OIL PUMP REMOVAL

CAUTION / NOTICE / HINT

CAUTION:

Do not turn the power switch on (READY) until the oil pump assembly with motor installation is completed.

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during oil pump assembly with motor removal/installation are shown below.

Note

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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Necessary Procedure After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Auxiliary battery terminal is disconnected/reconnected Memorize steering angle neutral point LKA/LDA system

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Pre-collision system
Parking assist monitor system

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Steering sensor zero point calibration Variable gear ratio steering system

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Note

After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) auxiliary battery terminal.

Waiting Time before Disconnecting Cable from Negative (-) Auxiliary Battery Terminal
System Name See Procedure
Vehicle enrolled in Lexus Enform system or safety connect system 6 minutes
Vehicle not enrolled in Lexus Enform system and safety connect system 1 minute

PROCEDURE


  1. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

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  2. REMOVE V-BANK COVER SUB-ASSEMBLY

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  3. REMOVE RADIATOR SUPPORT TO FRAME SEAL RH

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  4. REMOVE LOWER RADIATOR AIR DEFLECTOR

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  5. REMOVE RADIATOR SUPPORT TO CROSS MEMBER BRACE SUB-ASSEMBLY RH

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  6. REMOVE NO. 1 AIR CLEANER INLET

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  7. REMOVE AIR CLEANER ASSEMBLY

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  8. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY

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  9. DRAIN TRANSMISSION FLUID

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  10. REMOVE NO. 1 EXHAUST PIPE SUPPORT BRACKET SUB-ASSEMBLY


    1. B004CKV

      Remove the 2 bolts and 2 nuts, disconnect the No. 1 exhaust pipe support bracket sub-assembly from the exhaust manifold assembly LH and exhaust manifold assembly RH.

    2. Remove the 2 bolts and No. 1 exhaust pipe support bracket sub-assembly.

  11. REMOVE TRANSMISSION OIL PUMP INSULATOR


    1. B004B30

      Remove the 3 bolts and transmission oil pump insulator.

  12. REMOVE TRANSMISSION OIL PUMP INSULATOR BRACKET


    1. B004AQ2

      Remove the bolt and transmission oil pump insulator bracket.

  13. DISCONNECT CONNECTOR

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  14. DISCONNECT WIRE HARNESS


    1. Disconnect the oil pump thermistor connector.

      B004AT5

    2. Disconnect the 9 wire harness clamps.

  15. REMOVE OIL PUMP ASSEMBLY WITH MOTOR


    1. B004APN

      Disconnect the transmission breather hose from the oil pump assembly with motor.

    2. Remove the 4 bolts, gasket and oil pump assembly with motor from the hybrid vehicle transmission assembly.