01604 750330

Engine Diagnostic Northampton

Are you experiencing problems with your vehicle or are there any fault symbols etc., showing on your dashboard?

Then it's high time for a check-up and proper vehicle diagnostics.

Here at Jacksons MOT Centre we have all the right technology and all the right experts to find out what's wrong with your vehicle and get it fixed quickly for you.

A modern car has a complex and sensitive vehicle diagnostic system.  With the expert read-out of the error memory, the time of the error search can be shortened, possible deficiencies can be recognized at an early stage and the correct measures can be taken.  In addition, an early readout of the fault memory can prevent damage which worsens with the progress of time.  It is therefore important to always keep an eye on the displays on the on-board computer of your car and to drive to the workshop on time for a read out the fault memory.  Here at Jacksons MOT Centre in Northampton, we offer the readout of the error memory including error diagnosis at a fixed price.

Fault finding by reading the fault memory

Modern vehicles are increasingly becoming a "driving computer".  The electronics control a multitude of processes in the car.  The driver must be able to rely on the functionality of the control units.  The vehicle diagnosis system measures the continuous technical data of the car via a network to sensors and sends it to a board computer. As soon as an error occurs, this is signaled to the driver by means of a control lamp, an acoustic signal or a display of the on-board computer.

The fault memory usually shows the cause of the fault quickly and avoids an extensive error search.  The on-board diagnostics (OBD) - also known as the vehicle diagnostics system - saves damage or malfunctions and displays them directly in the car cockpit.  The permanently incoming measured values are checked for plausibility on the basis of the limit values.  The fault is read and analyzed in each workshop using special hardware and software.

Our Jacksons MOT Centre workshop is equipped with an extensive range of analysis devices, which can be used to correctly evaluate the errors and data of the fault memory.

Devices for evaluating the errors:

Diagnostic tester;

Data logger;

Vehicle diagnosis system;

This is done in the workshop.

Our specialists analyze the data after reading the fault memory.

Not only the fault memory is read out in the workshop.  Also the expert data analysis and error diagnostics are included in the service.  As a rule, reading the error memory in our workshop can take up to an hour.  Deleting the error memory can be done in less than five minutes.

This is what we do during vehicle diagnostics:

We read out the error memory using the special hardware and software;

Analyze the readout data and error code;

Prepare fault diagnosis and, if necessary, a repair plan including the cost estimate;

Erase the error code from the error memory (if necessary after repair).

If, during the readout of the memory and after the data analysis, it was determined that a repair is necessary, you will receive a quotation from our workshop with an estimate for the problems identified.  Whether the defect should be repaired in the workshop, however, is entirely up to you. There will be no pressure from our side.  Even if you only want the diagnostics done by us and get the repairs done at a different garage, it is absolutely fine with us.

Static and sporadic errors in the error memory.

When evaluating faults, a distinction is made between static and sporadic measurement errors.  Static errors are permanently stored in the error memory, whereby sporadic errors in the error memory are automatically cleared by the system once the error no longer occurs within a driving cycle.  Integrated driving cycle counters measure the intervals automatically.

Read error memory and then delete?

After the repair, the diagnostics command can be used to erase the warning in the fault memory.  Meanwhile, the fault memory in the car is however intelligently programmed and can not simply be deleted. Depending on the severity of the error, the error can not simply be reset and ignored.  An existing reference to a problem is intended to draw the driver's attention permanently.  This also protects prospective buyers from any forgotten or concealing problems with the electronics of the vehicle.

Read control unit & find fault

Various control units in the car are assigned to different components which only measure corresponding errors.   In the case of error analysis, the control units can be requested completely either manually or according to the vehicle type, completely automatically.  If necessary, the workshop will delete the corresponding fault via a diagnostic command.

Typical errors of the electronics, which can be read via control units, are:

Sensor interruption;

Short circuit against ground;

Short circuit against plus;

We hope you found some of the information on this page useful.  If you have any questions, please do not hesitate to contact us.  Give us a call - or just come to see us at our workshop.

Engine Diagnostic Northampton - Jacksons MOT Centre

For MOT Bookings, Repairs and Quotes Call 01604 750330 or Email