Fault Code Diagnostics

All modern cars are produced with computerised engine management systems that generate OBD (On Board Diagnostics)  “fault codes” if anything goes wrong with the vehicle.  All the driver usually sees is an illuminated warning light on the dash telling him that something is amiss, but this could be anything from a simple fuse blown to a major engine problem.

In the past, where vehicle performance remained unaffected, some drivers have simply ignored these warning lights, however, from this year (2012), the MOT test will also include checks for the correct function of the following warning lights, where fitted:

• Electronic parking brake warning light
• Electronic stability control (ESP) warning lights
• Headlight main beam warning light
• Electronic power steering warning light
• Brake fluid level warning light
• Tyre pressure monitoring system warning light
• Air bag warning light
• Seat belt pre-tensioner warning light

Proper in-depth diagnosis requires a special OBD-II Code Reader, which is plugged into the car’s system so that the fault can be identified and, where necessary, rectified.  The warning lights can then be reset.

Our state-of-the-art equipment enables us to read the full range of fault codes on over 90% of the cars currently on the road in this country and, once identified, we can usually rectify the problem considerably cheaper that the vehicle main dealerships.