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:
Actuator Supply Voltage Circuit / Open
DTC P0657 Actuator Supply Voltage Circuit / Open
DESCRIPTION
The ECM monitors the output voltage to the throttle actuator. This self-check
ensures that the ECM is
functioning properly. The output voltage is usually 0 V when the ignition switch
is turned off. If the output
voltage is higher t ...
TRAC OFF Indicator Light Remains ON
DESCRIPTION
The skid control ECU is connected to the combination meter via CAN and
multiplex communications.
When the traction OFF switch is turned on, the TRAC OFF indicator light will
come on (for 2WD model).
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
When replacing the brake actu ...
Cruise Main Indicator Light Circuit
DESCRIPTION
The ECM detects a cruise control switch signal and sends it to the
combination meter through CAN
and BEAN. Then the CRUISE main indicator light comes on.
The CRUISE main indicator light circuit uses CAN and BEAN for
communication. If there is a
malfunction in ...
