Toyota Sienna Service Manual: Removal
1. DISCHARGE FUEL SYSTEM PRESSURE
2. REMOVE V-BANK COVER SUB-ASSEMBLY
3. DRAIN ENGINE COOLANT
4. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY
5. REMOVE FRONT OUTER COWL TOP PANEL SUBASSEMBLY
6. REMOVE AIR CLEANER CAP SUB-ASSEMBLY
7. REMOVE AIR CLEANER CASE SUB-ASSEMBLY
8. REMOVE INTAKE AIR SURGE TANK ASSEMBLY
- Disconnect the 2 water by-pass hoses from the throttle body [A].
- Disconnect the vapor feed hose [B].
- Disconnect the throttle body connector and clamp [C].
- Disconnect the ventilation hose [D].
- Disconnect the union to check valve hose [E].
- Disconnect the connector [F].
- Using a 5 mm socket hexagon wrench, remove the 4 bolts [G].
- Remove the 2 nuts, 2 bolts and intake air surge tank [H].
- Remove the gasket from the intake air surge tank [I].
9. REMOVE FUEL MAIN TUBE SUB-ASSEMBLY
10. REMOVE INTAKE MANIFOLD
11. REMOVE KNOCK CONTROL SENSOR
- Disconnect the 2 knock sensor connectors.
- Remove the 2 bolts and then remove the 2 knock control sensors.
Knock sensor
COMPONENTS
...
Inspection
1. KNOCK CONTROL SENSOR
Using an ohmmeter, measure the resistance
between the terminals.
Resistance:
120 to 280 kΩ at 20C (68F)
If the resistance is not specified, replac ...
Other materials:
Fold Seat Switch Circuit
DESCRIPTION
When the fold seat switch is operated, a switch operation signal is sent to
the fold seat control ECU. The
ECU receives switch operation signals from each switch and activates the folding
motor, reclining motor,
and release actuator.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 IN ...
Rear Occupant Classification Sensor RH Collision
Detection
DTC B1788 Rear Occupant Classification Sensor RH Collision
Detection
DESCRIPTION
DTC B1788 is output when the occupant classification ECU receives a collision
detection signal sent by
the rear occupant classification sensor RH if an accident occurs.
DTC B1788 is also output when the front s ...
Automatic transaxle fluid
On-vehicle inspection
1. CHECK FLUID LEVEL
HINT:
Drive the vehicle so that the engine and transaxle are at
normal operating temperature.
Fluid temperature:
70 to 80°C (158 to 176°F)
(a) Park the vehicle on a level surface and set the
parking brake.
(b) With the engine idling and the ...
