Display Does Not Dim or Brighten With Dimmer

Display does not dim or brighten with dimmer

NOTE:
- Check the vehicle battery condition first.
- Check the connectors for poor connections or loose terminals.

1. Turn the ignition switch to ON (II).
2. Turn the combination light switch ON and OFF to see if the symptom can be duplicated.

Is the symptom duplicated?

YES - Go to step 3.

NO - Operation is normal at this time.

3. Turn the combination light switch OFF.
4. Operate the illumination control dial.

Does it operate normally?

YES - Operation is normal at this time.

NO - Do the display panel control unit input test.