Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 241 (LIGHTING SYSTEMS)
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Section 241 (Lighting Systems)
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Section 241 (Lighting Systems)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 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 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: Headlamp On Indicator, LED Dimming Or Backlight Lamps
- DTC B1480: Inadvertent Power Supply Voltage Circuit
- DTC B2575: Low Beam Headlamp Relay Control Circuit
- DTC B2580: High Beam Headlamp Relay Control Circuit
- DTC B2585: Park Lamp Relay Control Circuit
- DTC B2600: DRL Low Control Circuit
- DTC B2610: Backlight Lamps Control Circuit, Instrument Panel Lamps Dimming Control Or LED Dimming Signal Circuit
- DTC B2615 (Without YF7 RPO Code): Courtesy Lamp Supply Voltage
- DTC B2615 (With YF7 RPO Code): Courtesy Lamp Supply Voltage
- DTC B2620: BCM Monitored Voltage
- DTC B2625: Backlight Lamps Control Circuit, Instrument Panel Lamps Dimming Or LED Dimming Signal Circuit
- DTC B3801: Instrument Panel Dimmer Switch Signal Voltage
- DTC B3802: Headlamp Switch Park Lamps On Signal Circuit Or Headlamp Switch Headlamps On Signal Circuit
- Symptoms - Lighting Systems
- Backup Lamps Always On
- Backup Lamps Inoperative
- Courtesy Lamps Always On
- Courtesy Lamps Inoperative (Lamps)
- Courtesy Lamps Inoperative (Defeat Switch)
- Daytime Running Lamps (DRL) Inoperative (Lamps)
- Daytime Running Lamps (DRL) Inoperative (Defeat Switch)
- Dome Lamps Inoperative
- 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
- Alternate Aiming Procedure
- Fog Lamp Replacement - Rear
- Fog Lamp Bulb Replacement - Rear
- Position Lamp Replacement - Front
- Repeater Lamp Replacement
- Marker Lamp Replacement - Front Side (RPO Code T90, Export)
- Marker Lamp Replacement - Front Side (RPO Code 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
- License Lamp Replacement
- Tail Lamp Replacement
- Description and Operation
- Special Tools and Equipment
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.