Toyota Sienna Service Manual: Disassembly
1. REMOVE FRONT DISC BRAKE BUSH DUST BOOT
(a) Using soft jaws on the vise, hold the front disc brake cylinder mounting LH in the vise through aluminum plates.
(b) Using a screwdriver and hammer, remove the 2 front disc brake bush dust boots from the front disc brake cylinder mounting LH.
2. REMOVE CYLINDER BOOT
(a) Using a screwdriver, remove the set ring and cylinder boot.
3. REMOVE FRONT DISC BRAKE PISTON
(a) Place a shop rug, between the front disc brake piston and the disc brake cylinder sub-assembly.
(b) Use compressed air to remove the front disc brake piston from the disc brake cylinder sub-assembly.
| CAUTION: Do not place your fingers in front of the piston when using compressed air. |
NOTICE: Do not spatter the brake fluid.
4. REMOVE PISTON SEAL
(a) Using a screwdriver, remove the piston seal from the front disc brake cylinder sub-assembly.
NOTICE: Do not damage the inner cylinder and cylinder groove.
5. REMOVE FRONT DISC BRAKE BLEEDER PLUG
(a) Remove the front disc brake bleeder plug from the front disc brake cylinder sub-assembly.
6. REMOVE FRONT DISC BRAKE BLEEDER PLUG CAP
7. REMOVE FRONT DISC
(a) Place matchmarks on the front disc and the axle hub.
(b) Remove the front disc.
Removal
HINT:
Remove the RH side by the same procedure as the LH side.
1. REMOVE FRONT WHEEL
2. DRAIN BRAKE FLUID
NOTICE:
Wash the brake fluid off immediately if it attaches to
any painted surface.
3. ...
Inspection
1. INSPECT BRAKE CYLINDER AND PISTON
(a) Check the brake cylinder bore and front disc brake
piston for rust or scoring.
2. INSPECT PAD LINING THICKNESS
(a) Using a ruler, measure the pad linin ...
Other materials:
On-vehicle inspection
1. FRONT SEAT SIDE AIRBAG ASSEMBLY (VEHICLE
NOT INVOLVED IN COLLISION)
Perform a diagnostic system check.
With the front seat side airbag assembly installed on
the vehicle, perform a visual check. If there are any
defects as mentioned below, replace the front
seatback as ...
Diagnosis system
1. CHECK DLC3
The vehicle's ECU uses ISO 15765-4 for
communication protocol. The terminal arrangement
of the DLC3 complies with SAE J1962 and matches
the ISO 15765-4 format.
NOTICE:
*: Before measuring the resistance, leave the
vehicle as is for at least 1 minute and do not
ope ...
Installation
1. INSTALL TIMING CHAIN CASE OIL SEAL
(a) Using SST, tap in a new oil seal until its surface is
flush with the timing chain case edge.
SST 09223-22010, 09506-35010
NOTICE:
Keep the lip free from foreign matter.
Do not tap on the oil seal at an angle.
Make sure that the oil ...
