Toyota Sienna Service Manual: How to troubleshoot ecu controlled systems
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 re ...
General information
A large number of ECU controlled systems are used in the
SIENNA. In general, ECU controlled systems are considered
to be very intricate, requiring a high level of technical
knowledge to troubleshoo ...
Other materials:
Brake control
Sst
Recommended tools
HINT:
Torx is a registered trademark of Textron Inc.
EQUIPMENT
LUBRICANT
BRAKE
SST
RECOMMENDED TOOLS
EQUIPMENT
LUBRICANT
PARKING BRAKE
EQUIPMENT
STEERING COLUMN
SST
EQUIPMENT
...
Gauges and meters
The displayed content may differ depending on the type of meter.
Vehicles with monochrome display
Vehicles with color display
Tachometer
Displays the engine speed in revolutions per minute
Multi-information display
Presents the driver with a variety of driving-related d ...
Cooling fan motor
On-vehicle inspection
1. No. 1 Cooling fan motor
(A) check that the motor turns smoothly when the
battery is connected to the fan motor connector.
(B) measure the current while the motor is turning.
Standard current:
11.8 To 14.8 A at 20°c (68°f)
if the result is not as specified, r ...
