|No shortcut to fix short circuit
Question : THE fuses for the headlight
and turn signal bulbs on my
2001 Proton Waja keep blowing regularly.
Friends have suggested that
the grounding of my vehicle
requires checking while others have advised a change of
battery. What I should do?
FUSES blow when too high a
current flow through them. If a
fuse is rated for five amperes, it
will blow when an electrical
current exceeding 5A flows
through it. As such, they are
safety devices that prevent an
overload of the electrical item
that they are supplying.
It is unlikely that poor electrical grounding is the cause of your
problem since poor earthing has the opposite effect -- too
little current flows.
It is also unlikely that the
battery would be the cause
since other instruments such as
the Engine Management Unit
(EMU) would also be affected
by a weak battery.
However, it is likely that
there is an electrical short
somewhere along the wiring
harness, and this is a job for an
auto electrician. Electrical problems such as these are not easy
to sort out and require experience and specialised knowledge. Do not, under any
circumstances, try to get around
an electrical short by substituting with fuses of a higher
ampere rating since this could
result in your entire wiring harness catching fire or the car
itself going up inflames!
Electricians have a saying about
fuses: "You go up, you blow