2012 Lexus LS 600hLFACTORY OEM SERVICE PROCEDURE

Lin Communication System: Precaution: Precaution

WARNING: This page is about a different car, the 2012 Lexus CT 200h. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following systems after the cable is reconnected.

System Name See Procedure
Parking Assist Monitor System Refer to INITIALIZATION
Power Door Lock Control System
  1. PRECAUTIONS WHEN USING TECHSTREAMΒ 
    1. When using the Techstream to troubleshoot with the power switch off:

      Connect the Techstream to the DLC3, and turn the courtesy light switch on and off at 1.5-second intervals until communication between the Techstream and vehicle begins.

    2. After all DTCs are cleared, check if the trouble occurs again 6 seconds after the power switch is turned on (IG).
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.