Toyota Sienna Service Manual: Disassembly
1. INSPECT UNDERDRIVE PACK CLEARANCE
HINT: (See page AX-262)
2. REMOVE UNDERDRIVE CLUTCH FLANGE NO.2 HOLE SNAP RING
a) Using a screwdriver, remove the underdrive clutch flange No.2 snap ring.
3. REMOVE UNDERDRIVE CLUTCH DISC NO.1
(a) Remove the flange, 4 discs and 4 plates from the underdrive clutch drum.
4. REMOVE UNDERDRIVE CLUTCH RETURN SPRING SUB-ASSEMBLY
(a) Place SST on the clutch balancer and compress the spring with a press.
SST 09350-32014
(b) Using a snap ring expander, remove the snap ring.
NOTICE:
- Stop the press when the spring seat is lowered to the place 1 to 2 mm (0.039 to 0.078 in.) from the snap ring groove.
- This prevents the spring seat from being deformed.
- Do not expand the snap ring excessively.
(c) Remove the clutch balancer from the underdrive clutch drum.
(d) Remove the return spring from the underdrive clutch drum.
5. REMOVE UNDERDRIVE CLUTCH PISTON SET
(a) Install the underdrive clutch to the transaxle case.
NOTICE: Be careful not to damage the oil seal ring.
(b) Holding the underdrive clutch piston by hand, apply compressed air (392 kPa, 4.0 kgf/cm2, 57 psi) to the transaxle case to remove the underdrive clutch piston.
6. REMOVE UNDERDRIVE CLUTCH DRUM O-RING
(a) Using a screwdriver, remove the O-ring from the underdrive clutch drum.
Underdrive clutch
COMPONENTS
...
Inspection
1. INSPECT UNDERDRIVE PACK CLEARANCE
(a) Install the underdrive clutch to the transaxle case.
NOTICE:
Be careful not to damage the oil seal rings.
(b) Install a dial indicator as shown in the ...
Other materials:
Ignition Switch Circuit
DESCRIPTION
The Multiplex network body ECU receives the ACC and IG signals from the
ignition switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
Connect the intelligent tester to DLC3.
Turn the ignition switch ON and push the intelligent
tester main ...
Internal Control Module Random Access Memory
(RAM) Error
DTC P0604 Internal Control Module Random Access Memory
(RAM) Error
DESCRIPTION
The ECM continuously monitors its own internal memory status, internal
circuits, and output signals
transmitted to the throttle actuator. This self-check ensures that the ECM is
functioning properly. If any
malfu ...
Inspection
1. INSPECT MULTIPLE DISC CLUTCH HUB
(a) Using a dial indicator, measure the inside diameter
of the forward clutch hub bushing
Standard inside diameter:
23.025 to 23.046 mm (0.9065 to 0.9073 in.)
Maximum inside diameter:
23.09 mm (0.9091 in.)
NOTICE:
Check the contact surface of ...
