Section 110 (Lighting Systems)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Lighting Systems
- Diagnostic System Check - Lighting Systems
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B0951: Dimming Circuit
- DTC B1480: Battery Rundown Protection Circuit Malf
- DTC B2527: Front Fog Lamp Circuit Low
- DTC B2530: Front Foglamps Control Circuit
- DTC B2540: Rear Foglamps Control Circuit
- DTC B2550: Backup Lamps Control Circuit
- DTC B2575: Headlamp Control Circuit
- DTC B2580: Headlamp High Beam Control Circuit
- DTC B2585: Parklamp Control Circuit Malfunction
- DTC B2610: Passenger Compartment Dimming 1 Circuit
- DTC B2615: Passenger Compartment Dimming 2 Circuit
- DTC B2620: Display Dimming Input Circuit
- DTC B2625: Display Dimming Pulse Width Modulation (PWM) Output Circuit
- DTC B2645: Ambient Light Sensor Circuit
- DTC B3801: Passenger Compartment Lamp Request Circuit
- DTC B3802: Parklamps Request Circuit
- Symptoms - Lighting Systems
- Backup Lamps Always On
- Backup Lamps Inoperative
- Clearance Lamps Inoperative
- Cornering Lamps Always On
- Cornering Lamps Inoperative
- Courtesy Lamps Always On
- Courtesy Lamps Inoperative
- Daytime Running Lamps (DRL) Defeat Inoperative
- Daytime Running Lamps (DRL) Inoperative
- Daytime Running Lamps (DRL) On with Park Brake Applied
- Fog Lamp Indicator Inoperative
- Fog Lamps Always On
- Fog Lamps Inoperative
- Fog Lamps Always On - Rear
- Fog Lamps Inoperative - Rear
- Hazard Lamps Always On
- Hazard Lamps Inoperative
- Headlamp Switch On Indicator Always On
- Headlamp Switch On Indicator Inoperative
- Headlamps Always On - Low or High Beam
- Headlamps Inoperative - High Beams
- Headlamps Inoperative - Low Beams
- Headlamps Inoperative - Flash to Pass
- Headlight Leveling Inoperative
- High Beam Indicator Always On
- High Beam Indicator Inoperative
- Interior Backlighting Does Not Dim
- Interior Backlighting Inoperative
- License Lamps Inoperative
- Marker Lamps Inoperative
- Memory/Heated Seat Switch Backlighting Inoperative
- Park Lamps Inoperative
- Stop Lamps Always On
- Stop Lamps Inoperative
- Tail Lamps Inoperative
- Tail, Marker, and License Lamps Always On
- Tail, Marker, and License Lamps Inoperative
- Turn Signal Lamps and/or Indicators Always On or Flashing
- Turn Signal Lamps and/or Indicators Inoperative
- Vanity Mirror Lamp(s) Inoperative
- Repair Instructions
- Stop Lamp Switch Replacement
- Headlamp Switch Replacement
- Ambient Light Sensor Replacement
- Hazard and Turn Signal Flasher Replacement
- Dome and Reading Lamp Bulb Replacement
- Vanity Mirror Lamp Bulb Replacement
- Dome Lamp Replacement
- Headlamp Replacement (TrailBlazer)
- Headlamp Replacement (Envoy, Envoy XUV)
- Headlamp Replacement (Bravada)
- Headlamp Replacement (Rainier)
- Headlamp Bulb Replacement (TrailBlazer)
- Headlamp Bulb Replacement (Bravada, Envoy, Envoy XUV, Rainier)
- Headlamp Aiming
- Fog Lamp Replacement - Front (Rainier)
- Fog Lamp Replacement - Front (Bravada)
- Fog Lamp Replacement - Front (Envoy, Envoy XUV, TrailBlazer)
- Fog Lamp Bulb Replacement - Front
- Fog Lamp Aiming Procedure
- Park/Turn Signal/Side Marker Lamp Bulb Replacement (Envoy)
- Park/Turn Signal/Side Marker Lamp Bulb Replacement (TrailBlazer)
- Park/Turn Signal/Side Marker Lamp Bulb Replacement (Bravada)
- Park/Turn Signal/Side Marker Lamp Bulb Replacement (Rainier)
- Cornering Lamp Replacement
- Cornering Lamp Bulb Replacement (Rainier)
- Cornering Lamp Bulb Replacement (Envoy, Envoy XUV)
- Cornering Lamp Bulb Replacement (Bravada)
- Clearance Lamp Replacement
- High Mounted Stop Lamp Replacement (Envoy, TrailBlazer, Rainier, Bravada)
- High Mounted Stop Lamp Replacement (Envoy XUV)
- Cargo Lamp Replacement (Envoy XUV)
- Backup Lamp Replacement (GMC)
- Backup Lamp Bulb Replacement (GMC)
- License Lamp Replacement
- Tail Lamp Replacement
- Tail Lamp Bulb Replacement
- Tail Lamp Circuit Board Replacement
- Side Marker Lamp Replacement (Oldsmobile)
- Description and Operation
- Special Tools and Equipment