There are several methods you can use to change the route destination.
Visual Index
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Wiper/Washer Switch Test/Replacement
Remove the steering column covers.
Disconnect the dashboard wire harness 8P connector (A) from the wiper/washer
switch (B).
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Clutch Wave-Plate Phase Difference Inspection (A/T)
Place the clutch wave-plate (A) on a surface plate, and set a dial
indicator (B) on the wave-plate.
Find the bottom (C) of a phase difference of the wave-plate, zero the
di ...