their diagnostic tool can:
So yes, a proper diagnostic tool can remove error codes from the ECU’s memory. But whether they stay gone depends on one thing: the underlying issue.
Here’s the key distinction:
If the root cause isn’t fixed, the fault code will return as soon as the ECU detects the problem again.
Some drivers think that clearing codes = fixing the car. Unfortunately, that’s not the case.
This is why professional diagnostics are essential. They identify why the code was triggered, not just what the code says.
The role of advanced diagnostics
At Technical Vehicle Solutions, our diagnostic process goes beyond reading and clearing:
That means when we clear a code, we do it with confidence the problem has been addressed properly.
Many cheap OBD-II readers allow code clearing. But be cautious:
Professional diagnostics saves time, money, and guesswork.
Yes, but remember:
If your car has a warning light or stored codes, we can help. At Technical Vehicle Solutions, our advanced diagnostics service finds the real cause and ensures your car leaves in top condition.
📞 Call us today on 01763 230411 to book your diagnostic appointment.
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