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Dash Lights Brightness Controller
Controller Test
1. Before testing the controller, do the control unit
input test (see page 22-154).
2. Remove the gauge assembly (A) (see page 22-100).
RED/WHT
B
3. Disconnect the 22P connector (B).
4. At the gauge assembly, measure resistance
between the B4 and B5 terminals while rotating the
adjusting dial.
Resistance should vary from 0 to 20,000 ohms as
the dial is rotated.
5. If the resistance does not change, replace the
gauge assembly.
22-156
WHT/RED
A
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