Toyota Avalon (XX50): Brake Pedal Stroke Sensor(for Hv Model)

Components

COMPONENTS

ILLUSTRATION

ILLUSTRATION

*1	BRAKE PEDAL STROKE SENSOR ASSEMBLY	*2	BRAKE PEDAL SUPPORT ASSEMBLY
	N*m (kgf*cm, ft.*lbf): Specified torque	-	-

Installation

INSTALLATION

PROCEDURE

1. INSPECT AND ADJUST BRAKE PEDAL HEIGHT

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2. INSTALL BRAKE PEDAL STROKE SENSOR ASSEMBLY

NOTICE:

• Do not drop the brake pedal stroke sensor assembly.
• If the brake pedal stroke sensor assembly has been dropped, replace the brake pedal stroke sensor assembly with a new one.

(a) When installing a new brake pedal stroke sensor assembly:

NOTICE:

Do not break the brake pedal stroke sensor assembly lever set pin before installing the brake pedal stroke sensor assembly with the 2 nuts.

(1) Install a new brake pedal stroke sensor assembly to the brake pedal support assembly with the 2 nuts. Torque: 8.5 N·m {87 kgf·cm, 75 in·lbf} NOTICE: Engage the brake pedal stroke sensor assembly lever with the brake pedal groove. Check that there is no foreign matter attached to the contact surface of the brake pedal stroke sensor assembly. Check that the tip of the brake pedal stroke sensor assembly lever is protruding from the brake pedal groove.

*a Brake Pedal Stroke Sensor Assembly Lever *b Brake Pedal Groove *c Brake Pedal Stroke Sensor Assembly Lever Set Pin

(2) Connect the connector.

(3) Firmly depress the brake pedal to break the brake pedal stroke sensor assembly lever set pin.

(4) Remove the broken lever set pin.

(b) When reusing the brake pedal stroke sensor assembly:

(1) Install the brake pedal stroke sensor assembly to the brake pedal support assembly and temporarily tighten the 2 nuts. NOTICE: Engage the brake pedal stroke sensor assembly lever with the brake pedal groove. Check that there is no foreign matter attached to the contact surface of the brake pedal stroke sensor assembly. Check that the tip of the brake pedal stroke sensor assembly lever is protruding from the brake pedal groove.

*a Brake Pedal Stroke Sensor Assembly Lever *b Brake Pedal Groove

(2) Connect the connector.

3. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL

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4. ADJUST BRAKE PEDAL STROKE SENSOR ASSEMBLY

NOTICE:

When the brake pedal stroke sensor assembly is being reused, perform the following procedure to adjust it.

(a) Connect the Techstream to the DLC3 with the power switch off.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List / Stroke Sensor.

(e) Read the stroke sensor value in the Data List, and turn the brake pedal stroke sensor assembly slowly to the right or left to adjust the output voltage so that it is within the following range. Standard Voltage (without the brake pedal depressed): 0.8 to 1.2 V

(f) Tighten the 2 nuts.

Torque:

8.5 N·m {87 kgf·cm, 75 in·lbf}

NOTICE:

Do not depress the brake pedal after turning the power switch on (IG).

(g) Turn the Techstream off and turn the power switch off.

(h) Disconnect the Techstream from the DLC3.

5. INSTALL NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

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6. PERFORM INITIALIZATION AND CALIBRATION

Perform linear solenoid valve offset learning, ABS holding solenoid valve learning, brake pedal stroke sensor assembly zero point calibration and system information memorization:

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7. CHECK AND CLEAR DTC

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Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during brake pedal stroke sensor assembly removal/installation are shown below.

NOTICE:

While the auxiliary battery is connected, even if the power switch is off, the brake control system activates when the brake pedal is depressed or any door courtesy switch turns on. Therefore, when servicing the brake system components, do not operate the brake pedal or open/close the doors while the auxiliary battery is connected.

PROCEDURE

1. PRECAUTION

NOTICE:

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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2. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

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3. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

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4. REMOVE BRAKE PEDAL STROKE SENSOR ASSEMBLY

(a) Disconnect the connector from the brake pedal stroke sensor assembly.

(b) Remove the 2 nuts and brake pedal stroke sensor assembly from the brake pedal support assembly.

NOTICE:

• Do not drop the brake pedal stroke sensor assembly.
• If the brake pedal stroke sensor assembly has been dropped, replace the brake pedal stroke sensor assembly with a new one.