BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): UTILITY; 2022 - 2024 MY RAV4 RAV4 HV [12/2021

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM10000000214OG
Model Year Start: 2022	Model: RAV4	Prod Date Range: [12/2021 - ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): UTILITY; 2022 - 2024 MY RAV4 RAV4 HV [12/2021 - ]

UTILITY

DESCRIPTION

(a) If any of the parts listed in the following table are replaced or adjusted, it is necessary to perform the specified operation.

NOTICE:

Learning cannot be performed again until the values stored during the previous learning (linear solenoid valve offset, brake pedal stroke sensor assembly zero point, system information, and yaw rate and acceleration sensor zero point) have been cleared. After replacing parts, clear the previous values before performing learning.

Necessary Operations after Replacement or Adjustment

Parts to be Replaced / Operation	Necessary Operation
*: Even when not replacing the part, it is necessary to perform the specified necessary procedures after installation.
No. 1 skid control ECU (brake booster with master cylinder assembly) No. 2 skid control ECU (brake actuator assembly)	Bleed air. Perform "Reset Memory". Perform "Calibration".
Brake pedal stroke sensor assembly* Brake pedal* Yaw rate and acceleration sensor (airbag ECU assembly)*	Perform "Reset Memory". Perform "Calibration".
Brake pedal stroke sensor assembly adjustment Wheel alignment adjustment	Perform "Reset Memory". Perform "Calibration".

UTILITY ITEMS

Utility Items	Main Purpose	Link
*: Electronically Controlled Brake System
All Readiness	Confirm if DTC judgment has been completed.	Refer to utility
Calibration	Enter Dealer Mode (Calibration) and perform linear solenoid valve offset learning, brake pedal stroke sensor assembly zero point calibration, system information memorization, and yaw rate and acceleration sensor zero point calibration.	Refer to utility
Signal Check	Enter Dealer Mode (Signal Check) and perform a signal inspection of the electronically controlled brake system.
Vehicle Control History (RoB)	View vehicle control history.
ECB* Utility - Motor Deactivate	Prohibit operation of the pump motor in the brake booster with accumulator pump assembly.	-
Reset Memory	Clear the following values: Linear solenoid valve offset Brake pedal stroke sensor assembly zero point System information Yaw rate and acceleration sensor zero point	Refer to utility

CALIBRATION

NOTICE:

When replacing the brake pedal stroke sensor assembly, brake pedal, No. 1 skid control ECU (brake booster with master cylinder assembly), No. 2 skid control ECU (brake actuator assembly) or yaw rate and acceleration sensor (airbag ECU assembly), perform "Calibration".
When "Bleeding" is performed after replacing the No. 1 skid control ECU (brake booster with master cylinder assembly) or No. 2 skid control ECU (brake actuator assembly), linear solenoid valve offset learning, brake pedal stroke sensor assembly zero point calibration, system information memorization, and yaw rate and acceleration sensor zero point calibration will be performed automatically.
When reinstalling the yaw rate and acceleration sensor (airbag ECU assembly), perform "Calibration" after performing "Reset Memory".
Make sure to perform the yaw rate and acceleration sensor zero point calibration on a flat surface (gradient of 0.2° or less) and ensure that the doors are not opened or closed and the vehicle is not moved or shaken. Also, to avoid vibration due to engine idle, do not turn the ignition switch to ON (READY).
When performing the yaw rate and acceleration sensor zero point calibration, make sure the tire pressure is as specified and the vehicle is in full contact with the ground (not completely or partially lifted up)

HINT:

When entering Dealer Mode (Calibration), the No. 2 skid control ECU (brake actuator assembly) communicates with the forward recognition camera to judge whether the vehicle is equipped with the pre-collision system. Therefore, do not exit Dealer Mode (Calibration) within 5 seconds of entering Dealer Mode (Calibration).

(a) To ensure that calibration completes correctly, confirm the following items before performing "Calibration":

(1) The auxiliary battery voltage is 11 to 15.5 V when the ignition switch is turned to ON (READY).

(2) The brake booster with master cylinder assembly and brake actuator assembly are not hot.

HINT:

If the temperature of the brake booster with master cylinder assembly or brake actuator assembly is excessively high, wait until it cools down before performing "Calibration".

(b) Clear the linear solenoid valve offset, brake pedal stroke sensor assembly zero point, system information, and yaw rate and acceleration sensor zero point.

(1) Turn the ignition switch off.

(2) Check that the steering wheel is centered.

(3) Check that the shift lever is in P.

(4) Connect the GTS to the DLC3.

(5) Turn the ignition switch to ON.

(6) Turn the GTS on.

(7) Using the GTS, clear the linear solenoid valve offset, brake pedal stroke sensor assembly zero point, system information, and yaw rate and acceleration sensor zero point.

Chassis > Brake/EPB > Utility

Tester Display
Reset Memory

NOTICE:

When performing "Reset Memory", each warning light or indicator light illuminates or flashes, and a DTC indicating that learning is incomplete and/or vehicle control history is stored.

(8) Turn the ignition switch off.

NOTICE:

If the ignition switch is turned to ON for more than 15 seconds with the shift lever in P after the zero point of the yaw rate and acceleration sensor has been cleared, only the zero point of the yaw rate sensor will be stored. If the vehicle is driven under these conditions, the No. 2 skid control ECU (brake actuator assembly) will store the zero point calibration for the acceleration sensor as not being completed. The No. 2 skid control ECU (brake actuator assembly) will then also indicate this as a malfunction of the VSC system using the indicator light.

(c) Perform linear solenoid valve offset learning, brake pedal stroke sensor assembly zero point calibration, system information memorization, and yaw rate and acceleration sensor zero point calibration.

NOTICE:

This procedure can be performed only once per trip. For that reason, if it is necessary to perform learning again, turn the ignition switch off for 4 minutes or more before turning the ignition switch to ON again.

HINT:

When Dealer Mode (Calibration) is entered, linear solenoid valve offset learning, brake pedal stroke sensor assembly zero point calibration, system information memorization, and yaw rate and acceleration sensor zero point calibration will be performed automatically.
If linear solenoid valve offset learning has not been performed, DTC C134500 or C134551 is stored.
If brake pedal stroke sensor assembly zero point calibration has not been performed, DTC C05C000, C05C051, C05C100 or C05C151 is stored.
If system information memorization has not been performed, DTC C124A00, C124A05 or C136F00 is stored.
If yaw rate sensor zero point calibration has not been performed, DTC C121054 or X204C is stored.
If acceleration sensor zero point calibration has not been performed, DTC C051D00 or C051D54 is stored.

(1) Turn the ignition switch off.

(2) Check that the steering wheel is centered.

(3) Check that the shift lever is in P.

(4) Connect the GTS to the DLC3.

(5) Turn the ignition switch to ON.

(6) Check that the parking brake is released.

NOTICE:

If the parking brake is not released, linear solenoid valve offset learning cannot be performed.
If the parking brake is engaged during linear solenoid valve offset learning, learning will be suspended.
In this case, learning will resume when the parking brake is released.
After replacing the brake actuator assembly, the parking brake indicator light (red) blinks when the ignition switch is turned to ON for the first time. To turn off the parking brake indicator light (red) after replacing the brake actuator assembly, operate the electric parking brake switch (integration control and panel assembly) to the lock side then to the release side.

(7) Turn the GTS on.

(8) Switch the skid control ECU to Dealer Mode (Calibration) using the GTS.

Chassis > Brake/EPB > Utility

Tester Display
Calibration

(9) Wait for approximately with the vehicle stopped without depressing the brake pedal and confirm that the ABS warning light, brake system warning light (yellow indicator) and slip indicator light flash the Dealer Mode pattern (blinks at 0.25 second intervals).

NOTICE:

Do not depress the brake pedal when performing "Calibration".
If Dealer Mode is entered when the shift position is in a position other than P, DTC C051D00, C051D54 or C121054 is stored.

HINT:

An auxiliary battery voltage of 10 V or more is required during learning. If the auxiliary battery voltage drops below 10 V, learning may be canceled. The time required for learning changes depending on the auxiliary battery voltage.
If linear solenoid valve offset learning does not complete, DTCs C134500 or C134551 will be stored. In this case, perform learning again after clearing the DTCs and turning the ignition switch off.
After "Calibration" completes, the ABS warning light, brake system warning light (yellow indicator) and slip indicator light flash the Dealer Mode pattern (blinks at 0.25 second intervals).
After entering Dealer Mode (Calibration), maintain Dealer Mode (Calibration) condition for 5 seconds. If Dealer Mode (Calibration) is ended before 5 seconds elapse, enter Dealer Mode (Calibration) again, wait 5 seconds, and then check for DTCs again.

(10) Check that "complete" is displayed for Dealer Mode (Signal Check) Inspection Item "Learning of Stroke Sensor Zero Point".

(11) Turn the ignition switch off.

(12) Disconnect the GTS.

ALL READINESS

HINT:

With "All Readiness", you can check whether or not the DTC judgment has been completed by using the GTS.
You should check "All Readiness" after simulating malfunction symptoms or for validation after finishing repairs.

(a) Turn the ignition switch off.

(b) Connect the GTS to the DLC3.

(d) Turn the GTS on.

(e) Clear the DTCs even if no DTCs are stored.

Chassis > Brake Booster > Clear DTCs

Chassis > Brake/EPB > Clear DTCs

(f) Press the clear button.

(g) Turn the ignition switch off.

(h) Turn the ignition switch to ON (READY).

(i) Perform the DTC judgment driving pattern to run the DTC judgment.

Chassis > Brake Booster > Utility

Tester Display
All Readiness

Chassis > Brake/EPB > Utility

Tester Display
All Readiness

(j) Input the DTC to be confirmed.

(k) Check the DTC judgment result.

GTS Display	Description
Normal	DTC judgment completed System normal
Abnormal	DTC judgment completed System abnormal
Incomplete	DTC judgment not completed Perform the driving pattern
N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit Perform the driving pattern

If the judgment result shows Incomplete or N/A, perform the DTC confirmation driving pattern again.