Lexus SC 430 2006 Owner's Manual page 252

If there is an overload in the circuits from the battery
■
The fuses are designed to blow before the wiring harness is damaged.
CAUTION
When replacing fuses
■
Always use a genuine Lexus fuse or equivalent.
Never install an ordinary wire - even as a temporary fix.
This may cause extensive damage and possibly a fire.
NOTICE
Before replacing fuses
■
Have the cause of electrical overload determined and repaired by your Lexus
dealer.
4-3. Do-it-yourself maintenance
4
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