Ignition Switch & Immobilizer System

• Ignition Switch
  • General Description
    • Ignition Key Reminder Tone Alarm
    • Immobilizer System
      • Notes
      • Construction Diagram
    • Disposition When Replacing Immobilizer System Related Parts
  • Equipment Diagnosis
    • Ignition Switch Diagnosis
  • Introduction To Immobilizer System Diagnosis
  • Immobilizer System Diagnostic Troubleshooting Strategy
  • Immobilizer System Trouble Code Diagnosis
    • Retrieving and Erasing Immobilizer System Diagnostic Trouble Codes
  • Diagnostic Trouble Code Chart
  • Diagnostic Trouble Code Procedures
    • DTC 11: Transponder Communication System or Radio Interference of Encrypted Code
      • Notes
      • Circuit Operation
      • DTC Set Condition
      • Troubleshooting Hints
      • Diagnosis
    • DTC 12: Encrypted Codes are not the Same or not Registered
      • DTC Set Condition
      • Troubleshooting Hints
      • Diagnosis
  • Trouble Symptom Chart
  • Symptom Procedures
    • INSPECTION PROCEDURE 1: Communication with Scan Tool MB991502 is Impossible
      • Notes
      • Communication With Scan Tool MB991502 Is Impossible
      • Technical Description (Comment)
      • Troubleshooting Hints
      • Diagnosis
    • INSPECTION PROCEDURE 2: Registering the Ignition Key is Impossible
      • Technical Description (Comment)
      • Troubleshooting Hints
      • Diagnosis
    • INSPECTION PROCEDURE 3: Engine does not Start (Cranking but no Initial Combustion)
      • Technical Description (Comment)
      • Troubleshooting Hints
      • Diagnosis
    • INSPECTION PROCEDURE 4: The "SECURITY" Indicator Light does not Illuminate
      • Notes
      • Circuit Operation
      • Technical Description (Comment)
      • Troubleshooting Hints
      • Diagnosis
  • Data List Reference Table
  • Check At Immobilizer-Ecu
  • Special Tools
  • On-Vehicle Service
    • Immobilizer Encrypted Code Registration
      • Encrypted Code Registration Method
      • Points To Note During Operation
      • Key Id Register
        • Notes
        • Registration with scan tool MB991502
        • Registration of additional keys with the scan tool
        • Registration of additional keys without using the scan tool
    • Transponder Lock Check
  • Ignition Switch
    • Removal And Installation
    • Removal Service Point
      • << A >> Steering Lock Cylinder Removal
    • Installation Service Point
      • >> A << Immobilizer-Ecu Installation
    • Inspection
      • Ignition Switch Continuity Check
      • Key Reminder Switch And Ignition Key Ring Antenna Continuity Check