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.
2002 Chevrolet Venture PlusFACTORY OEM SERVICE PROCEDURE
Section 1331 (Cellular Communication System)
WARNING: This page is about a different car, the 2002 Cadillac Seville. 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 - Cellular Communication
- Diagnostic System Check - Cellular Communication
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B2455: Cellular Microphone
- DTC B2470: No Cellular Signal
- DTC B2476: Keypad Signal Circuit Voltage
- DTC B2482: Button Depressed Or Stuck For More Than 15 Seconds
- DTC B2483 or B2484: No Navigation Signal
- Symptoms - Cellular Communication
- Cellular Telephone Inoperative
- Cellular Telephone - Hands Free Operation Inoperative
- Cellular Telephone - Voice Inoperative During Hands-Free (w/o U45)
- Cellular Telephone - Voice Inoperative During Hands-Free (w/U45)
- Cellular Telephone - Audio Inoperative During Hands-Free
- Cellular Telephone - Noisy Audio During Hands-Free
- Radio Does Not Connect to Internet Service Provider (U45)
- OnStar One or More Buttons Inoperative
- Unable to Contact OnStar Call Center
- Microphone Inoperative - Caller Cannot Be Heard
- Voice Recognition Inoperative
- OnStar Button LED Inoperative
- No (or Noisy) OnStar Audio
- Cellular Telephone Setup (w/o U45)
- Cellular Telephone Module Setup for CommuniportPC (U45) Voice Recognition
- Repair Instructions
- Cellular Telephone Docking Station Replacement
- Cellular Telephone Module Replacement (w/UV8)
- Coaxial Cable Replacement - Cellular Telephone (UE1)
- Antenna Assembly Replacement (UV8)
- Coupling Replacement - Antenna Inner
- Coupling Replacement - Antenna Outer
- Navigation Antenna Replacement
- Communication Interface Module Replacement
- Description and Operation
- Cellular Telephone Description and Operation
- Notes
- Cellular Telephone Handset
- Hands Free Operation
- Cellular Microphone
- Cellular Telephone Module
- Cellular Telephone Antenna
- Cellular Telephone Circuit Description
- Basic Phone Operations
- Message Display
- Keypad Buttons
- Steering Wheel Controls
- Feature Descriptions
- Placing a Call Through the Handset Keypad
- Placing Calls Using the Steering Wheel Controls (SWC)
- Placing Calls Using Voice Recognition
- Cellular Telephone - Driver Information Center Messages
- Received Signal Strength Indicator
- Phone Alphanumeric Display
- Phone - Call
- Phone Call Timer
- Phone Digit Dialing
- Phone Incoming Caller ID
- Phone - Locked
- Phone - No Handset
- Phone - No Service
- Phone - Not Present
- Phone - Off
- Phone - On
- Phone - Pause
- Phone - Roam A
- Phone - Roam B
- Phone Volume
- OnStar Description and Operation
- Cellular Telephone Description and Operation
Factory Service Tools
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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.
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