Toyota Sienna Service Manual: Ignition system
Parts location
System diagram
Engine
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Ignition coil and spark plug
Components
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Other materials:
Coolant Thermostat (Coolant Temperature
Below Thermostat Regulating Temperature)
DTC P0128 Coolant Thermostat (Coolant Temperature
Below Thermostat Regulating Temperature)
HINT:
This DTC relates to the thermostat.
DESCRIPTION
This DTC is set when the Engine Coolant Temperature (ECT) does not reach 75C
(167F) despite
sufficient engine warm-up time
DTC No.
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Vehicle lift and support locations
1. NOTICE ABOUT VEHICLE CONDITION WHEN
JACKING UP VEHICLE
(a) The vehicle must be unloaded before jacking up/
lifting up the vehicle. Never jack up/lift up a heavily
loaded vehicle.
(b) When removing heavy parts such as the engine and
transmission, the center of gravity of the vehicle
may s ...
SFR Solenoid Circuit
DESCRIPTION
The solenoid comes on when signals are received from the ECU and controls the
pressure acting on the
wheel cylinders, thus controlling brake force.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 RECONFIRM DTC
HINT:
These codes are detected when a problem is identified in the
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