Check the signal and the cause
A sensor code can be caused by the sensor itself, its wiring, a connector or the condition it measures. We use diagnostic information and appropriate checks to establish what needs attention.
Replacing a part by code alone can leave the original problem unresolved.
Sensors across the vehicle
We can assess sensor faults across the vehicle, including:
- ABS and wheel-speed sensors.
- Lambda and oxygen sensors.
- Oil-pressure and fuel-related sensors.
- Manifold-pressure (MAP), air-flow (MAF) and turbo boost-pressure sensors.
The correct part, fitting procedure and any reset depend on the car and the fault.
Diagnosis and sensor replacement costs
Diagnosis and repair quote
Fault finding, parts and repair work are priced separately. A stored sensor code is a starting point for investigation, not a confirmed replacement diagnosis.
See live prices →The reading needs to make sense
A sensor measures a physical condition, so an unusual reading can be an accurate report of a mechanical problem. Low pressure, an air leak or an exhaust fault may all need investigation before condemning the sensor.
We consider relevant data, the signal path and the condition being measured. This helps avoid fitting a new part while leaving the underlying cause in place.
Access and post-repair checks affect the job
Some sensors are readily accessible; others sit in hot, corroded or restricted areas and need more preparation. Wiring damage or a seized fitting can change the work involved.
We explain the scope of the quote and discuss additional findings before proceeding. Any reset, adaptation or follow-up check depends on the system rather than a single procedure applied to every replacement.
Check the repair afterwards
Once the repair is complete, we check the relevant operation and clear faults where appropriate. Some systems need additional checks or a reset procedure. We explain what was found and what was replaced.
Frequently asked questions
Can you replace an ABS sensor?
Yes. We first check that the sensor is the cause of the fault and identify the correct part.
Is an oil-pressure warning always a sensor fault?
No. It can indicate a real oil-pressure problem, so the cause needs checking rather than assuming the sender is faulty.
Can you just clear the code?
Clearing a code does not repair the underlying fault. We discuss diagnosis and the appropriate fix first.
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Your local Hertford workshop
Visit D & B Autocare at 12 Mimram Road, Hertford, SG14 1NN. We welcome drivers from Hertford and the surrounding towns.
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