Instrument Panel And Interior Switches Illumination

• Description And Operation
  • Instrument Panel and Interior Switches Illumination - Overview
    • Dimmable Backlighting
    • Non-dimmable Backlighting
  • Instrument Panel and Interior Switches Illumination - System Operation and Component Description
    • System Diagram (Non-Networked Illumination)
    • Non-Networked Illumination Operation
    • Field-Effect Transistor (FET) Protection
    • System Diagram (Networked Illumination)
    • Network Message Chart
      • IPC Network Input Messages
      • APIM, FCIM and FCDIM Network Input Messages
      • HVAC, DDM and PDM Network Input Messages
    • Networked Illumination Operation
    • Component Description
      • Dimmer Switch
• Diagnosis And Testing
  • Instrument Panel and Interior Switches Illumination
    • DTC Charts
      • DTC Chart: Body Control Module (BCM)
      • DTC Chart: Driver Door Module (DDM)
      • DTC Chart: Passenger Door Module (PDM)
    • Symptom Chart: Instrument Panel and Interior Switches Illumination
    • Pinpoint Tests
      • Pinpoint Test A: All DIMMABLE Non-Networked Illumination Is Inoperative (Networked Illumination Functions Correctly)
      • Pinpoint Test B: All DIMMABLE Non-Networked Illumination Is Always On (Networked Illumination Functions Correctly)
      • Pinpoint Test C: All DIMMABLE Illumination (Networked And Non-Networked Sources) Does Not Dim Or Increase Brightness
      • Pinpoint Test D: The Steering Wheel Switch(Es) Illumination Is Inoperative
      • Pinpoint Test E: One Or More DIMMABLE Non-Networked Illumination Source Is Inoperative
      • Pinpoint Test F: The Passenger Front, RH (Right-Hand) Rear Or LH (Left-Hand) Rear Window Control Switch Illumination Is Inoperative Or Always On (One-Touch Up And Down Front Windows)
      • Pinpoint Test G: The Front Door Lock Switch Illumination Is Inoperative Or Always On (With One-Touch Down Driver Window)