UB80F (AUTOMATIC TRANSMISSION / TRANSAXLE): OIL COOLER: REMOVAL; 2024 - 2025 MY RAV4 [10/2023

Last Modified: 05-08-2025	6.11:8.1.0	Doc ID: RM100000002FPVL
Model Year Start: 2024	Model: RAV4	Prod Date Range: [10/2023 - ]
Title: UB80F (AUTOMATIC TRANSMISSION / TRANSAXLE): OIL COOLER: REMOVAL; 2024 - 2025 MY RAV4 [10/2023 - ]

REMOVAL

CAUTION / NOTICE / HINT

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

Necessary Procedure After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
1: When performing learning using the Techstream. Click here 2: w/o Power Back Door System
Battery terminal is disconnected/reconnected	Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes)	Stop and start system
	Perform steering sensor zero point calibration	Lane control system
		Parking support brake system (for Gasoline model)*1
		Pre-collision system
	Reset back door close position	Power back door system
	Back door lock initialization*2	Power door lock control system
ECM	Perform Vehicle Identification Number (VIN) or frame number registration	DTC P063051 is output
	Code registration	Engine start function	w/ Smart Key System: w/o Smart Key System:
	If transaxle compensation code read from ECM Perform reset memory Transfer transaxle compensation code Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency	for Initialization: for Registration:
	If transaxle compensation code not read from ECM Perform reset memory Transfer transaxle compensation code Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency	for Initialization: for Registration:

NOTICE:

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

Waiting Time before Disconnecting Cable from Negative (-) Battery Terminal

System Name	See Procedure
Vehicle enrolled in Toyota Audio Multimedia system or safety connect system	6 minutes
Vehicle not enrolled in Toyota Audio Multimedia system and safety connect system	1 minute

PROCEDURE

1. REMOVE BATTERY

Click here

2. REMOVE ECM

Click here

3. REMOVE BATTERY CLAMP SUB-ASSEMBLY

Click here

4. REMOVE FRONT FENDER FRONT SPLASH SHIELD LH

Click here

5. REMOVE FRONT FENDER FRONT SPLASH SHIELD RH

Click here

6. REMOVE NO. 1 ENGINE UNDER COVER

Click here

7. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY

Click here

8. REMOVE FRONT FENDER APRON SEAL LH

Click here

9. DRAIN ENGINE COOLANT

Click here

10. DRAIN AUTOMATIC TRANSAXLE FLUID

Click here

11. DISCONNECT OUTLET NO. 1 OIL COOLER HOSE

(a) Slide the clip and disconnect the outlet No. 1 oil cooler hose from the oil cooler union sub-assembly.

HINT:

Use a container to catch any automatic transaxle fluid which flows out of the outlet No. 1 oil cooler hose and oil cooler union sub-assembly.

12. DISCONNECT INLET NO. 1 OIL COOLER HOSE

(a) Slide the clip and disconnect the inlet No. 1 oil cooler hose from the No. 1 oil cooler outlet tube sub-assembly.

HINT:

Use a container to catch any automatic transaxle fluid which flows out of the inlet No. 1 oil cooler hose and No. 1 oil cooler outlet tube sub-assembly.

13. REMOVE NO. 1 OIL COOLER TUBE SUB-ASSEMBLY WITHOUT HOSE

(a) Remove the 2 bolts to disconnect the No. 1 oil cooler tube sub-assembly without hose from the automatic transaxle case sub-assembly.

(b) Slide the clip and disconnect the inlet No. 2 oil cooler hose from the transmission oil cooler.

HINT:

Use a container to catch any automatic transaxle fluid which flows out of the inlet No. 2 oil cooler hose and transmission oil cooler.

(c) Slide the clip and disconnect the outlet No. 2 oil cooler hose to remove the No. 1 oil cooler tube sub-assembly without hose from the transmission oil cooler.

HINT:

Use a container to catch any automatic transaxle fluid which flows out of the outlet No. 2 oil cooler hose and transmission oil cooler.

(d) Slide the 4 clips and remove the inlet No. 1 oil cooler hose, inlet No. 2 oil cooler hose, outlet No. 1 oil cooler hose and outlet No. 2 oil cooler hose from the No. 1 oil cooler tube sub-assembly without hose.

*1	No. 1 Oil Cooler Tube Sub-assembly without Hose
*2	Inlet No. 1 Oil Cooler Hose
*3	Inlet No. 2 Oil Cooler Hose
*4	Outlet No. 1 Oil Cooler Hose
*5	Outlet No. 2 Oil Cooler Hose

14. DISCONNECT NO. 1 WATER BY-PASS HOSE

(a) Disengage the 3 clamps to remove the transmission breather clamp.

(b) Slide the clip and disconnect the No. 1 water by-pass hose from the transmission oil cooler.

HINT:

Use a container to catch any coolant which flows out of the No. 1 water by-pass hose and transmission oil cooler.

15. DISCONNECT WATER BY-PASS HOSE ASSEMBLY

(a) Slide the clip and disconnect the water by-pass hose assembly from the transmission oil cooler.

HINT:

Use a container to catch any coolant which flows out of the water by-pass hose assembly and transmission oil cooler.

16. REMOVE TRANSMISSION OIL COOLER

(a) Remove the 3 bolts and the transmission oil cooler from the automatic transaxle case sub-assembly.