Immobilizer System
- Schematic Wiring Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- DTC B2955: Security Sensor Data Circuit
- DTC B302A: Mobile Telephone Communications Interface Requested Immobilization
- DTC B3031: Security Controller In Learn Mode
- DTC B3055: Security Controller In Learn Mode
- DTC B305C: Immobilizer Transponder of Wrong Type Programmed
- DTC B3060: Unprogrammed Transponder Identification Code Received
- DTC B389A: Environment Identification
- DTC B3902: Incorrect Immobilizer Identifier Received
- DTC B3935: Transponder Authentication
- DTC B3976: Transponder Authentication
- DTC B3984: Device 1 Environment Identifier Not Programmable
- DTC P0513: Immobilizer Key Incorrect
- DTC P0633: Immobilizer Key Not Programmed
- DTC P162B: Remote Vehicle Speed Limiting Signal Message Counter Incorrect
- DTC P1630: Immobilizer Learn Mode Active
- DTC P1631: Immobilizer Fuel Enable Signal Not Correct
- DTC P1649: Immobilizer Security Code Not Programmed
- DTC P1677: Immobilizer System Disabled
- Symptoms - Immobilizer
- OnStar Stolen Vehicle Slowdown Active
- Repair Instructions
- Description and Operation