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Home >> Toyota >> 2025 >> Prius Plug-In Hybrid SE >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Hybrid Transaxle System (Pa10/PB10/PB12) - Service Information >> PB10/PB12 Oil Cooler >> Removal [03/2023 - ] >> Procedure

Removal [03/2023 - ]: Procedure

  1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 2

  2. DRAIN COOLANT (for Inverter) 

    Refer to PROCEDURE - Step 1

  3. DISCONNECT NO. 2 VENTILATION HOSE 

    Refer to PROCEDURE - Step 2

  4. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE 

    Refer to PROCEDURE - Step 2

  5. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 2

  6. REMOVE AIR CLEANER CASE SUB-ASSEMBLY 
  7. DISCONNECT ENGINE WIRE 
    1. GTY1158746Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. DISCONNECT OUTLET NO. 1 INVERTER COOLING HOSE 
    NOTE:

    Put pieces of cloth into the pipe and disconnected hose or cover the pipe and hose with plastic bags to prevent entry of foreign matter.

    1. GTY1158730Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. DISCONNECT OUTLET NO. 2 INVERTER COOLING HOSE 
    NOTE:

    Put pieces of cloth into the pipe and disconnected hose or cover the pipe and hose with plastic bags to prevent entry of foreign matter.

    1. GTY1158727Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE MOTOR COOLING COOLER 
    1. GTY1158728Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002