Points to bear in mind when diagnosingfaults
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Points to bear in mind when diagnosing
faults
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It is not possible to give any general rules for the way fault diagnosis should be
carried out in each individual case. Depending on the fault symptoms and other available
information, a particular method may be best in one situation and unsuitable in another.
However, the following points may serve as guidance when diagnosing faults in the Audio
System.
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1.
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Check that fuses 4, 13 and 9
are intact and live.
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2.
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Check the fuse at the rear of the radio.
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3.
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Check connector pins for corrosion, slide-out and poorly-crimped connections as
well as for looseness or anything else that may have an adverse effect on conductivity.
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4.
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Check that the power supply and ground connections for electrical equipment
are correct.
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5.
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Connectors should generally be dismantled and assembled with the ignition in
the OFF position. Resistance measurement should also take-place with the ignition in the
OFF position.
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