Toyota Sienna Quiz
Brake control

Inspection

In this manual: Brake control
Introduction — 55Service specifications — 7Maintenance — 7Engine — 264U151e automatic transaxle — 108Transfer — 19Propeller shaft — 8Drive shaft — 14Differential — 16Axle — 18Suspension — 37Tire and wheel — 54Brake control — 141Parking brake — 16Steering Column — 11Power steering — 18Air conditioning — 106Supplemental restraint system — 146Seat belt — 22Theft deterrent — 14Engine immobiliser — 17Cruise control — 65Lighting — 61Wiper and washer — 13Door lock — 42Meter — 28Audio / visual — 94Navigation — 108Park assist / monitoring — 33Horn — 5Garage door opener — 42GR-FE Engine control system — 126Supplemental restraint system — 147Other system — 14Windshield / windowglass — 43Mirror — 23Instrument panel — 6Seat belt — 22Seat — 92Engine hood / door — 104Exterior — 39Interior — 5Sliding roof — 9Multiplex communication — 18Can communication — 23
~1min read

1. INSPECT BRAKE DRUM INSIDE DIAMETER

INSPECT BRAKE DRUM INSIDE DIAMETER

(a) Using a brake drum gauge or equivalent, measure the inside diameter of the drum.

Standard inside diameter: 254.0 mm (10.00 in.) Maximum inside diameter: 256.0 mm (10.08 in.)

2. INSPECT REAR DRUM BRAKE SHOE LINING THICKNESS

INSPECT REAR DRUM BRAKE SHOE LINING THICKNESS

(a) Using a ruler, measure the thickness of the shoe lining.

Standard thickness: 5.0 mm (0.197 in.) Minimum thickness: 1.0 mm (0.039 in.)

HINT: If the lining thickness is at the minimum thickness or less, or if there is severe, uneven wear, replace the brake shoe.

3. INSPECT BRAKE DRUM AND REAR DRUM BRAKE SHOE LINING FOR PROPER CONTACT

. INSPECT BRAKE DRUM AND REAR DRUM BRAKE SHOE LINING FOR PROPER CONTACT

(a) Apply chalk to the inside surface of the drum, then grind drum on the brake shoe lining to fit.

HINT: If the contact between the drum and the shoe lining is improper, repair it using a brake shoe grinder or replace the brake shoe assembly.

4. INSPECT BRAKE WHEEL CYLINDER

(a) Check the cylinder bore and piston for rust or scoring.

Test yourself

A quick Toyota Sienna quiz: every answer comes with an explanation and a link to the manual page.