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2021
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Blazer Premier, 3.6L Eng VIN S, 4WD
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Immobilizer System
Immobilizer System
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Specifications
Fastener Specifications
Schematic Wiring Diagrams
Immobilizer Wiring Schematics
Immobilizer
Diagnostic Information and Procedures
DTC B2955
Diagnostic Instructions
DTC Descriptor
Diagnostic Fault Information
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Diagnostic Aids
Reference Information
Circuit/System Testing
Repair Instructions
DTC B302A
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Diagnostic Aids
Reference Information
Circuit/System Verification
DTC B3031
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
Repair Instructions
DTC B3055
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Diagnostic Aids
Reference Information
Circuit/System Verification
Repair Instructions
DTC B305C
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
DTC B3060
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
DTC B389A
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Diagnostic Aids
Reference Information
Circuit/System Verification
Repair Instructions
DTC B3902
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
Repair Instructions
DTC B3924-B3928
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
Repair Instructions
DTC B3935
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
Repair Instructions
DTC B3976
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
DTC B3978-B3982
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
Repair Instructions
DTC B3984
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
Repair Instructions
DTC P0513
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Diagnostic Aids
Reference Information
Circuit/System Verification
DTC P0633
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
DTC P162B
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
Repair Instructions
DTC P1631
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
DTC P1649
Diagnostic Instructions
DTC Descriptor
Circuit/System Description
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the DTC
Reference Information
Circuit/System Verification
Repair Instructions
Symptoms - Immobilizer
Notes
Visual/Physical Inspection
Intermittent
Symptom List
OnStar Stolen Vehicle Slowdown Active
Diagnostic Instructions
Circuit/System Description
Reference Information
Circuit/System Verification
Repair Instructions
Theft Deterrent Module Replacement
Immobilizer System Component Programming
Notes
Unable to Complete Programming
Key with Integrated Transmitter Programming
Programming Transmitters
Replacing Transmitters (Without SPS)
Replacing Transmitters (With SPS)
Adding Transmitters (Without SPS)
Adding Transmitters (With SPS)
Description and Operation
Immobilizer Description and Operation
Notes
Body Control Module (BCM)
Engine Control Module (ECM)
Immobilizer Control Module
Steering Column Lock Control Module
Ignition Key
Environment Identifier
Security Indicator
Remote Vehicle Speed Limiting Description and Operation