Toyota Sienna Service Manual: 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, replace the no. 1 Cooling fan motor.
2. NO. 2 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: 9 to 11 A at 20°C (68°F) If the result is not as specified, replace the No. 2 cooling fan motor.
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 ...
Cooling fan ecu
ON-VEHICLE INSPECTION
1. INSPECT COOLING FAN ECU
(a) Inspect the input voltage.
(1) Disconnect the cooling fan ECU connector.
(2) Turn the ignition switch to the ON position.
Check the ...
Other materials:
Diagnosis system
1. CHECK DLC3
The vehicle's ECU uses ISO 15765-4 for
communication protocol. The terminal arrangement
of the DLC3 complies with SAE J1962 and matches
the ISO 15765-4 format.
NOTICE:
*: Before measuring the resistance, leave the
vehicle as is for at least 1 minute and do no ...
Read vin (vehicle identification number)
(a) The VIN reading process is shown in the flowchart
below. Reading the VIN stored in the ECM is
necessary when comparing it to the VIN provided
with the vehicle.
(b) Read the VIN using the intelligent tester.
(c) Check the vehicle's VIN.
(d) Connect the intelligent tester to the DLC3.
...
Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
2. REMOVE AIR FUEL RATIO SENSOR (for Bank 2
Sensor 1)
(a) Disconnect the sensor connector.
(b) Using SST, remove the sensor from the exhaust
manifold.
SST 09224-00010
3. REMOVE FRONT EXHAUST PIPE ASSEMBLY
(a) Disconnect the heat ...
