Toyota Sienna Service Manual: Brake booster

Installation

1. INSTALL BRAKE MASTER CYLINDER (a) Install the brake master cylinder with the 2 nuts. Torque: 13 N*m (130 kgf*cm, 9 ft.*lbf) (b) Slide the clip and connect the brake master cylinder reserv ...

On-vehicle inspection

1. INSPECT BRAKE BOOSTER (a) Air tightness check. (1) Start the engine and stop it after 1 or 2 minutes. Depress the brake pedal several times slowly. HINT: If the pedal goes down farthes ...

Other materials:

Inspection
1. INSPECT VANE PUMP SHAFT AND BUSHING IN VANE PUMP FRONT HOUSING (a) Using a micrometer, measure the outer diameter [a] of the vane pump shaft with pulley. (b) Using vernier calipers, measure the inner diameter [b] of the vane pump front housing bushing. (c) Calculate the oil clearance ...

Brake Switch "B" Circuit High
DESCRIPTION The purpose of this circuit is to prevent the engine from stalling while driving in lock-up condition when brakes are suddenly applied. When the brake pedal is depressed, this switch sends a signals to the ECM. Then the ECM cancels the operation of the lock-up clutch while ...

Readiness monitor drive pattern
1. PURPOSE OF READINESS TESTS  The On-Board Diagnostic (OBD II) system is designed to monitor the performance of emissionrelated components, and indicate any detected abnormalities with DTCs (Diagnostic Trouble Codes). Since various components need to be monitored in different d ...