Body and Accessories

All Component Locator

• Keyless Entry Components

All Description and Operation

• Keyless Entry System Circuit Description
• Keyless Entry System Description
• Keyless Entry System Operation

All Special Tools and Equipment

• Special Tools

Cleaning, Inspection, and Adjustment

• Transmitter Programming/Synchronization

Diagnostic Procedures

• Courtesy Lamps Inoperative with Transmitter
• Diagnostic Starting Point - Keyless Entry
• Diagnostic System Check - Remote Keyless Entry
• Keyless Entry System Does Not Change Customization Modes
• Keyless Entry System Inoperative
• Symptoms - Keyless Entry

Diagnostic Trouble Codes

• Diagnostic Trouble Code (DTC) List/Type
• DTC 41 Last Message Received Valid
• DTC 42 Last Message Received Invalid
• DTC 43 Last Message Received with Sumcheck Error
• DTC 44 Last Message Received with Encryption Error
• DTC 45 Receiver Processing in 20 Second Lockout

Electrical/Electronic Schematic Diagrams

• Keyless Entry Schematic Icons
• Keyless Entry Schematics

Other Specifications

• GM SPO Group Numbers

Removal, Installation, and Replacement

• Transmitter Battery Replacement