Toyota Sienna Service Manual: Inspection
1. INSPECT THERMOSTAT
(a) Inspect the thermostat.
HINT: The valve opening temperature is inscribed on the thermostat.
(b) Immerse the thermostat in water and gradually heat the water.
(c) Check the valve opening temperature.
Valve opening temperature: 80 to 84°C (176 to 183°F) If the valve opening temperature is not as specified, replace the thermostat.
(d) Check the valve lift.
Valve lift: 7.7 mm (0.303 in.) or more at 95°C (203°F) If the valve lift is not as specified, replace the thermostat.
(e) Check that the valve is fully closed when the thermostat is at low temperatures (below 40°C (104°F)).
If it is not fully closed, replace the thermostat.
Removal
1. REMOVE V-BANK COVER SUB-ASSEMBLY (See
page EM-28)
2. REMOVE NO. 1 ENGINE UNDER COVER (See page
EM-26)
3. DRAIN ENGINE COOLANT (See page CO-6)
4. REMOVE FRONT WHEEL RH
5. REMOVE FRONT FENDER A ...
Installation
1. Install thermostat
(a) Install a new gasket to the thermostat.
(b) Install the thermostat with the jiggle valve facing up.
Hint:
the jiggle valve may be set within 10° on either side
of ...
Other materials:
Diagnostic trouble code chart
HINT:
If a trouble code is displayed during the DTC check, inspect
the circuit listed for that code. For details of each code, refer
to the relevant page listed under respective "DTC No." in the
DTC chart.
TIRE PRESSURE WARNING SYSTEM:
...
Removal
NOTICE:
Always wear safety gloves because the edges of the
seatback frame and seat adjuster are sharp and may
cause injury.
Work must be started more than 90 seconds after the
ignition switch is turned to the LOCK position and the
negative (-) terminal cable is disconnected ...
Terminals of ECU
1. CHECK POWER SLIDE DOOR ECU LH
Disconnect the P25 and P26 ECU connectors, and
check the voltage and resistance of each terminal of
the wire harness side connectors
If the result is not as specified, there may be a
malfunction on the wire harness side.
Reconnect the EC ...
