LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Cadillac
>>
2009
>>
XLR Base
>>
Repair and Diagnosis
>>
Body & Frame
>>
Ignition Switch/Steering Lock
>>
Immobilizer System
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Immobilizer System
Expand All (for easy ctrl-f)
Collapse All
Schematic and Routing Diagrams
Immobilizer Schematics
Diagnostic Information and Procedures
Diagnostic Code Index
Diagnostic Starting Point - Immobilizer
DTC P1630
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 Procedures
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
Repair Procedures
DTC P1632
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 Procedures
Repair Instructions
LED Indicator Replacement - Vehicle Security System
Removal Procedure
Installation Procedure
Immobilizer System Component Programming
10-Minute Immobilizer Relearn
30-Minute Immobilizer Relearn
Description and Operation
Immobilizer Description and Operation
Immobilizer System
Start Button
Keyless Entry Transmitters
Keyless Entry Antenna - Backup
Body Control Module (BCM)
Remote Control Door Lock Receiver (RCDLR)
Security Indicator
Engine Control Module (ECM)