Dashlight Brightness Control

Dash Light Controller:

Dashlight Controller Circuit Diagram:

Dashlight Controller Test:

Dashlight Controller Testing

NOTE: The control unit is built in the dashlight brightness controller.

Remove the dashboard lower panel. Push out the controller from behind the instrument panel, then disconnect the 3-P connector from the controller.
Make the following input tests at the harness pins. If all tests prove OK, yet the dashlights still can not be controlled, check the connector for good connection. If OK, then replace the controller.