Mazda 2002 6 Workshop Manual page 950

Terminal C inspection
1. Measure the wave pattern of the terminal C on
the panel light control switch using an
oscilloscope.
2. Set the headlight switch to either the TNS or
headlight position.
3. Set the panel light control switch to the brightest
position.
4. Verify that the pattern on the screen is as shown
in the figure.
5. Verify that the pattern on the screen matches the
pattern shown in the figure as the panel light
control switch is gradually turned to the darkest
position.
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