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More Diagnostic Information
Most modern vehicles today use an on-board computer
to monitor and manage several of your car's operating
systems. These on-board computers have massive amounts
of sensors and memory.
If the on-board computer detects a fault or any irregularities
in your car's operating systems, it will often turn
on a dashboard warning light or MIL (Malfunction Indicator
Lamp). This lamp is usually an orange symbol similar
to an engine. Using various different specialised scanners,
we can access the on-board computer via a 16 pin diagnostic
socket inside the vehicle. The fault codes are then
read off the computer. This enables us to give a more
accurate diagnosis of the problem.
The European Commission introduced Block
Exemption on the 1st October 2002.
Most vehicle manufacturers trouble codes were standardised.
Now all cars use five character codes to report problems.
The computer can even remember intermittent problems
that have returned to normal. Many manufacturers still
have information to other systems on vehicles which
didn’t fall under the ruling of Block
Exemption.
Block Exemption was
for emission related systems only.
Systems like ABS, Airbags, DSC (Traction Control),
Lighting etc need separate communication codes. These
can be accessed by us with the use of specialist diagnostic
equipment.
Dashboard warning lights come on for a reason, usually
if something substantial has occurred. Less serious
problems are also detected and stored for analysis using
diagnostic equipment. Early detection of these problems
can reduce repair costs and prevent breakdowns.
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