2012 Lexus RX 350 FWDFACTORY OEM SERVICE PROCEDURE

Engine Coolant Temperature Sensor: Removal: Removal

  1. PRECAUTION (w/ Navigation System for HDD) 
    NOTE:

    After the engine switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal.

  2. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY 
    1. Remove the windshield wiper motor and link assembly. Refer to REMOVAL .
  3. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY  . Refer to REMOVAL - Step 8
  4. REMOVE V-BANK COVER SUB-ASSEMBLY  . Refer to REMOVAL - Step 32
  5. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    WARNING:

    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. Refer to PRECAUTION .

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:

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

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