Toyota Yaris: Gf1a (transfer / 4wd / Awd) / 4wd Control Ecu
Components
COMPONENTS
ILLUSTRATION
| *1 | DECK TRIM SIDE PANEL ASSEMBLY RH | *2 | 4WD ECU ASSEMBLY |
 | N*m (kgf*cm, ft.*lbf): Specified torque | - | - |
Removal
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 the 4WD ECU removal/installation are shown below.
Necessary Procedure After Parts Removed/Installed/Replaced| Replacement Part or Procedure | Necessary Procedure | Effect/Inoperative when not Performed | Link |
|---|---|---|---|
| 4WD ECU assembly |
| Active torque split AWD system |
|
HINT:
When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.
-
Learning completes when vehicle is driven
Effect/Inoperative Function When Necessary Procedures are not Performed
Necessary Procedures
Link
Lane tracing assist system
Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 second or more.
Pre-collision system
Stop and start system
Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes)
-
Learning completes when vehicle is operated normally
Effect/Inoperative Function When Necessary Procedures are not Performed
Necessary Procedures
Link
Power door lock control system
- Back door opener
Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.
Air conditioning system
After the ignition switch is turned to ON, the servo motor standard position is recognized.
-
PROCEDURE
1. REMOVE DECK TRIM SIDE PANEL ASSEMBLY RH
Click here
2. REMOVE 4WD ECU ASSEMBLY
| (a) Disconnect the connector. |
|
(b) Remove the bolt and 4WD ECU assembly.
Installation
INSTALLATION
PROCEDURE
1. INSTALL 4WD ECU ASSEMBLY
(a) Install the 4WD ECU assembly with the bolt.
Torque:
10 N·m {102 kgf·cm, 7 ft·lbf}
(b) Connect the connector.
2. INSTALL DECK TRIM SIDE PANEL ASSEMBLY RH
Click here
3. PERFORM INITIALIZATION
Click here
4wd Control Switch
ComponentsCOMPONENTS ILLUSTRATION
*1 CONSOLE BOX ASSEMBLY *2 4WD CONTROL SWITCH (NO. 2 COMBINATION SWITCH ASSEMBLY) RemovalREMOVAL PROCEDURE 1...
Other information:
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Reassembly
REASSEMBLY PROCEDURE 1. INSTALL NO. 2 STEERING RACK BOOT (a) Apply lithium soap base glycol grease to the inside of the small opening of a new No. 2 steering rack boot. Lithium Soap Base Glycol Grease (b) Install the No. 2 steering rack boot to the groove on the rack housing...
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Disassembly
DISASSEMBLY CAUTION / NOTICE / HINT NOTICE: Do not disconnect the tube shown in the illustration when disassembling the fuel suction tube with pump and gauge assembly. Doing so will cause reassembly of the fuel suction tube with pump and gauge assembly to be impossible as the tube is pressed into the fuel suction plate sub-assembly...
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Turning the Engine Off
Stop the vehicle completely. Manual transaxle: Shift into neutral and set the parking brake.Automatic transaxle: Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition position is off.