Operation CHARM: Car repair manuals for everyone.

Diagnostic Procedure




Display day/night mode does not work or does not work properly

Diagnostic Procedure:

Symptom Troubleshooting Symptom Troubleshooting

Also check for:

- Navigation display unit
- HVAC control unit
- Display brightness set to High
- Gauge control module (CAN communication)
- The wrong color DVD is installed
- The DVD is damaged or dirty
- Harness/fuses/switches