Toyota Avalon Service & Repair Manual: 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 brake booster assembly removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

*: When performing learning using the Techstream.

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Battery terminal is disconnected/reconnected

Perform steering sensor zero point calibration

Lane departure alert system (w/ Steering Control)

Pre-collision system

Intelligent Clearance Sonar System*

Lighting System (for Gasoline Model with Cornering Light)

Memorize steering angle neutral point

Parking assist monitor system

Panoramic View Monitor System

NOTICE:

Make sure to release vacuum from the brake booster assembly before removing the brake master cylinder sub-assembly from the brake booster assembly.

PROCEDURE

1. PRECAUTION

NOTICE:

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

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2. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY

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

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4. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY

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5. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY

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6. REMOVE AIR CLEANER ASSEMBLY WITH AIR CLEANER HOSE

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7. REMOVE BATTERY CLAMP SUB-ASSEMBLY

(a) Disengage the 5 clamps from the battery clamp sub-assembly.

(b) Remove the 3 bolts, nut and battery clamp sub-assembly.

8. DISCONNECT UNION TO CHECK VALVE HOSE

(a) Slide the clip and disconnect the union to check valve hose from the brake booster assembly.

9. LOOSEN LOCK NUT

(a) Loosen the lock nut of the brake master cylinder push rod clevis.

*1

Lock Nut

*2

Brake Master Cylinder Push Rod Clevis

10. REMOVE PUSH ROD PIN

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11. REMOVE BRAKE BOOSTER ASSEMBLY

(a) Disconnect the connector from the vacuum warning switch assembly.

(b) Remove the 4 nuts and push the brake booster assembly toward the engine compartment.

NOTICE:

Do not apply excessive force to the brake lines.

(c) Remove the brake master cylinder push rod clevis and lock nut from the brake booster assembly.

(d) Remove the brake booster assembly from the vehicle body.

NOTICE:

Do not apply excessive force to the brake lines.

12. REMOVE BRAKE BOOSTER GASKET

    Reassembly

    Brake Booster(for Hv Model)

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