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Multiplex Communication System: Removal & Installation Lexus IS I

Communication Devices 2 illustrations

REMOVAL & INSTALLATION

WARNINGVehicles are equipped with air bag supplemental restraint system. Before attempting any repairs involving steering column, instrument panel or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in AIR BAG RESTRAINT SYSTEMS article.
CAUTIONWhen battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
  1. Remove the left kick panel by removing a clip.
  2. Disconnect the body ECU from the driver side junction block. (Scheme 17)
  3. For installation, reverse the removal procedure.

Scheme 17

Scheme 17

For engine control module removal and installation procedure (Scheme 18)

Scheme 18

Scheme 18: Removal & Installation