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 307 (ENTERTAINMENT SYSTEM)
2006 Chevrolet Suburban C2500, 6.0 U
Section 307 (Entertainment System)
2006 Chevrolet Suburban C2500, 6.0 USECTION Section 307 (Entertainment System)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. 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 - Entertainment
- Diagnostic System Check - Entertainment System
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B1025, B1035, B1045, or B1055
- DTC B1235
- DTC B1259
- DTC B1271
- DTC B2815
- Symptoms - Entertainment
- Audio System Troubleshooting Hints
- Radio Poor Reception
- Digital Radio Poor or No Reception
- Audio Distortion - One or More Speakers
- Remote Playback Device Inoperative
- Remote Playback Device - Audio Noise
- Remote Playback Device Left or Right Channel Inoperative
- Radio Displays LOC, LOCKED, or CODE
- Radio Displays CLN or CLEAN (W/O UM8)
- Radio Displays CLN or CLEAN (W/UM8)
- Radio Displays CAL or CAL ERR (W/O UM8)
- Radio Displays CAL or CAL ERR (W/UM8)
- Tape Player Weak, Slow, or Garbled Output
- Steering Wheel Controls Inoperative
- Reduced Volume - One or More Speakers (W/O UM8)
- Reduced Volume - One or More Speakers (W/UM8)
- Speakers Inoperative - One or More
- Video Entertainment System Troubleshooting Hints
- Video Entertainment System Inoperative
- Radio Audio Inoperative at Rear Seat Audio (RSA) Control
- Audio Amplifier Setup
- Radio Setup
- Digital Radio Receiver Setup
- Speaker Replacement Reference
- Repair Instructions
- Radio Replacement
- Receiver Replacement - Digital Radio
- Amplifier Replacement
- Audio Control Replacement - Rear Seat
- Remote CD Player Replacement
- Module Replacement - Radio Antenna Diversity
- Fixed Antenna Replacement
- Antenna Replacement - Digital Radio (Early)
- Antenna Extension Cable Replacement
- Radio Antenna Module Cable Replacement (From Radio to Module)
- Coaxial Cable Replacement - Digital Radio (Primary)
- Coaxial Cable Replacement - Digital Radio (Extension)
- Speaker Replacement - Front Floor Console (Subwoofer Speaker)
- Speaker Replacement - Front (Windshield Pillar Speaker)
- Speaker Replacement - Front Door
- Speaker Replacement - Front Side Door Upper
- Speaker Replacement - Rear Pillar (Utility)
- Speaker Replacement - Rear Door
- Speaker Grille Replacement - Front Door
- DVD Player Replacement
- Description and Operation
- Radio/Audio System Description and Operation
- Notes
- AM/FM Reception
- Diversity Antenna System
- Audio Amplifier
- Theft Deterrent
- Integral Multi Disc CD Changer (IMDX)
- Remote Playback Device
- Remote CD Changer (CDX)
- Radio Data System (RDS)
- RDS Basic Information
- Displaying Program Information
- Controlling the Radio
- Viewing and Selecting RDS Information for Display
- Using the RDS Traffic Feature
- Alternate Frequency (AF) Switching
- RDS Clock Time
- Radio Error Messages
- Voice Recorder
- Rear Seat Audio (RSA)
- XM Satellite Radio
- Digital Radio Receiver
- Video Entertainment System Description and Operation
- Radio/Audio System Description and Operation
- Special Tools and Equipment
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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.