Immobilizer System
- Specifications
- Schematic Wiring Diagrams
- Diagnostic Information and Procedures
- DTC B2955: Security Sensor Data Circuit (with BTM)
- DTC B2955: Security Sensor Data Circuit (without BTM)
- DTC B302A: Mobile Telephone Communications Interface Requested Immobilization
- DTC B3031: Security Controller In Learn Mode (without BTM)
- DTC B3031: Security Controller In Learn Mode (with BTM)
- DTC B3055: No Transponder Modulation or No Transponder
- DTC B305C: Immobilizer Transponder of Wrong Type Programmed
- DTC B389A: Environment Identification
- DTC B3902: Incorrect Immobilizer Identifier Received
- DTC B3924-B3928: Incorrect Environmental Identifier Received
- DTC B3935: Transponder Authentication
- DTC B3976: Unconfigured Transponder
- DTC B3978-B3982: Incorrect Environmental Identifier Received
- 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 P1631: Immobilizer Fuel Enable Signal Not Correct
- DTC P1649: Immobilizer Security Code Not Programmed
- Symptoms - Immobilizer
- OnStar Stolen Vehicle Slowdown Active
- Repair Instructions
- Theft Deterrent Module Replacement (Chevrolet/GMC, With BTM)
- Theft Deterrent Module Replacement (Cadillac, With BTM)
- Theft Deterrent Module Replacement (Without BTM)
- Immobilizer System Component Programming (without BTM)
- Immobilizer System Component Programming (with BTM)
- Programming Additional Keys (without BTM)
- Replacing Keys (without BTM)
- Description and Operation