Immobilizer for GMC Truck Sierra - 4WD 2008

All Description and Operation

• Immobilizer Description and Operation

Cleaning, Inspection, and Adjustment

• Adding Keys
• Immobilizer System Component Programming
• Replacing Keys

Diagnostic Procedures

• Diagnostic Starting Point - Immobilizer
• Hood Ajar Indicator/Message Malfunction
• Symptoms - Immobilizer

Diagnostic Trouble Codes

• DTC B3006
• DTC B302A
• DTC B3031
• DTC B3055
• DTC B3060
• DTC B3935
• DTC B3976
• DTC P0513
• DTC P0633
• DTC P1629
• DTC P1631
• DTC P1632

Electrical/Electronic Schematic Diagrams

• Immobilizer Schematics

Removal, Installation, and Replacement

• Theft Deterrent Module Replacement