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 MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1426 (LIGHTING SYSTEMS)
2006 Chevrolet Suburban C2500, 6.0 U
Section 1426 (Lighting Systems)
2006 Chevrolet Suburban C2500, 6.0 USECTION Section 1426 (Lighting Systems)
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Diagnostic Starting Point - Lighting
- DTC B1395
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B2530
- DTC B2545
- DTC B2575
- DTC B257A
- DTC B2580
- DTC B2585
- DTC B2600
- DTC B2610
- DTC B2615
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B2625
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Actions Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B2645
- DTC B2652
- DTC B3445
- DTC B3600
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Actions Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B3884
- DTC C0277, C0297, or C0890
- Symptoms - Lighting
- Backup Lamps Malfunction (Automatic Transmission)
- Courtesy Lamps Malfunction
- Daytime Running Lamps Malfunction
- Front Fog Lamps Malfunction
- Hazard Lamps Malfunction
- Headlamps Malfunction
- Interior Backlighting Malfunction (w/AN3)
- Interior Backlighting Malfunction (w/o AN3)
- Park, License, and/or Tail Lamps Malfunction
- Stop Lamps Malfunction
- Turn Signal Lamps and/or Indicators Malfunction
- Repair Instructions
- Stop Lamp Switch Replacement (With Adjustable Pedals)
- Stop Lamp Switch Replacement (Without Adjustable Pedals)
- Headlamp Switch Replacement (with RPO SLT)
- Headlamp Switch Replacement (without RPO SLT)
- Fog Lamp Switch Replacement (with RPO SLT)
- Fog Lamp Switch Replacement (without RPO SLT)
- Ambient Light Sensor Replacement
- Outside Rearview Mirror Courtesy Lamp Replacement
- Dome Lamp Replacement
- Headlamp Replacement (Chevrolet)
- Headlamp Replacement (GMC HD)
- Headlamp Replacement (HD Diesel)
- Headlamp Bulb Replacement (Chevrolet)
- Headlamp Bulb Replacement (GMC)
- Headlamp Aiming (Chevrolet/GMC)
- Front Fog Lamp Replacement (Chevrolet)
- Front Fog Lamp Replacement (GMC)
- Front Fog Lamp Bulb Replacement (Chevrolet)
- Front Fog Lamp Bulb Replacement (GMC)
- Fog Lamp Aiming
- Front Side Marker Lamp Bulb Replacement (GMC)
- Roof Marker Lamp Replacement (Without SRW)
- Roof Marker Lamp Replacement (U01)
- Parking and Turn Signal Lamp Bulb Replacement (Chevrolet)
- Parking and Turn Signal Lamp Bulb Replacement (GMC)
- Pickup Box Identification Lamp Replacement (Chevrolet HD)
- Pickup Box Identification Lamp Replacement (GMC HD)
- Rear Fender Clearance Lamp Replacement
- High Mount Stop Lamp Replacement (Extended and Crew Cab)
- High Mount Stop Lamp Replacement (Regular Cab)
- High Mount Stop Lamp Bulb Replacement (GMC Denali)
- Backup Lamp Bulb Replacement (Chevrolet)
- Backup Lamp Bulb Replacement (GMC)
- Rear License Plate Lamp Replacement (Silverado)
- Rear License Plate Lamp Replacement (VF7)
- Rear License Plate Lamp Bulb Replacement
- Tail Lamp Replacement (Chevrolet)
- Tail Lamp Replacement (GMC)
- Tail Lamp Bulb Replacement (Chevrolet)
- Tail Lamp Bulb Replacement (GMC)
- Description and Operation
RENDER: 1.0x
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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.