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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Theft Deterrent System - Service Information >> Certification Ecu >> Removal [10/2023 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed, installed or replaced during the certification ECU (smart key ECU assembly) removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED

Replacement Part or Procedures Necessary Procedures Effect/Inoperative Function When Necessary Procedures are not Performed Link
Disconnect cable from negative auxiliary battery terminal Operate the multiplex network master switch assembly (retractable outer mirror switch) to extend and retract the outer rear view mirror assembly Parking support brake system Refer to INITIALIZATION [10/2022 - ]
Initialize rear door sunshade system Rear door sunshade system Refer to INITIALIZATION [10/2017 - ]
Certification ECU (smart key ECU assembly) Perform code registration
  • Wireless door lock control system
  • Smart access system with push-button start
  • Hybrid control system cannot be started
  • Digital key system
w/ Front LiDAR Sensor:
Refer to REGISTRATION [10/2023 - ]
w/o Front LiDAR Sensor:
Refer to REGISTRATION [10/2023 - ]

HINT: