Step  | Action  | Normal Result(s)  | Abnormal Result(s)*  | 
|---|---|---|---|
1  | Place the headlamp and panel dimmer switch in the PARK position.  | 
  | |
2  | Rotate the panel dimmer switch in both directions to increase and decrease the brightness of the interior lamps.  | The dimmable interior lamps increase and decrease brightness in direct response to the panel dimmer switch position.  | Instrument Panel Lamps Do Not Dim .  | 
* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.  | |||