Section 790 (Lighting Systems)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 GMC Savana Special, 2006 GMC Savana Camper Special, 2006 GMC Savana, 2006 Chevrolet RV Cutaway, and 2006 Chevrolet Cutaway. 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 Code Index
- Diagnostic Starting Point - Lighting Systems
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- DTC B0951
- DTC B1480
- DTC B2575
- DTC B2580
- DTC B2585
- DTC B2600
- DTC B2610
- DTC B2615 (Without YF7)
- DTC B2615 (With YF7)
- DTC B2620
- DTC B2625
- DTC B3801
- DTC B3802
- Symptoms - Lighting Systems
- Backup Lamps Always On
- Backup Lamps Inoperative
- Courtesy Lamps Always On
- Courtesy Lamps Inoperative
- Daytime Running Lamps (DRL) Defeat Inoperative
- Daytime Running Lamps (DRL) Inoperative
- Dome Lamps Always On
- Dome Lamps Inoperative
- Fog Lamp Indicator Inoperative - Rear
- Fog Lamps Always On - Rear
- Fog Lamps Inoperative - Rear
- Hazard Lamps Always On
- Hazard Lamps Inoperative
- Headlamps Always On - Low or High Beam
- Headlamps Inoperative - High Beams
- Headlamps Inoperative - Low Beams
- Headlamps Inoperative - Low and High Beams
- Headlamps Inoperative - Flash to Pass
- High Beam Indicator Always On
- High Beam Indicator Inoperative
- Interior Backlighting Does Not Dim
- Interior Backlighting Inoperative
- Park, License, and Tail Lamps Always On
- Park, License, and Tail Lamps Inoperative
- Reading Lamp(s) Inoperative
- Stop Lamps Always On
- Stop Lamps Inoperative
- Turn Signal Lamps and/or Indicators Always On or Flashing
- Turn Signal Lamps and/or Indicators Inoperative
- Underhood Lamp Inoperative
- Vanity Mirror Lamp(s) Inoperative
- Repair Instructions
- Stop Lamp Switch Replacement
- Headlamp Switch Replacement
- Fog Lamp Switch Replacement - Rear
- Hazard and Turn Signal Flasher Replacement
- Vanity Mirror Lamp Bulb Replacement
- Dome Lamp Replacement
- Dome Lamp Bulb Replacement
- Underhood Lamp Replacement
- Headlamp Replacement - Sealed Beam
- Headlamp Bulb Replacement
- Headlamp Capsule Replacement
- Headlamp Aiming
- Fog Lamp Replacement - Rear
- Fog Lamp Bulb Replacement - Rear
- Position Lamp Replacement - Front
- Repeater Lamp Replacement
- Marker Lamp Replacement - Front Side (RPO T90)
- Marker Lamp Replacement - Front Side (RPO X88/Z88)
- Park/Turn Signal Lamp Replacement (Uplevel Vehicles)
- Park/Turn Signal Lamp Replacement (Base Vehicles)
- High Mounted Stop Lamp Replacement
- Cargo Lamp Replacement
- Backup Lamp Replacement
- Backup Lamp Bulb Replacement
- Tail Lamp Replacement
- Description and Operation
- Exterior Lighting Systems Description and Operation
- Interior Lighting Systems Description and Operation
- Special Tools and Equipment