Controller Test

Dash Lights Brightness Controller

Controller Test

1. Before testing the controller, do the control unit input test.




2. Remove the gauge assembly (A).
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.