Toyota Sienna Service Manual: Inspection
1. 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
(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
(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.
Disassembly
1. Remove rear wheel
2. Drain brake fluid
Notice:
wash the brake fluid off immediately if it attaches to
any painted surface.
3. REMOVE REAR BRAKE DRUM SUB-ASSEMBLY
(a) Release the parking brake ...
Reassembly
1. INSTALL REAR WHEEL CYLINDER CUP KIT
(a) Temporarily tighten the bleeder plug to the wheel
cylinder, and install the bleeder plug cap.
(b) Apply lithium soap base glycol grease to the 2 new ...
Other materials:
Throttle Actuator Control Motor Current Range / Performance
DESCRIPTION
The ETCS (Electronic Throttle Control System) has a dedicated power supply
circuit. The voltage (+BM)
is monitored and when it is low (less than 4 V), the ECM determines that there
is a malfunction in the
ETCS and cuts off the current to the throttle actuator.
When the volt ...
Parking Brake Switch Circuit
DESCRIPTION
This circuit is from the parking brake switch to the radio and navigation
assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK BRAKE WARNING LIGHT
Check that the brake warning light comes on when the
parking brake is applied and goes off when it is released.
OK:
The ...
Diagnosis display detailed
description
HINT:
This section contains a detailed description of displays
within diagnostic mode.
Illustrations may differ from the actual vehicle depending
on the device settings and options. Therefore, some
detailed areas may not be shown exactly the same as on
the actual vehicle.
...